Replace Music Section

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": {
    "full_lyrics": "\u2026",
    "infill_end_s": "\u2026",
    "infill_start_s": "\u2026",
    "prompt": "\u2026",
    "tags": "\u2026",
    "title": "\u2026"
  },
  "model": "suno-replace-section"
}

Input parameters

Name	Type	Required	Description
`prompt`	string	required	The lyrics after replacement. Required.
`tags`	string	required	Style tags for the music, such as jazz or electronic. Required.
`title`	string	required	The title of the music. Required.
`negative_tags`	string	optional	Music styles to exclude, used to prevent specific stylistic elements from appearing in the replacement section.
`infill_start_s`	number	required	The point in time, in seconds, at which replacement starts, rounded to 2 decimal places. Required. Must be less than infill_end_s, and the difference between infill_end_s and infill_start_s must be at least 10 seconds.
`infill_end_s`	number	required	The point in time, in seconds, at which replacement ends, rounded to 2 decimal places. Required. Must be greater than infill_start_s, and the difference between infill_end_s and infill_start_s must be at least 10 seconds.
`full_lyrics`	string	required	The complete modified lyrics, combining the modified and unmodified lyrics. Required. This parameter contains the complete lyrics text that will be used for the entire song after section replacement.
`lyrics`	string	optional	Lyrics for the replaced segment. Optional. - V6, V6_MINI, and V6_WILD: Maximum 5000 characters.
`vocal_gender`	string	optional	Vocal gender preference. Optional. 'm' for male, 'f' for female. Based on practice, this parameter can only increase the probability but cannot guarantee adherence to male/female voice instructions. Values: `m`, `f`
`style_weight`	number	optional	Adherence strength to specified style. Optional. Range 0–1, up to 2 decimal places.
`weirdness_constraint`	number	optional	Controls experimental/creative deviation level. Optional. Range 0–1, up to 2 decimal places.
`audio_weight`	number	optional	Relative weight of audio elements. Optional. Range 0–1, up to 2 decimal places.
`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`
`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	Persona model. Optional. Use `style_persona` for Generate Persona IDs, or `voice_persona` for Suno Voice IDs. Default: `style_persona`. Available for V5 (Discontinued), V5_5 (Discontinued), V6, V6_MINI, and V6_WILD. Values: `style_persona`, `voice_persona` Default: `style_persona`

Pricing

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