Audio

Upload and Cover Audio audio

Upload a reference clip and let Suno generate a cover/remake in a chosen style.

Category: Music · suno-upload-and-cover

How to use & limits

Uploads a reference clip and generates a cover/remake in a new style, preserving the melody.
Input: source audio URL (max 8 minutes).
Simple mode: prompt describes the transformation (up to 500 characters). Custom mode requires custom_mode=true, style and title; lyrics/prompt contains lyrics for vocal output.
model_version: v4, v4_5 (default), v4_5all, v4_5plus, v5 or v5_5. V4_5ALL accepts sources up to 1 minute. Personas require custom mode and V5/V5_5; duration 10–360 requires custom mode and V5_5. Rejected tasks report an error code and actual refund.

Capabilities

What this model supports, straight from the schema — no pricing, no infrastructure detail.

Capability	Value
`music` Music	Yes
`source_audio_required` Source audio required	Yes

Parameters

Fields accepted in params (or first-class, where applicable) for POST /generations.

Name	Label	Type	Required	Default	Options	Min / Max	Description
`model_version`	Version	select	Optional	v4_5	v4 · v4_5 · v4_5all · v4_5plus · v5 · v5_5	—	Version: v4, v4_5 (default), v4_5all, v4_5plus, v5 or v5_5.
`custom_mode`	Custom mode	boolean	Optional	—	—	—	—
`instrumental`	Instrumental	boolean	Optional	—	—	—	—
`title`	Title (required in custom mode)	text	Optional	—	—	—	—
`lyrics`	Lyrics (custom vocal mode)	textarea	Optional	—	—	—	—
`negative_tags`	Styles to exclude	text	Optional	—	—	—	—
`vocal_gender`	Vocal gender	select	Optional	—	m · f	—	—
`audio_weight`	Audio preservation (0–1)	number	Optional	—	—	—	—
`style_weight`	Style strength (0–1)	number	Optional	—	—	—	—
`weirdness_constraint`	Creative deviation (0–1)	number	Optional	—	—	—	—
`persona_id`	Authorized persona ID (custom V5/V5_5)	text	Optional	—	—	—	—
`persona_model`	Persona mode	select	Optional	—	style_persona · voice_persona	—	—
`duration`	Duration (custom V5_5 only)	number	Optional	—	—	10 – 360	—
`style`	Style / genre	text	Optional	—	—	—	New style/genre for the cover.
`audio_url`	Source audio URL	url	Required	—	—	—	URL of the reference audio (max 8 min).
`prompt`	Prompt	textarea	Optional	—	—	—	Lyrics or description of the desired transformation.

Example request

bash

curl -X POST https://caranguejo.art/api/v1/dev/generations \
  -H "Authorization: Bearer $CK" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "suno-upload-and-cover",
  "prompt": "Intimate acoustic remake of the original track.",
  "params": {
    "style": "acoustic, unplugged",
    "model_version": "v4_5"
  }
}'

javascript

const res = await fetch("https://caranguejo.art/api/v1/dev/generations", {
  method: "POST",
  headers: {
    "Authorization": "Bearer " + process.env.CK,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "suno-upload-and-cover",
    "prompt": "Intimate acoustic remake of the original track.",
    "params": {
      "style": "acoustic, unplugged",
      "model_version": "v4_5"
    }
  }),
});
const { data } = await res.json();

Example response

json

{
  "id": "9f0c1a7e-…",
  "object": "generation",
  "model": "suno-upload-and-cover",
  "type": "audio",
  "status": "completed",
  "output": {
    "assets": [
      {
        "url": "https://media.caranguejo.art/outputs/example.mp3",
        "type": "audio"
      }
    ]
  }
}

The job's real cost is returned as credits_charged on the completed response — check GET /balance for the account balance.

Common errors for this job type:

`insufficient_credits`	Account balance can't cover the job cost.
`content_policy_violation`	Prompt or media rejected by content policy.
`generation_timeout`	The job exceeded the maximum processing time.
`rate_limited`	Too many requests per minute.
`invalid_input`	A required parameter is missing or outside the model's schema.
`generation_failed`	Generic processing failure.