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Frontier AI LLMs, assistants, agents, services | Mistral AI

Mistral AI has released Voxtral TTS, its first text-to-speech model with 4B parameters, supporting 9 languages with low latency and emotional expressiveness. The model achieves state-of-the-art naturalness in human evaluations, adapts to new voices with just 3 seconds of audio, and is available via API and open weights.

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Frontier AI LLMs, assistants, agents, services | Mistral AI
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Key points

  • Voxtral TTS is Mistral AI's first text-to-speech model, lightweight with 4B parameters.
  • Supports 9 languages with realistic, emotionally expressive speech and dialect variations.
  • Outperforms ElevenLabs Flash v2.5 in naturalness and matches ElevenLabs v3 quality in human evaluations.
  • Zero-shot voice adaptation with as little as 3s reference audio, and cross-lingual voice transfer capability.

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