Extend Music

music Suno price on request

Request

POST https://app.video-blade.com/api/v1/generations
X-API-Key: vb_…
Content-Type: application/json

{
  "callback_url": "https://your-app.example/callbacks/video-blade",
  "input": {
    "audio_id": "\u2026",
    "model": "V6"
  },
  "model": "suno-extend-music"
}

Input parameters

Name	Type	Required	Description
`audio_id`	string	required	Unique identifier of the audio track to extend. Required for all extension requests.
`prompt`	string	optional	Lyrics for the extended audio. Optional. - Used as lyrics only when `lyrics` is not provided. If `lyrics` is present, `prompt` is not used as lyrics. - V6, V6_MINI, and V6_WILD: Maximum 5000 characters. - Not required. Source audio (`audio_id`) is enough to generate. - Do not pass this parameter when `instrumental` is `true`.
`style`	string	optional	Music style specification for the extended audio. Optional. - Not required. Source audio (`audio_id`) is enough to generate. - Character limits by model: - V4（Discontinued）: Maximum 200 characters - V4_5 & V4_5PLUS（Discontinued）: Maximum 1000 characters - V4_5ALL（Discontinued）: Maximum 1000 characters - V5_5 & V5（Discontinued）: Maximum 1000 characters - V6, V6_MINI, and V6_WILD: Maximum 1000 characters - Should typically align with the original audio's style for best results.
`title`	string	optional	Title for the extended music track. Optional. - Maximum 100 characters. - Displayed in player interfaces and filenames.
`continue_at`	number	optional	The time point (in seconds) from which to start extending the music. - Value range: greater than 0 and less than the total duration of the generated audio. - Specifies the position in the original track where the extension should begin.
`model`	string	required	The AI model version to use for generation. - Required for all requests. - Available options: - `V6_WILD`：Pushes creative boundaries for bolder, more distinctive musical expression. - `V6_MINI`：Lightweight and fast, balancing quality and speed for effortless creation. - `V6`：Greater musical expression with more natural vocals and richer details. - `V5_5`（Discontinued）：Custom Models Tailored to Your Unique Taste. - `V5`（Discontinued）: Superior musical expression, faster generation. - `V4_5PLUS`（Discontinued）: V4.5+ delivers richer sound, new ways to create, max 8 min. - Values: `V4`, `V4_5`, `V4_5PLUS`, `V4_5ALL`, `V5`, `V5_5`, `V6`, `V6_WILD`, `V6_MINI` Default: `V6`
`negative_tags`	string	optional	Music styles or traits to exclude from the extended audio. Optional. Use to avoid specific undesired characteristics.
`vocal_gender`	string	optional	Vocal gender preference. Optional. 'm' denotes a male voice, and 'f' denotes a female voice. In practice, this parameter only influences the probability and does not guarantee strict adherence to the gender instruction. This parameter is not required if `instrumental` is set to `true`. Values: `m`, `f`
`style_weight`	number	optional	Strength of adherence to the specified style. Optional. Range 0–1, up to 2 decimal places.
`weirdness_constraint`	number	optional	Controls experimental/creative deviation. Optional. Range 0–1, up to 2 decimal places.
`audio_weight`	number	optional	Balance weight for audio features vs. other factors. Optional. Range 0–1, up to 2 decimal places.
`persona_id`	string	optional	Persona ID or Voice ID to apply to the generated music. Optional. Use this to apply a specific persona style to your music generation. To generate a Persona ID, use the Generate Persona endpoint to create a personalized music Persona based on generated music. To generate a Voice ID, use the Generate Voice endpoint.
`persona_model`	string	optional	The persona model is only applicable to the V5 (deactivated), V5.5 (deactivated), V6, V6_MINI, and V6_WILD models. Values: `style_persona`, `voice_persona`
`instrumental`	boolean	optional	Indicates whether it is an instrumental track. If true, passing the `lyrics`, `prompt`, and `vocal_gender` parameters is prohibited. Default: `False`
`lyrics`	string	optional	Lyrics for the extended audio. Optional. - Takes priority over `prompt` as lyrics. If omitted, `prompt` is used as lyrics when provided. - V6, V6_MINI, and V6_WILD: Maximum 5000 characters. - Not required. Source audio (`audio_id`) is enough to generate. - Do not pass this parameter when `instrumental` is `true`.
`variety`	integer	optional	Controls the diversity and stylistic variation of generated results. Optional. Integer range 0–4, default 1. - `0`: off (exact style) — fully off, strictly the same style - `1`: normal (balanced variety) — default, balances stability and diversity - `2`: high (distinct styles) — produces results with clearly different styles - `3`: extra (bold exploration) — higher variation, encourages bold exploration of different styles - `4`: max (unreasonably varied) — maximum diversity; results may differ in style very significantly Default: `1`

Pricing

Price on request; the charge is settled from actual consumption with the music coefficient ×2.0. See Pricing & tokens.