Suno Song Generation API Integration Guide

As AI applications become more widespread, various AI programs have gradually become popular. AI has gradually penetrated every aspect of people's work and lives. The industries involving AI are also becoming increasingly diverse, from initial writing, to medical care and education, and now to music.

Suno is a professional, high-quality AI song and music creation platform. Users only need to enter simple text prompts to generate songs with vocals based on genre styles and lyrics. This AI music generator was developed by team members from well-known technology companies such as Meta, TikTok, and Kensho, with the goal of allowing everyone to create wonderful music without needing any musical instruments or tools.

The following is the progress of model updates:

Version	model	Release Date	lyric Limit	style Limit	Maximum Song Duration
v6	chirp-v6	2026.09.09	—	—	—
v6 Wild	chirp-v6-wild	2026.09.09	—	—	—
v6 Mini	chirp-v6-mini	2026.09.09	—	—	—
v5.5	chirp-v5-5	2026.03.27	5000	1000	8 minutes
v5	chirp-v5	2025.09.23	5000	1000	8 minutes
v4.5+	chirp-v4-5-plus	2025.07.17	5000	1000	8 minutes
v4.5	chirp-v4-5	2025.05.03	5000	1000	4 minutes
v4	chirp-v4	2024.12.17	3000	200	150 seconds
v3.5	chirp-v3-5	---	3000	200	120 seconds

The lyric and style limits in the table above are the upper limits in custom mode (custom is true). The non-custom inspiration mode (custom is false) only requires filling in prompt, with a maximum length of 500 characters (consistent across all models).

Suno now supports chirp-v6, chirp-v6-wild, and chirp-v6-mini. It is recommended to use chirp-v6; old model names remain compatible.

However, Suno officially does not provide an API. 字节云 provides a set of Suno APIs that simulate integration with the official Suno platform, making it convenient and fast to generate the music you want.

¶ Application and Usage

To use the Suno Audios Generation API, first go to the 字节云 Console to obtain your API Token and keep it for later use.

If you have not yet logged in or registered, you will be automatically redirected to the login page to register and log in. After completion, you will automatically return to the current page.

One API Token can call all platform services; there is no need to apply separately for each service. Your first application includes free credits for a free trial; when credits are insufficient, you can recharge your general balance in the Console.

📘 Full documentation: Suno Audios Generation API →

¶ Basic Usage

For whatever song you want, you can enter any text. For example, if I want to generate a song about Christmas, I can enter a song for Christmas, as shown in the figure:

You can see that we set the Request Headers here, including:

accept: The format of the response result you want to receive. Here, it is set to application/json, which is JSON format.
authorization: The key for calling the API. After applying, you can directly select it from the dropdown.

Additionally, the Request Body is set, including:

action: Audio task type, defaults to generate. Supports operations such as generation, extension, cover, mashup, stem splitting, adding audio tracks, extracting specified audio tracks, generating sound effects, and adjusting speed, all called through POST /suno/audios.
prompt: Suno's official inspiration mode prompt (effective when custom is false), with a maximum of 500 characters.
model: The model for this music generation task. The v6 series includes chirp-v6, chirp-v6-wild, and chirp-v6-mini; legacy model names remain compatible.
max_mode: Enhanced generation mode. generate is enabled only when both custom and max_mode are true, costing 1.12 Credits; add_stem can be enabled directly, costing 1.344 Credits. When disabled or omitted, they cost 0.56 and 0.672 Credits respectively.
variety: Diversity strength of the generated results, with options off, normal, high, extra, and max. Only used for generate and add_stem; passing it to other actions returns 400.
lyric: Lyrics content for Suno's official custom mode. chirp-v3-5 and chirp-v4 support up to 3000 characters; chirp-v4-5 and above (including chirp-v5 and chirp-v5-5) support up to 5000 characters.
custom: Whether to use custom mode, defaults to: false.
instrumental: The instrumental music option for Suno's official inspiration mode.
title: Music title for Suno's official custom mode. chirp-v3-5 and chirp-v4 support up to 80 characters; chirp-v4-5 and above support up to 100 characters.
style: Music style for Suno's official custom mode. chirp-v3-5 and chirp-v4 support up to 200 characters; chirp-v4-5 and above (including chirp-v5 and chirp-v5-5) support up to 1000 characters.
negative_tags: Music styles or genres to exclude during custom generation, also usable for replace_section. This API currently has no fixed character limit for this field; excessively long content may still be unprocessable, so it is recommended to keep descriptions concise.
audio_weight: Influence weight of audio or voice characteristics, ranging from 0 to 1; 0 is also a valid value. It can be used for operations such as generation, extension, cover, adding audio tracks, and voice consistency; when there is no reference audio or voice characteristic, the model may weaken or ignore this value.
audio_id: ID of the reference music, used for subsequent operations such as cover, extension, and stem splitting. The audio file can still be downloaded, which does not mean subsequent processing for that ID is always available; if suno_processing_unavailable is returned, retain the task_id and trace_id and contact support.
overpainting_start/overpainting_end: Start and end times for adding vocals to existing instrumental music, in seconds.
underpainting_start/underpainting_end: Start and end times for adding accompaniment to a cappella vocals, in seconds.
persona_id: Voice ID obtained through the Persona or voice creation API, not the song's audio_id.
continue_at: Extension boundary, in seconds. For example, 213.5 means generating the subsequent segment starting at 3 minutes and 33.5 seconds. lyric and style only guide new content after the boundary and do not replace lyrics or singing before the boundary in the source audio.
style_influence: Style influence in custom mode, ranging from 0 to 1; larger values usually match the selected style more closely; 0 is passed as a valid value.
replace_section_end: Final time of the replacement segment.
replace_section_start: Start time of the replacement segment.
vocal_gender: Controls preference for female or male vocals: female vocals use f, male vocals use m; effective for models 4.5 and above. This is a preference setting and is not guaranteed to be strictly followed.
weirdness: Weirdness level in custom mode, ranging from 0 to 1; larger values are usually more creative and experimental; 0 is passed as a valid value.
duration: Desired song duration, in seconds. It must be an integer ranging from 10 to 360. Currently, only generate uses this parameter, and the specific effect depends on the mode and model. It is a preference prompt rather than a hard constraint: the model will reference it but does not guarantee reaching it. The actual finished duration is subject to the duration field in the response and is usually shorter than the desired value.

¶ Scope of Voice ID Usage

generate, cover, upload_cover, artist_consistency, and artist_consistency_vox can use persona_id. The latter two actions must provide persona_id; they can also provide the audio_id of the song used when creating that Persona.

extend and upload_extend do not use an additional persona_id. Whether mashup and inspo support voice IDs depends on the selected service channel; other actions are not guaranteed to apply this field, so use it according to the instructions for each operation. vocal_gender is an optional gender preference and cannot replace a voice ID.

Subsequent creation operations require a valid source audio_id; mashup requires at least two mashup_audio_ids. HTTP 400 is returned when required sources or time parameters are missing.

¶ Scope of Advanced Parameters

Parameter	Values	Supported actions	Description
`weirdness`	0-1	Optional	Adjusts experimentalism; `0` is a valid value; the effect depends on the action, mode, and model
`style_influence`	0-1	Optional	Adjusts the tendency to follow style; `0` is a valid value; the effect depends on the action, mode, and model
`audio_weight`	0-1	Optional	Adjusts the influence of audio or sound features; may be ignored by the model when no reference information is provided
`variety`	`off` / `normal` / `high` / `extra` / `max`	`generate`, `add_stem`	Adjusts style diversity between results
`max_mode`	boolean	`generate` (requires `custom=true`), `add_stem`	Enhances consistency and is billed according to enhanced mode
`vocal_gender`	`f` / `m`	Generation actions that support vocal control	Preference setting, strict adherence is not guaranteed
`duration`	Integer 10-360	`generate`	Expected duration; other actions do not currently use this field, actual length is subject to the result

The platform validates parameter types and value ranges, but will not reject these optional adjustment fields solely because the action differs; specific effects depend on the action, mode, and model.

lyric_prompt: The prompt for generating lyrics, which takes effect if and only if custom is true and lyric is not provided.
callback_url: The URL for receiving callback results.
async: Optional. When set to true, the API immediately returns task_id, and there is no need to provide callback_url; subsequently, use the corresponding task query API to poll for results.

The generated code is as follows:

You can click the "Try" button to test the API directly. Wait 1-2 minutes, and the result is as follows:

{
  "success": true,
  "task_id": "e72fb249-bd5b-4e2a-b20c-8a06fea5ac14",
  "trace_id": "7dbc5b6a-b2c0-4d85-9d39-fa8a8a785ccf",
  "data": [
    {
      "id": "b481b17a-bf50-4e10-8adc-4d5635050893",
      "title": "Under the Mistletoe",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-001",
      "lyric": "[Verse]\nSnowflakes falling on the ground\nTwinkling lights all around\nThe scent of pine fills the air\nChristmas magic everywhere\n[Chorus]\nUnder the mistletoe tonight\nHearts aglow in the soft moonlight\nLaughter echoes\nSpirits bright\nIt’s Christmas time\nIt feels so right\n[Verse 2]\nStockings hung by the fire’s glow\nWarmth inside while the cold winds blow\nCookies baking\nSweet delight\nA season of joy shining bright\n[Chorus]\nUnder the mistletoe tonight\nHearts aglow in the soft moonlight\nLaughter echoes\nSpirits bright\nIt’s Christmas time\nIt feels so right\n[Bridge]\nCarols sung by candlelight\nStars above make the world feel tight\nPeace and love\nA season’s creed\nFilling hearts with all we need\n[Chorus]\nUnder the mistletoe tonight\nHearts aglow in the soft moonlight\nLaughter echoes\nSpirits bright\nIt’s Christmas time\nIt feels so right",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T15:59:32.468Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "prompt": "A song for Christmas",
      "style": "holiday, cheerful, male vocals",
      "duration": 154.92
    },
    {
      "id": "fbf22dab-5e2b-4e02-84c0-6d7605f14c3d",
      "title": "Under the Mistletoe",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-002",
      "lyric": "[Verse]\nSnowflakes falling on the ground\nTwinkling lights all around\nThe scent of pine fills the air\nChristmas magic everywhere\n[Chorus]\nUnder the mistletoe tonight\nHearts aglow in the soft moonlight\nLaughter echoes\nSpirits bright\nIt’s Christmas time\nIt feels so right\n[Verse 2]\nStockings hung by the fire’s glow\nWarmth inside while the cold winds blow\nCookies baking\nSweet delight\nA season of joy shining bright\n[Chorus]\nUnder the mistletoe tonight\nHearts aglow in the soft moonlight\nLaughter echoes\nSpirits bright\nIt’s Christmas time\nIt feels so right\n[Bridge]\nCarols sung by candlelight\nStars above make the world feel tight\nPeace and love\nA season’s creed\nFilling hearts with all we need\n[Chorus]\nUnder the mistletoe tonight\nHearts aglow in the soft moonlight\nLaughter echoes\nSpirits bright\nIt’s Christmas time\nIt feels so right",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T15:59:32.468Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "prompt": "A song for Christmas",
      "style": "holiday, cheerful, male vocals",
      "duration": 158.48
    }
  ]
}

As you can see, at this point we have obtained the content of two songs, including the title, preview image, lyrics, audio, video, and more.

The field descriptions are as follows:

success: Whether generation was successful. If successful, it is true; otherwise, it is false.
data: A list containing detailed information about the generated songs.
- state: The song generation status, mainly including four types, specifically as follows:
  - succeeded: Generation succeeded
  - pending: In queue
  - running: In progress
  - error: Failed
- id: Song ID
- title: The title of the song
- image_url: The cover image of the song
- lyric: The lyrics of the song
- audio_url: The final audio URL of the song. The platform will prioritize returning an 字节云 CDN URL; if persistence fails, it may return the original media URL, so please download it promptly.
- video_url: The video file of the song; opening it displays an mp4 video.
- created_at: Creation time
- model: The model used, generally the latest v3 model
- style: Style

¶ Custom Generation

If you want to customize the generated lyrics, you can enter lyrics:

At this point, the lyric field can be passed content similar to the following:

[Verse]\nSnowflakes falling all around\nGlistening white\nCovering the ground\nChildren laughing\nFull of delight\nIn this winter wonderland tonight\nSanta's sleigh\nUp in the sky\nRudolph's nose shining bright\nOh my\nHear the jingle bells\nRinging so clear\nBringing joy and holiday cheer\n[Verse 2]\nRoasting chestnuts by the fire's glow\nChristmas lights\nThey twinkle and show\nFamilies gathering with love and cheer\nSpreading warmth to everyone near

Note that the \n in the lyrics here represents line breaks. If you do not know how to generate lyrics, you can use the lyrics generation API provided by 字节云 to generate lyrics through a prompt. The API is Suno Lyrics Generation API.

Next, we need to generate a song based on the lyrics, title, and custom style, and the following content can be specified:

lyric: Lyrics text
custom: Fill in true, which represents custom generation. This parameter defaults to false, which represents generation using prompt.
title: The title of the song.
style: The style of the song, optional.

The filling example is as follows:

After filling it out, the following code is automatically generated:

The corresponding code:

curl -X POST 'https://api.bytecloude.com/suno/audios' \
-H 'accept: application/json' \
-H 'authorization: Bearer {token}' \
-H 'content-type: application/json' \
-d '{
  "action": "generate",
  "prompt": "A song for Christmas",
  "model": "chirp-v4-5",
  "lyric": "[Verse]\\nSnowflakes falling all around\\nGlistening white\\nCovering the ground\\nChildren laughing\\nFull of delight\\nIn this winter wonderland tonight\\nSanta's sleigh\\nUp in the sky\\nRudolph's nose shining bright\\nOh my\\nHear the jingle bells\\nRinging so clear\\nBringing joy and holiday cheer\\n[Verse 2]\\nRoasting chestnuts by the fire's glow\\nChristmas lights\\nThey twinkle and show\\nFamilies gathering with love and cheer\\nSpreading warmth to everyone near",
  "custom": true
}'

Testing is allowed, and the generated result is similar.

¶ Custom Singer Style Generation Feature

If you want to use a singer style to generate songs, first generate a song through the basic usage above.
Finally, you need to set this song as a singer style, then you need to go to Suno Persona API to generate a singer-style ID parameter persona_id based on the music ID audio_id generated officially. The specific parameters are shown in the figure below:

After filling it out, the following code is automatically generated:

The corresponding Python code:

import requests

url = "https://api.bytecloude.com/suno/persona"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "audio_id": "97efc9f4-0e8d-4b3e-88df-14568fa1b11f",
    "name": "test"
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you can find that a result will be obtained, as follows:

{
  "success": true,
  "task_id": "7628b754-4fe7-4e79-bda4-806d0dd8bf6e",
  "data": {
    "persona_id": "e0d7319e-aa2a-44cb-b00a-916218d7cb0b"
  }
}

We use the audio_id and persona_id above, 97efc9f4-0e8d-4b3e-88df-14568fa1b11f and e0d7319e-aa2a-44cb-b00a-916218d7cb0b, respectively, as the example data this time. Then you can set the parameter action to artist_consistency (if it is the new singer style Persona-v2-vox, action must be set to artist_consistency_vox), and input the ID of the song that needs to continue being generated and the singer style ID. The filling example is as follows:

After filling it out, the following code is automatically generated:

The corresponding Python code:

import requests

url = "https://api.bytecloude.com/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "artist_consistency",
    "prompt": "A song for Christmas",
    "model": "chirp-v4-5",
    "persona_id": "e0d7319e-aa2a-44cb-b00a-916218d7cb0b",
    "audio_id": "97efc9f4-0e8d-4b3e-88df-14568fa1b11f"
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you can find that a result will be obtained, as follows:

{
  "success": true,
  "task_id": "9b732b1a-bd67-48bc-95e4-90140e06836f",
  "trace_id": "30fcd88e-7687-4137-92d7-913b58115204",
  "data": [
    {
      "id": "727a36e2-8dce-4df7-99e5-14e44635c80f",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-003",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T16:27:33.979Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 244.4
    },
    {
      "id": "3b33301a-b17e-4b25-8842-09b46dab1a36",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-004",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T16:27:33.979Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 229.88
    }
  ]
}

It can be seen that the result content is consistent with the above, which achieves the function of generating songs using a singer style.

¶ Continue Generation Feature

If you want to continue generating an already generated Suno song, you can set the action parameter to extend, and enter the ID of the song that needs to be continued. The song ID is obtained according to the basic usage. As can be seen above, at this point you can see that the song ID is:

"id": "97efc9f4-0e8d-4b3e-88df-14568fa1b11f"

Note that the id in the lyrics here is the ID of the generated song. If you do not know how to generate a song, you can refer to the basic usage above to generate a song.

If you want to continue generating a song that you uploaded yourself, you can set the action parameter to upload_extend, and enter the ID of the custom uploaded song that needs to be continued. The song ID is obtained using the Suno Upload Generation API, as shown below:

Next, you must fill in the lyrics for the continuation segment, and you can specify the style:

lyric: Only used to guide the lyrics of the newly generated segment after continue_at; it will not replace the lyrics before this time point in the source audio.
custom: Set to true, indicating custom generation. This parameter defaults to false, indicating generation using prompt.
style: The song style of the continuation segment, optional.
continue_at: The continuation boundary, in seconds. For example, 213.5 indicates that the subsequent segment starts being generated from 3 minutes and 33.5 seconds.

The continue_at for extend and upload_extend must be greater than 0 and supports fractional seconds, such as 30.792; it will not be rounded during submission.

extend is used to continue creating from an existing song, not to replace the lyrics for the entire song. If you want to use new lyrics for the entire song from the beginning, please use generate to generate it again; if you want to reinterpret a song by referring to an existing song, you can use cover. When passing in an entire set of new lyrics, the original lyrics before continue_at will still not be replaced.

An example is filled in as follows:

After filling it in, the code is automatically generated as follows:

The following retains a real historical call snapshot, where continue_at is 2 seconds, so only the first 2 seconds belong to the original content before the continuation boundary. When actually continuing near the end of a song, this value should be set to the second at which you expect the continuation to begin, and only the new section to be sung after the boundary should be provided in lyric.

The corresponding Python code:

import requests

url = "https://api.bytecloude.com/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "extend",
    "prompt": "A song for Christmas",
    "model": "chirp-v4-5",
    "audio_id": "97efc9f4-0e8d-4b3e-88df-14568fa1b11f",
    "continue_at": 2,
    "lyric": "[Verse]\\nSnowflakes falling all around\\nGlistening white\\nCovering the ground\\nChildren laughing\\nFull of delight\\nIn this winter wonderland tonight\\nSanta's sleigh\\nUp in the sky\\nRudolph's nose shining bright\\nOh my\\nHear the jingle bells\\nRinging so clear\\nBringing joy and holiday cheer\\n[Verse 2]\\nRoasting chestnuts by the fire's glow\\nChristmas lights\\nThey twinkle and show\\nFamilies gathering with love and cheer\\nSpreading warmth to everyone near",
    "custom": True,
    "instrumental": False
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you can see that a result will be obtained as follows:

{
  "success": true,
  "task_id": "75b835d9-30d1-4641-8524-0aeedbdc9e1a",
  "trace_id": "44c41045-a2e1-4d19-aafc-7abd239d0d5c",
  "data": [
    {
      "id": "0a1e1b10-c36a-41c9-9bfb-b26d9d25db98",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-005",
      "lyric": "[Verse]\\nSnowflakes falling all around\\nGlistening white\\nCovering the ground\\nChildren laughing\\nFull of delight\\nIn this winter wonderland tonight\\nSanta's sleigh\\nUp in the sky\\nRudolph's nose shining bright\\nOh my\\nHear the jingle bells\\nRinging so clear\\nBringing joy and holiday cheer\\n[Verse 2]\\nRoasting chestnuts by the fire's glow\\nChristmas lights\\nThey twinkle and show\\nFamilies gathering with love and cheer\\nSpreading warmth to everyone near",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T16:38:35.509Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 165.92
    },
    {
      "id": "4334c5b4-0a44-4b26-a8f6-66cc4dbb8fc3",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-006",
      "lyric": "[Verse]\\nSnowflakes falling all around\\nGlistening white\\nCovering the ground\\nChildren laughing\\nFull of delight\\nIn this winter wonderland tonight\\nSanta's sleigh\\nUp in the sky\\nRudolph's nose shining bright\\nOh my\\nHear the jingle bells\\nRinging so clear\\nBringing joy and holiday cheer\\n[Verse 2]\\nRoasting chestnuts by the fire's glow\\nChristmas lights\\nThey twinkle and show\\nFamilies gathering with love and cheer\\nSpreading warmth to everyone near",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T16:38:35.509Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 158.84
    }
  ]
}

It can be seen that lyric in the result returns the lyrics text used for this continuation task. This field is not a verbatim transcription of the complete finished audio; for extend, the source audio before continue_at still uses the original lyrics, and the new lyrics are only used to guide the continuation segment.

¶ Get the Complete Song

The current model's extend result usually already includes the source audio before continue_at and new content after the boundary. First determine whether it is already a complete song based on the actual duration and content of the returned audio. If what is returned is an independent continuation segment, or if multiple continuation histories need to be explicitly merged into one song, then use the concatenation feature:

action: The content is concat.
audio_id: The ID of the last continuation segment.

For example, if the extended song ID is: 0a1e1b10-c36a-41c9-9bfb-b26d9d25db98, then the parameters can be set as follows:

{
  "action": "concat",
  "audio_id": "0a1e1b10-c36a-41c9-9bfb-b26d9d25db98"
}

The other parameters remain unchanged. What is returned is one complete song, which is the concatenation result of all song segments, but the result contains only one song, as shown below:

{
  "success": true,
  "task_id": "0f794915-8418-4124-93f5-b7eb3a417167",
  "trace_id": "62afcce0-e7e5-44b8-8c2e-4bba12a4f414",
  "data": [
    {
      "id": "0efec7e0-11bf-4313-9981-2c0e7218d7dd",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-007",
      "lyric": "[Verse]\\nSnowflakes falling all around\\nGlistening white\\nCovering the ground\\nChildren laughing\\nFull of delight\\nIn this winter wonderland tonight\\nSanta's sleigh\\nUp in the sky\\nRudolph's nose shining bright\\nOh my\\nHear the jingle bells\\nRinging so clear\\nBringing joy and holiday cheer\\n[Verse 2]\\nRoasting chestnuts by the fire's glow\\nChristmas lights\\nThey twinkle and show\\nFamilies gathering with love and cheer\\nSpreading warmth to everyone near\n[Verse]\\nSnowflakes falling all around\\nGlistening white\\nCovering the ground\\nChildren laughing\\nFull of delight\\nIn this winter wonderland tonight\\nSanta's sleigh\\nUp in the sky\\nRudolph's nose shining bright\\nOh my\\nHear the jingle bells\\nRinging so clear\\nBringing joy and holiday cheer\\n[Verse 2]\\nRoasting chestnuts by the fire's glow\\nChristmas lights\\nThey twinkle and show\\nFamilies gathering with love and cheer\\nSpreading warmth to everyone near",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T16:43:06.718Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 167.91997916666668,
      "concat_history": [
        {
          "continue_at": 2,
          "id": "97efc9f4-0e8d-4b3e-88df-14568fa1b11f",
          "infill": false,
          "source": "web",
          "type": "gen"
        },
        {
          "id": "0a1e1b10-c36a-41c9-9bfb-b26d9d25db98"
        }
      ]
    }
  ]
}

¶ Music Cover

After continuing to generate a song based on an existing song, the style of the returned song may not be suitable. If you want to create a cover of a previously generated song (custom-uploaded music is also supported), you need to use the music cover method, and can specify the following content:

action: The content is cover; when performing a cover operation on custom-uploaded music, the content must be specified as: upload_cover.
audio_id: The ID of the previously generated song.

If you need to use a specified voice for the cover, you can also pass in persona_id. Private voices created through /suno/voices must first upload the original song in /suno/upload with the same persona_id, and then use the returned audio_id for upload_cover. All steps must use the same service channel. There is no need to additionally specify vocal_gender; gender preference cannot replace a voice ID.

For example, if the previously generated song ID is: 0a1e1b10-c36a-41c9-9bfb-b26d9d25db98, then the parameters can be set as follows:

{
  "action": "cover",
  "audio_id": "0a1e1b10-c36a-41c9-9bfb-b26d9d25db98",
  "prompt": "A song for Christmas",
  "model": "chirp-v4-5"
}

The other parameters remain unchanged. What is returned is a covered song, which is the result after creating a cover of the previously generated song, as shown below:

{
  "success": true,
  "task_id": "b9d43d06-2e0a-4b5e-9e0d-7dfab32e00ab",
  "trace_id": "6c5e567d-0fdc-4c44-9b36-4090d9a75ff5",
  "data": [
    {
      "id": "6988fa57-f810-41cf-afab-7838db2c77dc",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-008",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T16:44:13.007Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 182.4
    },
    {
      "id": "ce98b991-0258-4f05-8245-e43d4efa8fb8",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-009",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T16:44:13.007Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 179.72
    }
  ]
}

The generated result is similar to the above, which completes the process of generating a cover of the previously generated song.

¶ Replace Section

replace_section regenerates the selected segment based on the time range of the source song and splices the result back into the original track. replace_section_result_mode defaults to full_song, returning 2 complete songs that can be played directly, without calling concat again.

¶ How to Fill in the Input

action: replace_section.
audio_id: The complete song ID to edit. When editing again, use the data[].id of the complete song selected last time, not the task_id.
model: The song generation model, for example chirp-v6.
lyric: The local new lyrics to be sung in the selected range. There is no need to provide the full song lyrics in order to obtain a complete song.
prompt: Explicitly specify the local new lyrics for this replacement. When changing lyrics, it is recommended to enter the same content as lyric to avoid the two fields expressing different lyrics. Existing requests that only provide local lyric and omit prompt can still be used, but adding prompt itself does not guarantee successful lyric changes.
style, negative_tags: Optional style descriptions and exclusions; prompt in this operation is not an inspiration description as in normal song creation.
replace_section_start, replace_section_end: The start and end times of the selected range in the source song for this operation, in seconds, with decimal support. The start point must not be less than 0, and the end point must be greater than the start point and must not exceed the source song duration.
replace_section_result_mode: full_song (default) returns 2 complete songs; candidates returns 2 replacement candidates that have not yet been concatenated.

Do not treat “lyric must be the complete lyrics after replacement, and prompt must be local lyrics” as a general usage pattern. Full-lyrics input may produce excessively long replacement content in some tasks, making the entire song significantly longer after concatenation. Local input also does not guarantee a fixed duration or word-for-word adherence to the lyrics; this is generative editing, and the actual audio needs to be checked.

¶ Start a task and obtain the complete song

Below is an example request format. Please replace YOUR_COMPLETED_AUDIO_ID and the time range with your own source song ID and actual selected range; the example assumes that seconds 30–50 correspond to the following four lines.

{
  "action": "replace_section",
  "audio_id": "YOUR_COMPLETED_AUDIO_ID",
  "model": "chirp-v6",
  "custom": false,
  "instrumental": false,
  "lyric": "晚风吹过安静的街巷\n绿色风筝停在我身旁\n我们沿着河岸轻轻唱\n把今天的故事放心上",
  "prompt": "晚风吹过安静的街巷\n绿色风筝停在我身旁\n我们沿着河岸轻轻唱\n把今天的故事放心上",
  "replace_section_start": 30.0,
  "replace_section_end": 50.0,
  "replace_section_result_mode": "full_song",
  "async": true
}

After submission, use the returned task_id to query /suno/tasks, with the request body {"action":"retrieve","id":"YOUR_TASK_ID"}. After the task is completed, obtain the id, audio_url, and duration of the two complete songs from response.data in the task response, then listen to and select one of them. success: true means that the task was executed successfully; it does not mean that the new lyrics have been sung word for word or that the duration meets expectations.

¶ Selected range, result inspection, and editing again

First listen to the source song, then use the timing information from /suno/timing to determine the selected range, covering complete musical phrases as much as possible. Do not select ranges based on fixed indexes in the lyrics array, and do not replace a range containing more musical phrases with only a few lyric lines while expecting the rhythm to remain completely unchanged.
Keep the number of lines, word count, and rhythm of the new lyrics as close as possible to the original content in the selected range. Even changing only a few words requires listening verification and cannot guarantee success.
Check whether the new lyrics are sung in the target range, whether the transitions before and after are natural, and whether the full song duration is reasonable. full_song means that a complete song is returned; it does not mean it has the same length as the original song. When the replacement segment becomes longer, the latter half will shift accordingly. The duration request parameter is only used for normal generation and cannot lock the duration of a replacement segment.
The returned lyric is lyric metadata. In complete-song mode, complete lyrics will be assembled when source lyric timing information is available; otherwise, they may be empty. It is not an audio transcription; the appearance of new lyrics does not prove that the audio has sung the new lyrics. Timing alignment information should also be checked together with listening, especially for outputs that have already been edited.
When editing again, use the selected complete finished-song ID as the new audio_id, and recheck the duration and selected range of that finished song. Do not reuse the time coordinates from before editing, and do not directly use the entire lyric returned last time as the local input for this operation.

If the task has been completed but it still sings the old lyrics, omits lyrics, or becomes significantly longer, first check the source song ID, selected range, and local lyrics, then check the other result. Increasing the task query frequency will not change already generated content. If the issue persists, keep the task_id, source song ID, request fields, selected range, and result audio for verification.

¶ Optional: get candidates first, then concatenate manually

Only when you need to select a replacement candidate yourself, set replace_section_result_mode: "candidates". Candidates may contain context and cannot be treated as complete songs based solely on candidate duration. After selecting one, call concat with the candidate's data[].id, then obtain the complete finished song.

The default full_song has already completed concatenation, so there is no need to perform this step.

¶ Vocal and instrumental separation

Billing: After action=stems succeeds, the standard fee for each request is 0.56 Credits; the vocals and accompaniment returned by the same request are counted together as one. Applicable consumption discounts are subject to the actual billing statement, and failed requests are not charged. all_stems and extract_stem are billed according to their respective prices.

When secondary creation requires separate operations on accompaniment and vocals after generating a song, instrumental accompaniment and a cappella vocals can be separated. You can specify the following content:

action: The value is stems.
audio_id: The ID of the previously generated song.

For example, if the song ID after the original generation is: ec13e502-d043-4eb2-92ee-e900c6da69d1, then the parameters can be set as follows:

{
  "action": "stems",
  "audio_id": "ec13e502-d043-4eb2-92ee-e900c6da69d1"
}

With the above parameters, you can obtain the vocal and instrumental separation result, as follows:

{
  "success": true,
  "task_id": "4050affc-f8a6-4cba-a86c-bf201eed053d",
  "trace_id": "5107ee58-687d-422f-9195-fa0e82e1fcc8",
  "data": [
    {
      "id": "e3de0928-085a-42c4-b982-3b24738d1989",
      "title": "Deck the Sky - Vocals",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-013",
      "lyric": "[Verse]\nSnowflakes dance on rooftops high\nChildren's laughter fills the sky\nCarols ring from church bells loud\nHolidays a joyful crowd\n[Verse 2]\nCandy canes and cocoa warm\nWrapped up tight in our own storm\nStockings hung with dreams and cheer\nMagic growing every year\n[Chorus]\nDeck the sky with twinkling stars\nHoliday joy feels ours and ours\nSing the songs of love and light\nChristmas glows so pure and bright\n[Verse 3]\nFireside tales of long ago\nReindeer prance in icy glow\nEvergreen and tinsel’s gleam\nChristmas time a lovely dream\n[Bridge]\nHearts are full with friends and kin\nMistletoe for love to win\nGifts of love and hope we share\nChristmas spirit everywhere\n[Chorus]\nDeck the sky with twinkling stars\nHoliday joy feels ours and ours\nSing the songs of love and light\nChristmas glows so pure and bright",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "https://cdn.acedata.cloud/assets/examples/gemini/04a043bd-6b23-4b4e-945c-ce48158c3eee-3a89912507c7.mp4?example=video-001",
      "created_at": "2025-01-05T07:49:16.881Z",
      "model": "",
      "state": "succeeded",
      "style": "holiday, jolly",
      "duration": 174.16
    },
    {
      "id": "ad5d7c89-709c-4eb4-a5a6-72f9f5e57fdb",
      "title": "Deck the Sky - Instrumental",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-014",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "https://cdn.acedata.cloud/assets/examples/gemini/04a043bd-6b23-4b4e-945c-ce48158c3eee-3a89912507c7.mp4?example=video-002",
      "created_at": "2025-01-05T07:49:16.892Z",
      "model": "",
      "state": "succeeded",
      "style": "holiday, jolly",
      "duration": 174.16
    }
  ]
}

The generated result is similar to the above, which completes the process of separating vocals and instrumentals from the originally generated song.

¶ Full-Track Vocal and Instrumental Separation

The task will wait until all audio tracks have been generated before returning a successful final state. The appearance of a playable URL during processing does not mean that the entire set of audio tracks has been completed.

When full-track vocal and instrumental separation is needed after generating a song, you can specify the following content:

action: The content is all_stems.
audio_id: The ID of the previously generated song.

For example, if the original generated song ID is: bdf23a5a-59f5-4103-b452-054a824a7f9f, then you can set the parameters as follows:

{
  "action": "all_stems",
  "audio_id": "bdf23a5a-59f5-4103-b452-054a824a7f9f"
}

Through the above parameters, you can obtain the result of full-track vocal and instrumental separation, as follows:

  "success": true,
  "task_id": "f4b16fb9-8478-4857-88c7-b9a1f0bb9518",
  "trace_id": "9c560ebd-4fc6-4bdb-988a-8890160a92fb",
  "data": [
    {
      "id": "f86ca64a-9519-4ea7-a592-52438e001412",
      "title": "安全之弦 (Vocals)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-015",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "99e649a7-a394-47b9-a915-d7f847285a36",
      "title": "安全之弦 (Backing Vocals)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-016",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "6d710bf7-809f-4fdc-bb63-b8cb3a456d42",
      "title": "安全之弦 (Drums)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-017",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "e05f07e3-7d80-4713-8e51-7f176c733543",
      "title": "安全之弦 (Bass)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-018",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    },
{
      "id": "93fe7cd8-62fd-4739-b78e-142c7e0b8562",
      "title": "Strings of Safety (Guitar)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-019",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "8367d71c-fdd3-441c-8ebe-70c33cca821b",
      "title": "Strings of Safety (Keyboard)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-020",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "28c03590-731c-416e-8fd3-95cdb3d75043",
      "title": "Strings of Safety (Percussion)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-021",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "3d4c1a28-4e1c-485a-8201-d21bb93aca2f",
      "title": "Strings of Safety (Strings)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-022",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "b9db8ded-01ec-4e37-b8a5-64aab3a814c2",
      "title": "Strings of Safety (Synth)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-023",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "10a5248e-32e6-42b9-8da1-678a8a392aef",
      "title": "Strings of Safety (FX)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-024",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "2d272128-111f-4901-8f62-5ae1eb43095a",
      "title": "Strings of Safety (Brass)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-025",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "4a7c19a5-f8d4-4e4a-add9-aa0bad9307cc",
      "title": "Strings of Safety (Woodwinds)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-026",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "1ca774f9-3e75-48a6-941b-808875eadcd2",
      "title": "Strings of Safety (Vocals)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-027",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "14c5ffc7-addf-4fee-afd2-4b8b3e7ee470",
      "title": "Strings of Safety (Backing Vocals)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-028",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    },
{
      "id": "9d044557-450d-48ab-90dc-8eaf6f1cdb6c",
      "title": "Strings of Safety (Drums)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-029",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "efd052d0-c12f-47b3-8282-1f3ef7610e1f",
      "title": "Strings of Safety (Bass)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-030",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "5775372b-292e-4420-96ef-60e57a60cc1f",
      "title": "Strings of Safety (Guitar)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-031",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "dab3f220-19cd-408e-9b96-30ec18f5b049",
      "title": "Strings of Safety (Keyboard)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-032",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "2d0cd6d4-af82-4bb5-86fe-d92bdb367157",
      "title": "Strings of Safety (Percussion)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-033",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "f3191a1a-5e8d-4afe-b638-3add222d52cd",
      "title": "Strings of Safety (Strings)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-034",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "a8834ea5-200b-4206-a812-9780ef336660",
      "title": "Strings of Safety (Synth)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-035",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "f50d1a31-ef72-400a-b8ae-0367849d007d",
      "title": "Strings of Safety (FX)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-036",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "cb581673-23cc-40d6-9f9b-0f76720f0d18",
      "title": "Strings of Safety (Brass)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-037",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "d91cfb52-f0a3-4546-bf8a-2ad14c3775a5",
      "title": "Strings of Safety (Woodwinds)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-038",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }
  ]
}

The generated result is similar to the above. This completes the process of separating the vocals and instruments from the originally generated song.

¶ Add Audio Track

add_stem generates a target instrument or vocal track for the specified audio, called via POST /suno/audios.

Required: action, audio_id, stem_type.
Optional: model, prompt, title, style, negative_tags, weirdness, style_influence, audio_weight, max_mode, variety.
Billing: 0.672 Credits in normal mode; 1.344 Credits when max_mode is true.

{
  "action": "add_stem",
  "audio_id": "dead4ee5-df4d-417b-8f7e-717722fae51a",
  "stem_type": "bass",
  "model": "chirp-v6",
  "prompt": "Add warm bass guitar",
  "style": "minimal piano pulse with warm bass guitar",
  "negative_tags": "vocals",
  "variety": "normal",
  "max_mode": false,
  "async": true
}

Final-state response:

{
  "success": true,
  "task_id": "82851953-9590-4334-8bb8-ae30ccadc815",
  "trace_id": "862bbcce-1678-44ff-982d-8b439c126a5e",
  "data": [
    {
      "id": "0adc26ca-2720-4c69-b237-457a986d70e3",
          "audio_url": "https://cdn.acedata2.cloud/suno/0adc26ca-2720-4c69-b237-457a986d70e3.mp3",
      "model": "chirp-v6",
      "state": "succeeded",
      "duration": 12.8
    },
    {
      "id": "e2d39a6c-1d20-4a40-adaf-b2551815d869",
          "audio_url": "https://cdn.acedata2.cloud/suno/e2d39a6c-1d20-4a40-adaf-b2551815d869.mp3",
      "model": "chirp-v6",
      "state": "succeeded",
      "duration": 12.36
    }
  ],
  "cost": {"amount": 0.6048, "currency": "credit", "list_amount": 0.672}
}

¶ Extract Tracks

extract_stem extracts the target track from specified audio, while also returning the complementary version with that track removed, called through POST /suno/audios.

Required: action, audio_id, stem_type.
Optional: audio_format; the current public two-channel contract only supports mp3.
Billing: 1.12 Credits.

{
  "action": "extract_stem",
  "audio_id": "dead4ee5-df4d-417b-8f7e-717722fae51a",
  "stem_type": "bass",
  "audio_format": "mp3",
  "async": true
}

The data in the final-state response retains a flat audio list, and stem_sets indicates the correspondence between the target track and the complementary track:

{
  "success": true,
  "task_id": "ae9557d0-4ff7-4a35-bcde-d881e78fbfe5",
  "trace_id": "82c51a55-7627-41a5-b72b-1b9775ca25f2",
  "data": [
    {"id":"3084d7e1-4278-4733-8b56-56f7ecf3f859","title":"(Bass)","audio_url":"https://cdn.acedata2.cloud/suno/3084d7e1-4278-4733-8b56-56f7ecf3f859.mp3","model":"chirp-v6","state":"succeeded","duration":12.8,"stem_set":1},
    {"id":"19b83ca9-a51d-494f-a41d-5b0957f3295e","title":"(Without Bass)","audio_url":"https://cdn.acedata2.cloud/suno/19b83ca9-a51d-494f-a41d-5b0957f3295e.mp3","model":"chirp-v6","state":"succeeded","duration":12.8,"stem_set":1},
    {"id":"7eb431e8-f4db-4915-902e-0e89d2b3185a","title":"(Bass)","audio_url":"https://cdn.acedata2.cloud/suno/7eb431e8-f4db-4915-902e-0e89d2b3185a.mp3","model":"chirp-v6","state":"succeeded","duration":12.8,"stem_set":2},
    {"id":"495d29cc-5790-4d0a-8b95-9551a6127b61","title":"(Without Bass)","audio_url":"https://cdn.acedata2.cloud/suno/495d29cc-5790-4d0a-8b95-9551a6127b61.mp3","model":"chirp-v6","state":"succeeded","duration":12.8,"stem_set":2}
  ],
  "stem_sets": [
    {"stem_type":"bass","isolated":{"id":"3084d7e1-4278-4733-8b56-56f7ecf3f859","state":"succeeded","stem_set":1},"remainder":{"id":"19b83ca9-a51d-494f-a41d-5b0957f3295e","state":"succeeded","stem_set":1}},
    {"stem_type":"bass","isolated":{"id":"7eb431e8-f4db-4915-902e-0e89d2b3185a","state":"succeeded","stem_set":2},"remainder":{"id":"495d29cc-5790-4d0a-8b95-9551a6127b61","state":"succeeded","stem_set":2}}
  ],
  "cost": {"amount": 1.008, "currency": "credit", "list_amount": 1.12}
}

¶ Generate Sound Effects

sounds generates one-shot or loopable sound effects based on text descriptions, called through POST /suno/audios.

Required: action, sound, sound_type.
Optional: model, bpm, key, audio_format; audio_format currently only supports mp3.
sound_type: one-shot or loop.
Billing: 0.112 Credits.

{
  "action": "sounds",
  "sound": "single soft analog synth pluck, no reverb",
  "sound_type": "one-shot",
  "model": "chirp-v6",
  "bpm": 120,
  "key": "C",
  "audio_format": "mp3",
  "async": true
}

{
  "success": true,
  "task_id": "f6716546-d118-40a0-ad15-09999f9f22ba",
  "trace_id": "da4c7895-e494-4bd8-83bd-132e006c94e3",
  "data": [
    {"id":"b3cd3e7d-96e4-48ef-abde-73c7ddee8b4a","title":"single soft analog synth pluck, no reverb","audio_url":"https://cdn.acedata2.cloud/suno/b3cd3e7d-96e4-48ef-abde-73c7ddee8b4a.mp3","model":"chirp-v6","state":"succeeded","duration":10},
    {"id":"f1517867-b76a-4cdf-b006-9ce6e653e0a5","title":"single soft analog synth pluck, no reverb","audio_url":"https://cdn.acedata2.cloud/suno/f1517867-b76a-4cdf-b006-9ce6e653e0a5.mp3","model":"chirp-v6","state":"succeeded","duration":10}
  ],
  "cost": {"amount": 0.1008, "currency": "credit", "list_amount": 0.112}
}

¶ Adjust Audio Speed

adjust_speed adjusts the playback speed of the specified audio, called via POST /suno/audios.

Required: action, audio_id, speed_multiplier, title.
Optional: keep_pitch.
speed_multiplier: range 0.25–4.
Billing: 0.28 Credits.

{
  "action": "adjust_speed",
  "audio_id": "dead4ee5-df4d-417b-8f7e-717722fae51a",
  "speed_multiplier": 1.1,
  "keep_pitch": true,
  "title": "Suno contract verification speed 1.1x",
  "async": true
}

The source audio duration is 9.8 seconds, and the result at 1.1x speed is 8.909090909 seconds:

{
  "success": true,
  "task_id": "c5860fdd-76b1-40a1-b5b5-ec047e471c8a",
  "trace_id": "292ed097-3631-441c-ac80-52f326b62726",
  "data": [
    {
      "id": "02534b52-45a7-4961-834a-f473a407e62c",
      "title": "Suno contract verification speed 1.1x",
      "audio_url": "https://cdn.acedata2.cloud/suno/02534b52-45a7-4961-834a-f473a407e62c.mp3",
      "model": "chirp-v6",
      "state": "succeeded",
      "duration": 8.909090909090908
    }
  ],
  "cost": {"amount": 0.252, "currency": "credit", "list_amount": 0.28}
}

The generation model is random. The API guarantees consistent parameter semantics, task status, and response structure, but does not guarantee that different requests generate exactly the same waveform.

¶ Advanced Parameters for Custom Generation

The official version allows the use of advanced parameters weirdness==>Weirdness, style_influence==>Style Influence, and audio_weight==>Audio Influence for generation in custom mode, corresponding to the following official example:

The ranges of all advanced parameters are between 0 and 1, and the specific parameters are shown in the figure below:

After completing the fields, the following code is automatically generated:

Corresponding Python code:

import requests

url = "https://api.bytecloude.com/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "generate",
    "model": "chirp-v4-5",
    "lyric": "Hello Hello Hello ",
    "custom": True,
    "weirdness": 0.4,
    "style_influence": 0.4,
    "audio_weight": 0.4
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you can find that a result will be obtained, as follows:

{
  "success": true,
  "task_id": "2f3aa682-e1a7-43a9-9fbb-ed0ce8668a4b",
  "trace_id": "07408194-7deb-4a52-a36d-9a9a13143b5f",
  "data": [
    {
      "id": "c66e2077-7580-43f2-9937-c67a8afcd8bd",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-039",
      "lyric": "Hello Hello Hello ",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-07-10T12:54:35.199Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 187.92
    },
    {
      "id": "a922f97b-307c-4c4d-aae3-a47ba8202a10",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-040",
      "lyric": "Hello Hello Hello ",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-07-10T12:54:35.199Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 229.64
    }
  ]
}

This uses advanced parameters to generate a custom song, and the result is similar to the above.

¶ Controlling Song Duration

By default, the duration of a generated song is determined by the model itself, usually between 30 seconds and 4 minutes. If a longer or shorter final product is needed, the expected duration can be specified through the duration parameter, in seconds, with an integer value between 10 and 360.

This parameter is used for song generation in custom mode (where custom is true). It should be particularly noted that duration is a tendency prompt, not a hard constraint: the model will refer to this value when creating, but does not guarantee reaching it. In tests, the actual duration is usually significantly shorter than the expected value, and the durations of the two songs returned by the same request may also differ by several times. Even for exactly the same request, the durations obtained from multiple submissions may vary significantly. Therefore, do not use it as precise duration control; if a fixed duration is required for business purposes, please trim it yourself or retry after obtaining the final product.

Corresponding Python code:

import requests

url = "https://api.bytecloude.com/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "generate",
    "model": "chirp-v5-5",
    "custom": True,
    "title": "Under the City Lights",
    "style": "lo-fi piano",
    "lyric": "[Verse]\nSunrise creepin\nGold on the floor\n[Chorus]\nUnder the city lights\n",
    "duration": 330
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

It should be noted that the duration in the request is the expected duration, while the duration field of each song in the response data is the actual duration of that song. They have the same name but different meanings, and the actual duration is not guaranteed to equal the expected value. Lyric length is one of the main factors affecting the final product duration. If a longer final product is needed, it is recommended to also provide more complete lyrics.

The API validates that duration must be an integer from 10 to 360; it is still only a generation target, not a guarantee of the final product length.

¶ Add Insterumental Feature

In August 2025, Suno launched the Add Instrumental feature. First, you need to upload a song with a cappella and no accompaniment, so that Suno can add music for you. First, you can go to Suno Upload API to upload a song with a cappella and no accompaniment. The corresponding operation is shown in the figure below:

Then you need to record the uploaded audio_id. The specific result is shown in the figure below:

Finally, an audio_id is obtained: 92254cab-3372-4d9e-bce9-cdcfdbc39070, and then we also need to fill in the following parameters:

action: The content is underpainting.
underpainting_start: The start time for adding accompaniment to the uploaded song. The default value is 0.
underpainting_end: The end time for adding accompaniment to the uploaded song. It must be less than the total duration of the song.
audio_id: The ID of the uploaded song with a cappella and no vocals.
style: The style of the accompaniment. It is best not to use lyrics, since it is accompaniment.

After filling it in, the code is automatically generated as follows:

The corresponding Python code:

import requests

url = "https://api.bytecloude.com/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "underpainting",
    "model": "chirp-v4-5",
    "style": "Pop rap, uplifting, magnetic male vocals, piano, synth, electric guitar, driving bass, clear structure",
    "audio_id": "92254cab-3372-4d9e-bce9-cdcfdbc39070",
    "underpainting_end": 120
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you can find that you will get a result as follows:

{
  "success": true,
  "task_id": "822d2e14-c535-4d48-a4e5-1b6ab00b04a7",
  "trace_id": "257eac2c-8e4f-44d0-8454-5e215111eefa",
  "data": [
    {
      "id": "2788cd21-bd84-422d-beb5-859c60fbf5b6",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-041",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-08-27T15:25:42.548Z",
      "model": "chirp-v4",
      "state": "succeeded",
      "style": "Pop rap, uplifting, magnetic male vocals, piano, synth, electric guitar, driving bass, clear structure",
      "duration": 10.16
    },
    {
      "id": "a4bb7220-e971-4cbf-a626-b86c648bcf55",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-042",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-08-27T15:25:42.548Z",
      "model": "chirp-v4",
      "state": "succeeded",
      "style": "Pop rap, uplifting, magnetic male vocals, piano, synth, electric guitar, driving bass, clear structure",
      "duration": 2.52
    }
  ]
}

In this way, the operation of adding music to the uploaded a cappella song with no vocals is completed, and the result is similar to the above.

¶ Add Vocals Feature

In August 2025, Suno launched the Add Vocals feature. First, you need to upload a piece of pure music, so that Suno can write lyrics and generate vocal singing. First, you can go to Suno Upload API to upload a song with a cappella and no accompaniment. The corresponding operation is shown in the figure below:

Then you need to record the uploaded audio_id. The specific result is shown in the figure below:

Finally, an audio_id is obtained: 92254cab-3372-4d9e-bce9-cdcfdbc39070, and then we also need to fill in the following parameters:

action: The content is overpainting.
overpainting_start: The start time for adding vocals to the uploaded song. The default value is 0.
overpainting_end: The end time for adding vocals to the uploaded song. It must be less than the total duration of the song.
audio_id: The ID of the uploaded song with a cappella and no vocals.
custom: Custom mode must be used under this mode to enter lyrics.
lyric: The lyrics entered under custom mode.
style: The style of the accompaniment.

After filling it in, the code is automatically generated as follows:

The corresponding Python code:

import requests

url = "https://api.bytecloude.com/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "overpainting",
    "model": "chirp-v4-5",
    "lyric": "Yea your were the best I could get \\nBut I knew that it couldn’t last \\nStayed down since we were friends \\nHad to leave those thoughts in the past \\nMade like 40k just last week \\nOn top of the 20 with my babe\\ndon’t care for what niggas say",
    "custom": True,
    "audio_id": "92254cab-3372-4d9e-bce9-cdcfdbc39070",
    "overpainting_end": 120
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you can find that you will get a result as follows:

{
  "success": true,
  "task_id": "31bb250e-6614-49ec-ac85-631f224daeba",
  "trace_id": "efe8e7f3-9a65-4f13-a9f8-51e8478899df",
  "data": [
    {
      "id": "a597f945-64df-4722-a631-d436450832bd",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-043",
      "lyric": "Yea your were the best I could get \\nBut I knew that it couldn’t last \\nStayed down since we were friends \\nHad to leave those thoughts in the past \\nMade like 40k just last week \\nOn top of the 20 with my babe\\ndon’t care for what niggas say",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-08-27T15:33:51.550Z",
      "model": "chirp-v4",
      "state": "succeeded",
      "style": "",
      "duration": 105.32
    },
    {
      "id": "b41a8b91-3d88-4ebd-a6cf-732764b24954",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-044",
      "lyric": "Yea your were the best I could get \\nBut I knew that it couldn’t last \\nStayed down since we were friends \\nHad to leave those thoughts in the past \\nMade like 40k just last week \\nOn top of the 20 with my babe\\ndon’t care for what niggas say",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-08-27T15:33:51.550Z",
      "model": "chirp-v4",
      "state": "succeeded",
      "style": "",
      "duration": 148.16
    }
  ]
}

In this way, the operation of adding vocals to an uploaded a cappella song without vocals is completed, and the result is similar to the above.

¶ Remaster Feature

In December 2025, Suno introduced a new Remaster feature. This feature can regenerate songs and cannot be used across accounts. Then we also need to fill in the following parameters:

action: the content is remaster.
audio_id: the ID of the song that needs to be regenerated.
model: only v4.5+ and v5 are supported.
variation_category: only supported in v5 and above versions, and there are only 3 values: high, normal, subtle.

After filling them in, the code is automatically generated as follows:

The corresponding Python code:

import requests

url = "https://api.bytecloude.com/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "remaster",
    "variation_category": "high",
    "audio_id": "21fd46d4-45c3-4826-bec9-3f3df667902e"
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you can find that a result will be obtained, as follows:

{
  "success": true,
  "task_id": "791ee74c-9363-4352-afe7-babb19b89899",
  "trace_id": "77acda57-c3d4-4e11-a506-4f50e0609916",
  "data": [
    {
      "id": "b0515cdf-9cb5-46cd-b0fe-10a239dc9274",
      "title": "Navidad en costura  (Remastered)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-045",
      "image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-046",
      "lyric": "En Teror las clases siguen,\nni en Navidad hay parón;\ncose el grupo entre villancicos\ny un buen trocito de turrón.\nLa Popular abre sus puertas,\ny el taller suena mejor;\nhilo, aguja y canto alegre\nlo pasaremos mejor\nSeguimos en las costuras,\ncon música y diversión;\nlos alumnos comeremos\nGolosinas un montón ",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-12-04T13:09:59.936Z",
      "model": "chirp-v4",
      "state": "succeeded",
      "style": "Villancico",
      "duration": 32.2
    },
    {
      "id": "06edab94-a4f9-4c0c-abac-a2e8a97c76a8",
      "title": "Navidad en costura  (Remastered)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-047",
      "image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-048",
      "lyric": "En Teror las clases siguen,\nni en Navidad hay parón;\ncose el grupo entre villancicos\ny un buen trocito de turrón.\nLa Popular abre sus puertas,\ny el taller suena mejor;\nhilo, aguja y canto alegre\nlo pasaremos mejor\nSeguimos en las costuras,\ncon música y diversión;\nlos alumnos comeremos\nGolosinas un montón ",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-12-04T13:09:59.936Z",
      "model": "chirp-v4",
      "state": "succeeded",
      "style": "Villancico",
      "duration": 32.2
    }
  ]
}

In this way, the operation of regenerating an already generated song is completed, and the result is similar to the above.

¶ Mashup Music Generation Feature

In December 2025, Suno introduced a new Mashup feature. This feature can generate a song based on two reference songs. Then we also need to fill in the following parameters:

action: the content is mashup.
mashup_audio_ids: the IDs of the two reference songs.

After filling them in, the code is automatically generated as follows:

The corresponding Python code:

import requests

url = "https://api.bytecloude.com/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "mashup",
    "lyric": "Sambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nSambuy come, Sambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\nSambuy come back",
    "model": "chirp-v4-5",
    "custom": True,
    "instrumental": False,
    "mashup_audio_ids": ["9f102969-0024-479e-b38f-c0c5db21383d","6aebb715-701c-433f-b976-a7ff5cf16255"]
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you can see that you will get a result, as follows:

{
  "success": true,
  "task_id": "3fe070eb-2ab1-4424-909c-acfe3ca761af",
  "trace_id": "2b220382-7a84-4853-ae43-05cdcad233a9",
  "data": [
    {
      "id": "5ff751dc-0e72-4de9-a54b-2cad50984b47",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-049",
      "image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-050",
      "lyric": "Sambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nSambuy come, Sambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\nSambuy come back",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2026-01-25T15:13:30.181Z",
      "model": "chirp-v4-5",
      "state": "succeeded",
      "style": "",
      "duration": 219.08
    },
    {
      "id": "19c515c4-d7b3-4a17-8ab0-dd1ebd4861b8",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-051",
      "image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-052",
      "lyric": "Sambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nSambuy come, Sambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\nSambuy come back",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2026-01-25T15:13:30.181Z",
      "model": "chirp-v4-5",
      "state": "succeeded",
      "style": "",
      "duration": 163.12
    }
  ]
}

This completes the operation of generating a mashup based on reference songs, and the result is similar to the above.

¶ Samples: Generate Songs from Samples

The samples here refers to sampling a segment from a single audio track: select the start and end times from an existing audio track, and use that segment as sample material for creation. It is different from the Inspo inspiration creation feature below, which uses 1 to 4 complete reference audio tracks. You need to fill in the following parameters:

action: The content is samples.
samples_start: Sample start time (seconds), defaults to 0 and must not be less than 0.
samples_end: Sample end time (seconds), required and must be greater than the start time.
audio_id: The ID of the reference song to be sampled.

After filling them in, the code is automatically generated as follows:

The corresponding Python code:

import requests

url = "https://api.bytecloude.com/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "samples",
    "model": "chirp-v5",
    "lyric": "[Verse 1]\\nPhone lit up\\nHeadline in my hand\\nFeels made up\\nStill says “you won’t understand”\\nYour name\\nMy name\\nSide by side in the scroll\\nCold black text\\nOn a story I used to hold\\n\\n[Chorus]\\nYou’re breaking news\\nAnd I’m just breaking\\nFront-page truth\\nHeart still shaking\\nEverybody reads\\nWhat we already knew\\nYou’re a story now\\nAnd I’m the one you broke it to\\n\\n[Verse 2]\\nNeighbors talk\\nThrough a half-closed door\\nCoffee cools\\nOn a cracked old floor\\nYour suitcase snaps\\nLike a camera flash\\nOne last quote\\nThen you cut to black\\n\\n[Chorus]\\nYou’re breaking news\\nAnd I’m just breaking\\nFront-page truth\\nHeart still shaking\\nEverybody reads\\nWhat we already knew\\nYou’re a story now\\nAnd I’m the one you broke it to\\n\\n[Bridge]\\nIs there a line\\nWhere we rewind\\nOr just a feed\\nThat leaves us behind\\nTell me\\nWho gets\\nThe final view\\nWhen I stop trending\\nWith you\\n\\n[Chorus]\\nYou’re breaking news\\nAnd I’m just breaking\\nFront-page truth\\nHeart still shaking\\nEverybody reads\\nWhat we already knew\\nYou’re a story now\\nAnd I’m the one you broke it to (yeah)",
    "custom": True,
    "instrumental": False,
    "audio_id": "0fa07665-6b8e-4a8b-8bd3-7e0cfcdada88",
    "samples_end": 102.16,
    "samples_start": 59.88
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you can see that you will get a result, as follows:

{
    "success": true,
    "task_id": "12135a45-6384-4683-9bb1-64f19933915a",
    "trace_id": "683e559d-340e-4c72-8fae-e683442ac7e9",
    "data": [
        {
            "id": "9a0b680f-a9ea-4a36-8695-8ea777ab6ee7",
            "title": "Whistle in the Wind",
            "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-053",
            "image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-054",
            "lyric": "[Verse 1]\nPhone lit up\nHeadline in my hand\nFeels made up\nStill says “you won’t understand”\nYour name\nMy name\nSide by side in the scroll\nCold black text\nOn a story I used to hold\n[Chorus]\nYou’re breaking news\nAnd I’m just breaking\nFront-page truth\nHeart still shaking\nEverybody reads\nWhat we already knew\nYou’re a story now\nAnd I’m the one you broke it to\n[Verse 2]\nNeighbors talk\nThrough a half-closed door\nCoffee cools\nOn a cracked old floor\nYour suitcase snaps\nLike a camera flash\nOne last quote\nThen you cut to black\n[Chorus]\nYou’re breaking news\nAnd I’m just breaking\nFront-page truth\nHeart still shaking\nEverybody reads\nWhat we already knew\nYou’re a story now\nAnd I’m the one you broke it to\n[Bridge]\nIs there a line\nWhere we rewind\nOr just a feed\nThat leaves us behind\nTell me\nWho gets\nThe final view\nWhen I stop trending\nWith you\n[Chorus]\nYou’re breaking news\nAnd I’m just breaking\nFront-page truth\nHeart still shaking\nEverybody reads\nWhat we already knew\nYou’re a story now\nAnd I’m the one you broke it to (yeah)",
            "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
            "video_url": "",
            "created_at": "2026-01-31T14:34:45.043Z",
            "model": "chirp-v5",
            "state": "succeeded",
            "style": "acoustic with a hint of optimism,folk-pop,female vocals",
            "duration": 176.92
        },
        {
            "id": "66473dee-3aaf-43b2-80fd-76568b3abbb1",
            "title": "Whistle in the Wind",
            "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-055",
            "image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-056",
            "lyric": "[Verse 1]\nPhone lit up\nHeadline in my hand\nFeels made up\nStill says “you won’t understand”\nYour name\nMy name\nSide by side in the scroll\nCold black text\nOn a story I used to hold\n[Chorus]\nYou’re breaking news\nAnd I’m just breaking\nFront-page truth\nHeart still shaking\nEverybody reads\nWhat we already knew\nYou’re a story now\nAnd I’m the one you broke it to\n[Verse 2]\nNeighbors talk\nThrough a half-closed door\nCoffee cools\nOn a cracked old floor\nYour suitcase snaps\nLike a camera flash\nOne last quote\nThen you cut to black\n[Chorus]\nYou’re breaking news\nAnd I’m just breaking\nFront-page truth\nHeart still shaking\nEverybody reads\nWhat we already knew\nYou’re a story now\nAnd I’m the one you broke it to\n[Bridge]\nIs there a line\nWhere we rewind\nOr just a feed\nThat leaves us behind\nTell me\nWho gets\nThe final view\nWhen I stop trending\nWith you\n[Chorus]\nYou’re breaking news\nAnd I’m just breaking\nFront-page truth\nHeart still shaking\nEverybody reads\nWhat we already knew\nYou’re a story now\nAnd I’m the one you broke it to (yeah)",
            "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
            "video_url": "",
            "created_at": "2026-01-31T14:34:45.043Z",
            "model": "chirp-v5",
            "state": "succeeded",
            "style": "acoustic with a hint of optimism,folk-pop,female vocals",
            "duration": 177.48
        }
    ]
}

This completes the operation of generating a song from a sample; the result is similar to the above.

¶ Inspo Inspiration Creation Feature

The Inspo inspiration creation feature can generate new music based on 1 to 4 complete reference audio clips, supporting dragging or uploading audio as an inspiration source. The API uses the existing inspo action: the client provides publicly accessible audio URLs, and the service automatically completes reference audio preparation and creation, without requiring the client to separately read lyrics, style, or duration and then assemble the request. It differs from the interval sampling above, and also differs from Cover, which replicates the style of the original song. The following parameters need to be filled in when using it:

action: The content is inspo.
audio_urls: A list of URLs for reference audio; 1 to 4 publicly accessible audio addresses must be provided.
model: The model used; chirp-v6 is recommended.
prompt: Lyrics or creative prompt words (optional).
instrumental: When set to true, it generates according to a pure instrumental music request and does not use lyrics.
persona_id: Use the specified voice on service channels that support this combination; the reference audio will be bound during the preparation stage to the resource environment required by that voice.
lyric_prompt: When custom=true and no lyric is provided, it is used to automatically generate lyrics.

Note: The reference audio must be a publicly accessible audio file. If the reference audio exactly matches a known recording in the platform's music library, Suno may reject generation due to copyright verification. It is recommended to use audio you own or audio generated by Suno as an inspiration source.

Corresponding Python code:

import requests

url = "https://api.bytecloude.com/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "inspo",
    "model": "chirp-v6",
    "audio_urls": [
        "https://cdn.acedata.cloud/uploads/a0bc051f-42c2-4a46-aeb4-582dcc884ad2"
    ],
    "prompt": "Rework these references as warm acoustic folk with soft vocals"
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

A verified historical response snapshot is retained below; the snapshot used chirp-v5 at the time, while the current request example recommends chirp-v6; the returned structure is the same:

{
    "success": true,
    "task_id": "725e6b41-78d0-4adf-856c-05e81098c029",
    "trace_id": "8c2f0b3e-2f6a-4738-8b1d-c58068ca3dab",
    "data": [
        {
            "id": "20ca5628-86e0-4c32-8ae4-9f0c481e45f3",
            "title": "Inspo Demo",
            "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-057",
            "lyric": "",
            "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
            "video_url": "",
            "created_at": "2026-06-18T13:01:53.910Z",
            "model": "chirp-v5",
            "state": "succeeded",
            "style": "acoustic, folk, warm",
            "duration": 36.92
        },
        {
            "id": "8744a796-9961-45af-868d-4f3bc1c44257",
            "title": "Inspo Demo",
            "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-058",
            "lyric": "",
            "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
            "video_url": "",
            "created_at": "2026-06-18T13:01:53.910Z",
            "model": "chirp-v5",
            "state": "succeeded",
            "style": "acoustic, folk, warm",
            "duration": 84.16
        }
    ]
}

This completes the operation for inspiration creation, and the returned result is consistent with regular song generation.

¶ Asynchronous Callback

Since Suno takes a relatively long time to generate music, approximately 1–2 minutes, if the API remains unresponsive for a long time, the HTTP request will keep the connection open, resulting in additional system resource consumption, so this API also provides support for asynchronous callbacks.

The overall process is: when the client initiates a request, it additionally specifies a callback_url field. After the client initiates the API request, the API immediately returns a result containing a task_id field, which represents the current task ID. Once the task is completed, the result of the generated music will be sent in POST JSON format to the callback_url specified by the client, which also includes the task_id field, so the task results can be associated through the ID.

Next, let's understand how to operate specifically through an example.

First, the Webhook callback is a service that can receive HTTP requests. Developers should replace it with the URL of their own HTTP server. For convenience of demonstration, a public Webhook sample website https://webhook.site/ is used here. Open this website to obtain a Webhook URL, as shown in the figure:

Copy this URL, and it can be used as a Webhook. The example here is https://webhook.site/03e60575-3d96-4132-b681-b713d78116e2.

Next, we can set the callback_url field to the above Webhook URL, and fill in prompt at the same time, as shown in the figure:

Click Run, and you can find that a result is obtained immediately, as follows:

{
  "task_id": "44472ab8-783b-4054-b861-5bf14e462f60"
}

After waiting for a moment, we can observe the result of the generated song at https://webhook.site/03e60575-3d96-4132-b681-b713d78116e2, as shown in the figure:

The content is as follows:

{
  "success": true,
  "task_id": "44472ab8-783b-4054-b861-5bf14e462f60",
  "data": [
    {
      "id": "da4324e5-84b2-484b-b0e9-dd261381c594",
      "title": "Winter Whispers",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-059",
      "lyric": "[Verse]\nSnow falling gently from the sky\nChildren giggling as they pass by\nFire crackling\nCozy and warm\nChristmas spirit begins to swarm\n[Verse 2]\nTwinkling lights\nA sight to behold\nStockings hung\nWaiting to be filled with gold\nGifts wrapped with love\nPiled high\nExcitement in the air\nYou can't deny\n[Chorus]\nWinter whispers in the wind\nJoy and love it brings\nLet's celebrate this season\nWith the ones we're missing",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "https://cdn.acedata.cloud/assets/examples/gemini/04a043bd-6b23-4b4e-945c-ce48158c3eee-3a89912507c7.mp4?example=video-003",
      "created_at": "2024-05-11T07:33:05.430Z",
      "model": "chirp-v3",
      "prompt": "A song for Christmas",
      "style": "pop"
    },
    {
      "id": "b878a87b-a0db-4046-8ccd-ecd2fb3d4372",
      "title": "Winter Whispers",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-060",
      "lyric": "[Verse]\nSnow falling gently from the sky\nChildren giggling as they pass by\nFire crackling\nCozy and warm\nChristmas spirit begins to swarm\n[Verse 2]\nTwinkling lights\nA sight to behold\nStockings hung\nWaiting to be filled with gold\nGifts wrapped with love\nPiled high\nExcitement in the air\nYou can't deny\n[Chorus]\nWinter whispers in the wind\nJoy and love it brings\nLet's celebrate this season\nWith the ones we're missing",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "https://cdn.acedata.cloud/assets/examples/gemini/04a043bd-6b23-4b4e-945c-ce48158c3eee-3a89912507c7.mp4?example=video-004",
      "created_at": "2024-05-11T07:33:05.430Z",
      "model": "chirp-v3",
      "prompt": "A song for Christmas",
      "style": "pop"
    }
  ]
}

You can see that there is a task_id field in the result. The other fields are similar to those above, and task association can be achieved through this field.

Of course, we can also obtain the result through streaming calls. We only need to set the value of accept in the request header to application/x-ndjson. Below, an example input is used for demonstration:

During the waiting process, we can obtain the following output:

{"success":true,"task_id":"1af4b454-ce84-4512-a0a2-de3f8574ecd8","data":[{"id":"1f610752-f426-4fd5-89a8-ba2ad0370881","title":"Snowflakes and Mistletoe","lyric":"[Verse]\nLights are tangled on the tree again\nThe cat’s knocked over the wreath\nCookies burning in the oven too\nBut I’m still grinning through my teeth\n[Prechorus]\nSnow is falling like glitter in the sky\nI’ve got a feeling this year’s gonna fly\n[Chorus]\nSnowflakes and mistletoe\nEverywhere I go\nI know\nLove is the gift\nThe glow\nSnowflakes and mistletoe\n[Verse 2]\nGrandma’s singing a little off-key\nThe kids are laughing too loud\nThe dog’s stolen a turkey leg\nChaos is a Christmas crowd\n[Prechorus]\nBut the fire’s crackling\nWarm and bright\nAnd my heart’s a candle tonight\n[Chorus]\nSnowflakes and mistletoe\nEverywhere I go\nI know\nLove is the gift\nThe glow\nSnowflakes and mistletoe","audio_url":"","video_url":"","created_at":"2025-12-13T11:29:25.101Z","model":"chirp-v5","state":"pending","prompt":"A song for Christmas","style":"uplifting, orchestral with bells and acoustic guitar"},{"id":"d1a3109d-799b-401e-b032-4b501bcf26f3","title":"Snowflakes and Mistletoe","lyric":"[Verse]\nLights are tangled on the tree again\nThe cat’s knocked over the wreath\nCookies burning in the oven too\nBut I’m still grinning through my teeth\n[Prechorus]\nSnow is falling like glitter in the sky\nI’ve got a feeling this year’s gonna fly\n[Chorus]\nSnowflakes and mistletoe\nEverywhere I go\nI know\nLove is the gift\nThe glow\nSnowflakes and mistletoe\n[Verse 2]\nGrandma’s singing a little off-key\nThe kids are laughing too loud\nThe dog’s stolen a turkey leg\nChaos is a Christmas crowd\n[Prechorus]\nBut the fire’s crackling\nWarm and bright\nAnd my heart’s a candle tonight\n[Chorus]\nSnowflakes and mistletoe\nEverywhere I go\nI know\nLove is the gift\nThe glow\nSnowflakes and mistletoe","audio_url":"","video_url":"","created_at":"2025-12-13T11:29:25.101Z","model":"chirp-v5","state":"pending","prompt":"A song for Christmas","style":"uplifting, orchestral with bells and acoustic guitar"}]}
{"success":true,"task_id":"1af4b454-ce84-4512-a0a2-de3f8574ecd8","trace_id":"4440342a-41c4-4140-8bb1-3537a598ca2e","data":[{"id":"1f610752-f426-4fd5-89a8-ba2ad0370881","title":"Snowflakes and Mistletoe","image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-073","image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-074","lyric":"[Verse]\nLights are tangled on the tree again\nThe cat’s knocked over the wreath\nCookies burning in the oven too\nBut I’m still grinning through my teeth\n[Prechorus]\nSnow is falling like glitter in the sky\nI’ve got a feeling this year’s gonna fly\n[Chorus]\nSnowflakes and mistletoe\nEverywhere I go\nI know\nLove is the gift\nThe glow\nSnowflakes and mistletoe\n[Verse 2]\nGrandma’s singing a little off-key\nThe kids are laughing too loud\nThe dog’s stolen a turkey leg\nChaos is a Christmas crowd\n[Prechorus]\nBut the fire’s crackling\nWarm and bright\nAnd my heart’s a candle tonight\n[Chorus]\nSnowflakes and mistletoe\nEverywhere I go\nI know\nLove is the gift\nThe glow\nSnowflakes and mistletoe","audio_url":"https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3","video_url":"","created_at":"2025-12-13T11:29:25.101Z","model":"chirp-v5","state":"succeeded","prompt":"A song for Christmas","style":"uplifting, orchestral with bells and acoustic guitar","duration":129.92},{"id":"d1a3109d-799b-401e-b032-4b501bcf26f3","title":"Snowflakes and Mistletoe","image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-075","image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-076","lyric":"[Verse]\nLights are tangled on the tree again\nThe cat’s knocked over the wreath\nCookies burning in the oven too\nBut I’m still grinning through my teeth\n[Prechorus]\nSnow is falling like glitter in the sky\nI’ve got a feeling this year’s gonna fly\n[Chorus]\nSnowflakes and mistletoe\nEverywhere I go\nI know\nLove is the gift\nThe glow\nSnowflakes and mistletoe\n[Verse 2]\nGrandma’s singing a little off-key\nThe kids are laughing too loud\nThe dog’s stolen a turkey leg\nChaos is a Christmas crowd\n[Prechorus]\nBut the fire’s crackling\nWarm and bright\nAnd my heart’s a candle tonight\n[Chorus]\nSnowflakes and mistletoe\nEverywhere I go\nI know\nLove is the gift\nThe glow\nSnowflakes and mistletoe","audio_url":"https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3","video_url":"","created_at":"2025-12-13T11:29:25.101Z","model":"chirp-v5","state":"succeeded","prompt":"A song for Christmas","style":"uplifting, orchestral with bells and acoustic guitar","duration":127.16}]}

The streaming response will sequentially push processing statuses and the final result for the same task_id; above, only the first and final two real responses are retained, with repeated intermediate updates omitted.

¶ Error Handling

If an error occurs, you will receive an error message similar to the following:

{
  "success": false,
  "error": {
    "code": "forbidden",
    "message": "Song Description contained artist name: eminem"
  },
  "trace_id": "9bb7c2f4-3b7b-4965-b50a-f663874b1b6f",
  "task_id": "9bb3a2a6-c438-436d-a9f3-fa466abc077c"
}

Below is the list of HTTP Status Code, error.code, and error.message:

Note: Quotas and error messages | Status Code | error.code | ----------- | ----------------------------- | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 403 | forbidden | 403 | forbidden | 403 | forbidden | 403 | forbidden | 403 | forbidden | 403 | forbidden | 403 | forbidden | 403 | forbidden | 403 | forbidden | 403 | forbidden | 500 | api_error | 500 | api_error | 500 | api_error | 500 | api_error | 500 | api_error | 500 | suno_processing_un | 500 | suno_model_unavailable | 500 | suno_processing_failed | 504 | timeout may vary across different upstream accounts. Usually, chirp-v3-5/chirp-v4 have lower style limits (200), while chirp-v4-5 and above usually support up to 1000; when an older upstream is hit, compatibility messages such as Tags too long. or style must be less than or equal 120 may appear. | error.message | | ------------------------------------------------------------------------------------------ | | The song id does not exist or has been taken offline. | | Prompt too long. | | Tags too long. | | Uploaded audio matches existing work of art. | | instrumental must be a boolean | | Title too long. | | Topic too long. | | style must be less than or equal 120 | | custom must be a boolean | | audio_id is required when extend audio | | continue_at is required when extend audio | | continue_at must be a number greater than 0 | | lyric is required when extend audio and instrumental is false | | prompt is required when generate audio | | lyric is required when generate custom audio | | Prompt likely malformed | | Prompt likely copyrighted | | Prompt contained inappropriate material | | Song Description flagged for moderation | | Song Description contained artist name | | Tags contained artist name | | Lyrics contained copyrighted material | | Song Description contained producer tag | | Generic openAI error | | Prompt flagged for moderation | | Unable to generate lyrics from song description | | job failed with unknown error | | no available worker in system | | service under maintenance, generation paused | | the account may have been offline | available | Music processing is unavailable. Contact support with the trace ID. | | The selected model is unavailable for this operation. Contact support with the trace ID. | | Music processing returned no audio. Contact support with the trace ID. | | timeout while waiting for audio generation |