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Mistral releases Voxtral 3 speech models and a voice agent SDK

Mistral's page lists transcription in 50 languages from $0.0035 a minute, a text-to-speech model and a LiveKit-based voice agent SDK; the benchmark comparisons are Mistral's own.

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Check our sources · 7 facts from 1 source
Illustration: A desktop audio mixing unit with faders and a dial; its green clip-on module stands for the voice agent kit added to the speech models.Illustration made with AI for ai notis
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Key points

  1. Mistral lists Voxtral Mini Transcribe 3 (batch) at $0.0035 per minute, Voxtral Small Transcribe 3 at $0.0040 and the realtime model at $0.008 per minute.
  2. Mistral says Voxtral Small Transcribe 3 outperforms Whisper, Scribe v2 and Gemini 3.5 Transcribe, with a diarization cpWER of 18.4%; these are its own evaluations.
  3. The voice agent API costs $0.04 per minute with Mistral Small 4 and $0.08 with a larger model; Voxtral 3 runs on Mistral's EU-hosted API or on your own infrastructure.

What happened

Mistral AI, a French company, describes Voxtral 3 as speech models plus a voice agent SDK. It is available through Mistral's EU-hosted API or for self-deployment, and the page gives per-minute prices for each model. The comparisons with Whisper and other systems are Mistral's own evaluations. The page does not say whether the weights are public and gives no licence.

What it means for you

Our view

This is a launch with prices, and the comparisons with other systems are Mistral's own evaluations. The per-minute prices let you cost a transcription or voice-agent workload before testing, and the EU-hosted API matters if your data must stay in Europe.

Run your own recordings, with your languages and accents, through Voxtral Small Transcribe 3 and your current system, and compare the errors before you move any workload.

It adds no new facts.

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Check our sources

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1 Voxtral 3Mistral AI · 20 Oct 2026 · 7 facts Open the source archived copy

  1. Mistral's Voxtral 3 page describes speech models and a voice agent SDK built on LiveKit that pairs them with a general model, like Mistral Small; its price list names Mistral Small 4 for the voice agent API.

    Toned down to what the source says
    Voxtral 3 introduces a voice agent SDK, built on LiveKit, that runs speech in, reasoning, and speech out as one streaming pipeline. ... a general model—like Mistral Small—reasons and calls tools ... Voice agent API with Mistral Small 4 for reasoning 0.04$/min
    cite

  2. The page says the supported transcription languages are expanded to 50.

    The supported list of languages is expanded to 50, including 24 official EU languages and many low-resource Asian and Indic languages.
    cite

  3. The page lists Voxtral Mini Transcribe 3 (batch) at $0.0035 per minute, Voxtral Small Transcribe 3 at $0.0040 per minute and Voxtral Mini Transcribe Realtime 3 at $0.008 per minute.

    Voxtral Mini Transcribe 3 (batch) $0.0035/min Voxtral Mini Transcribe Realtime 3 $0.008/min Voxtral Small Transcribe 3 $0.0040/min
    cite

  4. The page lists Voxtral Mini TTS 3 at $13 per 1M characters, and the voice agent API at $0.04 per minute with Mistral Small 4 and $0.08 per minute with a larger model.

    Voxtral Mini TTS 3 $13/1M chars Voice agent API with Mistral Small 4 for reasoning 0.04$/min Voice agent API with larger model 0.08$/min
    cite

  5. The page says Voxtral 3 is available today through Mistral's EU-hosted API or for self-deployment on the customer's own infrastructure.

    Available today through Mistral's EU-hosted API or for self-deployment on your own infrastructure
    cite

  6. Mistral says Voxtral Small Transcribe 3 outperforms Whisper, Scribe v2 and Gemini 3.5 Transcribe, and reports a diarization cpWER of 18.4%, the lowest among the systems it compared; these are Mistral's own evaluations.

    It outperforms Whisper, Scribe v2 and Gemini 3.5 Transcribe. ... Diarization Concatenated Minimum Permutation WER – lower is better ... 18.4% ... Voxtral Small Transcribe 3
    cite

  7. The page claims sub-500ms latency for the realtime transcription model.

    delivering high-quality transcriptions at sub-500ms latency across 40+ languages
    cite

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