Mistral · Voice model

Voxtral Mini TTS

mistralai/voxtral-mini-tts-2603

Voice

Released Apr 19, 2026

Voxtral Mini TTS is Mistral's text-to-speech model featuring zero-shot voice cloning and multilingual support. It converts text input into natural-sounding audio output.

Specifications

Input: text, up to 20,000 characters per call
Output: mp3 (default) or raw pcm
Voice: provider voice ids via `voice`; omitted = the provider's default when it has one
Billing: per character of input text

Use it

POST /api/v1/audio/speech · MCP speak · full reference

curl https://omnirail.org/api/v1/audio/speech \
  -H "Authorization: Bearer $OMNIRAIL_KEY" -H "Content-Type: application/json" \
  -d '{"model":"mistralai/voxtral-mini-tts-2603","input":"Hello from OmniRail. Every model, one key.","response_format":"mp3"}' \
  --output hello.mp3