Minimax

Minimax TTS provider — expressive voices with speed, volume, and pitch control.

Voice format: minimax.<Model>.<VoiceId>

voice_id can be a system voice (pre-built) or a cloned voice from the Voice Design Lab (organization-scoped).

Voice Samples

Voice	Gender	Sample
Minimax.speech-2.8-turbo.English_expressive_narrator	Male
Minimax.speech-2.8-turbo.English_radiant_girl	Female

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WebSocket

Query Parameters

Parameter	Type	Default	Description
audio_format	string	mp3	mp3, linear16.
sample_rate	integer	24000	8000, 16000, 22050, 24000, 32000, 44100.

Voice Settings

Field	Type	Default	Description
speed	float	—	Playback speed multiplier.
vol	float	—	Volume level.
pitch	integer	—	Pitch adjustment.
language_boost	string	—	Language emphasis for multilingual synthesis.

{
  "text": " ",
  "voice_settings": {
    "speed": 1.1,
    "vol": 1.0,
    "pitch": 0
  }
}

REST API

Fields

Field	Type	Default	Description
speed	float	—	Playback speed multiplier.
vol	float	—	Volume level.
pitch	integer	—	Pitch adjustment.
language_boost	string	—	Language emphasis.
output_type	string	binary_output	binary_output, base64_output, or audio_id.

Response

Default (binary_output): chunked audio bytes.

With output_type: "base64_output": JSON with base64-encoded audio.

With output_type: "audio_id": JSON with an audio_url for deferred retrieval.