Mistral Voxtral 3
Voxtral 3 is Mistral's new family of speech models plus a voice agent SDK: Transcribe 3 speech-to-text in 50+ languages with diarization and context biasing, Mini TTS 3 expressive text-to-speech in 35+ languages, and a LiveKit-based SDK that chains listening, reasoning, tool calls and speech.
Why it matters
For businesses building phone or web voice agents, such as contact centers and service desks, it bundles transcription, speech and tool-calling into one pipeline that can run on Mistral's EU-hosted API or on their own infrastructure.
Highlights
- Voxtral Small Transcribe 3 handles 50+ languages with speaker diarization, keyphrase context biasing and end-of-turn detection; Mistral reports it beats Whisper, Scribe v2 and Gemini 3.5 Transcribe on its benchmarks.unverified
- Voxtral Realtime Transcribe 3 targets sub-500 ms transcription in 35+ languages for live agents.
- Voxtral Mini TTS 3 adjusts emotion, pace and emphasis from context, covers 35+ languages and 50+ dialects, and supports voice cloning from about 30 minutes of audio (Pro Voice).
- The voice agent SDK is built on LiveKit and runs speech in, reasoning with a model like Mistral Small, tool calls and speech out as one streaming pipeline.
- Published API prices: Mini Transcribe 3 batch $0.0035/min, Realtime $0.008/min, Small Transcribe 3 $0.0040/min, Mini TTS 3 $13 per 1M characters, voice agent API from $0.04/min.
Taken from the project's own README, docs or launch page. Claims about speed or accuracy are the maker's unless stated otherwise.
Worth knowing: Benchmark comparisons are Mistral's own evaluations. Voice cloning raises consent questions; only clone voices you have rights to.
Quick facts
| Pricing | Mini Transcribe 3 $0.0035/min (batch), Realtime 3 $0.008/min, Small Transcribe 3 $0.0040/min, Mini TTS 3 $13/1M characters; voice agent API $0.04/min with Mistral Small 4 or $0.08/min with a larger model; on-prem by contacting sales |
|---|---|
| Free or paid | Paid (usage-based) |
| License | Proprietary API; self-deployment available (license terms not checked)not verified |
| Language | REST API / SDK; Model |
| Platform | Mistral EU-hosted API, or self-deployment on your own infrastructure or private cloud |
| GitHub stars | n/a (not a GitHub project) |
| Maker | Mistral AI |
Links
- Official site: https://mistral.ai/news/voxtral-3
- Docs: https://docs.mistral.ai/
Related ranking
See how established tools compare in Best Voice & Text-to-Speech. New releases aren't scored until we review them against the rubric.
What we couldn't verify
- quick_facts.license (self-deployment terms and whether weights are open)
- highlights[0] (benchmark claims are Mistral's)
Checked 2026-10-22 from the model's own pages. Prices and star counts change, so confirm on the official site. Listing here is not a ranking or an endorsement.
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