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POST
/
api
/
v3
/
minimax
/
voice-clone
Voice Clone
curl --request POST \
  --url https://gptproto.com/api/v3/minimax/voice-clone \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: application/json' \
  --data '{
  "audio": "<string>",
  "custom_voice_id": "<string>",
  "model": "<string>",
  "need_noise_reduction": "<string>",
  "need_volume_normalization": true,
  "accuracy": 123,
  "text": "<string>"
}'
{
  "error": {
    "message": "Invalid signature",
    "type": "401"
  }
}

​
Overview

MiniMax Voice Clone is a state-of-the-art voice synthesis model developed by MiniMax. It enables high-quality voice cloning from a short reference clip, producing speech that closely mimics the tone, accent, and personality of the original speaker.

​
Authentication

This endpoint requires authentication using a Bearer token.
​
Authorization
string
default:"sk-***********"
required
Your API key in the format: YOUR_API_KEY

​
Request Body

​
audio
string
The uploaded file is cloned and supports formats such as MP3, M4A, and WAV.
​
custom_voice_id
string
required
Custom user-defined ID. Minimum 8 characters; must include letters and numbers and start with a letter (e.g., gptproto0001). Duplicate voice-ids will throw an error.
​
model
string
default:"speech-2.5-hd-preview-voice-clone"
required
Specify the TTS model to be used for the preview. This is only a preview after cloning. Once the model is generated, any Minimax Turbo or HD voice model can be used for inference.
​
need_noise_reduction
string
Enable noise reduction. Default is false (no noise reduction).
​
need_volume_normalization
boolean
default:"false"
Specify whether to enable volume normalization. If not provided, the default value is false.
​
accuracy
number
default:"0.7"
0.00 ~ 1.00 .Uploading this parameter will set the text validation accuracy threshold, with a value range of [0,1]. If not provided, the default value for this parameter is 0.7.
​
text
string
Text for audio preview. Limited to 2000 characters.

​
Request Example

curl -X POST "https://gptproto.com/api/v3/minimax/voice-clone" \
  -H "Authorization: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "accuracy": 0.7,
  "audio": "https://d1q70pf5vjeyhc.cloudfront.net/media/92d2d4ca66f84793adcb20742b15d262/audios/1752727142784562094_VRSOK53Y.mp3",
  "custom_voice_id": "Alice-jiuhao-2",
  "model": "speech-2.5-hd-preview-voice-clone",
  "need_noise_reduction": false,
  "need_volume_normalization": false,
  "text": "This is a preview of your cloned voice. I hope you enjoy it!"
}'

​
Response

{
  "error": {
    "message": "Invalid signature",
    "type": "401"
  }
}