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POST

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Overview

Creates a custom voice by cloning from an uploaded audio file. The voice is available immediately after creation.

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Settings by Model

Settings vary depending on the model you choose. The modelId determines which provider (ElevenLabs or Minimax) handles TTS at generation time.
Model: eleven_v3Settings:
  • voiceStability (0-1, default: 0.5) — Higher = more consistent, lower = more expressive
  • voiceSimilarity (0-1, default: 0.5) — Clarity and similarity to the original voice
  • voiceStyle (0-1, default: 0.0) — Style exaggeration. Higher values are more expressive but slower.
  • voiceSpeed (0.7-1.2, default: 1.0) — Playback speed
Speaker Boost is not available for this model.
Models: eleven_multilingual_v2 (recommended), eleven_multilingual_v1, eleven_monolingual_v1, eleven_turbo_v2, eleven_turbo_v2_5, eleven_flash_v2_5Settings:
  • voiceStability (0-1, default: 0.8) — Higher = more consistent, lower = more expressive
  • voiceSimilarity (0-1, default: 0.5) — Clarity and similarity to the original voice
  • voiceStyle (0-1, default: 0.0) — Style exaggeration. Higher values are more expressive but slower.
  • voiceSpeed (0.7-1.2, default: 1.0) — Playback speed
  • speakerBoost (boolean, default: true) — Enhances speaker similarity
Models: speech-2.8-hd (recommended), speech-2.8-turbo, speech-2.6-hd, speech-2.6-turbo, speech-2.5-hd-preview, speech-2.5-turbo-preview, speech-02-hd, speech-02-turboSettings:
  • voiceSpeed (0.7-1.2, default: 1.0) — Playback speed
  • languageBoost (enum, default: “auto”) — Boost a specific language for better pronunciation
  • emotion (enum, default: “auto”) — Voice emotion: happy, sad, angry, fearful, disgusted, surprised, neutral

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Default Model

If modelId is omitted, the default is speech-2.5-hd-preview (Minimax).

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Audio Requirements

  • Must be accessible via HTTPS URL
  • Duration must be between 30 seconds and 4 minutes
  • Supported formats: MP3, WAV, M4A

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Voice Status

The created voice is returned with status IDLE, meaning it is ready to be used in video generation immediately.

Authorizations

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x-api-key
string
header
required

API key to be included in the x-api-key header

Body

application/json
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name
string
required

Name of the voice

Required string length: 1 - 256
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audioUrl
string<uri>
required

HTTPS URL to the audio file for voice cloning (MP3, WAV, M4A). Duration must be between 30 seconds and 4 minutes.

Pattern: ^https://.*
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modelId
enum<string>

Voice model to use for TTS. Determines which provider (ElevenLabs or Minimax) and which settings are available.

Available options:
eleven_multilingual_v2,
eleven_multilingual_v1,
eleven_monolingual_v1,
eleven_turbo_v2,
eleven_turbo_v2_5,
eleven_flash_v2_5,
eleven_v3,
speech-02-hd,
speech-02-turbo,
speech-2.5-hd-preview,
speech-2.5-turbo-preview,
speech-2.6-hd,
speech-2.6-turbo,
speech-2.8-hd,
speech-2.8-turbo
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settings
object

Model-specific voice settings. Available fields depend on the chosen modelId. See the Settings by Model section for details.

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language
enum<string>
Available options:
ENGLISH,
SPANISH,
FRENCH,
PORTUGUESE,
GERMAN,
RUSSIAN,
HINDI,
CHINESE,
DUTCH,
ARABIC,
POLISH,
BULGARIAN,
JAPANESE,
ITALIAN
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gender
enum<string>
Available options:
MALE,
FEMALE

Response

Voice created successfully

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id
string<uuid>
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name
string
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createdAt
string<date-time>
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updatedAt
string<date-time>
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status
string
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sampleUrl
string
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language
enum<string>
Available options:
ENGLISH,
SPANISH,
FRENCH,
PORTUGUESE,
GERMAN,
RUSSIAN,
HINDI,
CHINESE,
DUTCH,
ARABIC,
POLISH,
BULGARIAN,
JAPANESE,
ITALIAN
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gender
enum<string>
Available options:
MALE,
FEMALE