Mistral AI launches Voxtral 3 voice agent stack
Mistral AI introduced Voxtral 3, a family of language models designed for real‑time voice agents. The stack bundles a speech‑to‑text model called Voxtral Small Transcribe 3, a text‑to‑speech model named Voxtral Mini TTS 3, and a voice‑agent SDK built on LiveKit, allowing a single streaming pipeline that listens, thinks, uses tools, and speaks.
Key points
- Voxtral 3 bundles Voxtral Small Transcribe 3 STT and Voxtral Mini TTS 3 with a LiveKit‑based SDK for real‑time voice agents.
- Transcription covers >50 languages; TTS supports >35 languages and 50 dialects with emotional adaptation.
- Pricing starts at $0.0035 per minute for transcription; can run on‑premises or via EU‑hosted APIs.
Mistral says transcription supports more than 50 languages, while the TTS component covers over 35 languages and 50 dialects with emotional adaptation. Agents can call external systems during live conversations, for example to book appointments or check invoices. The system can be deployed on a customer’s own infrastructure or accessed through EU‑hosted APIs to keep data under the user’s control. Pricing starts at $0.0035 per minute for transcription, and further details are available in the documentation.
Mistral AI launches Voxtral 3, a full voice agent stack that listens, thinks, and talks in real time
The Decoder · 20 October 2026
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