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AI release notes

Mistral AI's official changelog: new Mistral models and changes for developers.

Compiled by the Toolstash team · Updated

  1. New model

    Z.ai GLM 5.3 Flash is now available

    A multimodal 320B-parameter (18B active) Mixture-of-Experts model from Z.ai with a 1M-token context window. Built for developer agent workflows, visual coding, and complex tool-use tasks. Pricing: $0.15/M input tokens, $0.03/M cached input, $0.50/M output tokens.

  2. New modelAnnouncement

    We released the Voxtral 3 audio family, our next generation of speech-to-text and text-to-speech models

    All four models are in Public Preview. Voxtral TTS 3 (voxtral-mini-tts-3-0): text-to-speech with zero-shot voice cloning, streaming, and contextual delivery. Voxtral Mini Transcribe 3 (voxtral-mini-transcribe-3-0): offline transcription and diarization with timestamps. Voxtral Mini Transcribe Realtime 3 (voxtral-mini-transcribe-realtime-3-0): real-time transcription. Voxtral Small Transcribe 3 (voxtral-small-transcribe-3-0): offline transcription and diarization with timestamps.

  3. New model

    Mistral Large 4 is now available in Public Preview

    For details, see the Mistral Large 4 model card. Mistral Large 4 is an open-weight, general-purpose multimodal model with a Mixture-of-Experts architecture and a 1M context window. Open weights are coming soon. Launch pricing: 50% off for 2 weeks.

  4. New model

    Z.ai GLM 5.3 is now Generally Available

    Z.ai GLM 5.3 (zai-glm-5-3) is now Generally Available.

  5. New model

    OCR 4.1 is now Generally Available

    OCR 4.1 (mistral-ocr-4-1) is now Generally Available.

  6. New model

    We released OCR 4.1. mistral-ocr-latest and mistral-ocr-4 now point to it

    We released OCR 4.1 (mistral-ocr-4-1). mistral-ocr-latest and mistral-ocr-4 now point to it.

  7. New model

    We released Leanstral 1.5, an updated Lean 4 formal proof engineering model with improved SFT mixture…

    This model will be retired on September 30, 2026.

  8. New model

    We released OCR 4. mistral-ocr-latest now points to it

    We released OCR 4 (mistral-ocr-4-0). mistral-ocr-latest now points to it.

  9. New model

    We released Mistral Medium 3.5, our frontier-class multimodal model optimized for agentic and coding use…

    Released as open weights under a Modified MIT license.

  10. New model

    We released Voxtral TTS, our state-of-the-art text-to-speech model with zero-shot voice cloning,…

    We released Voxtral TTS (voxtral-tts-2603), our state-of-the-art text-to-speech model with zero-shot voice cloning, multilingual support, and real-time streaming.

  11. New model

    We released Mistral Small 4, a hybrid model unifying instruct, reasoning, and coding in a single multimodal…

    We released Leanstral (labs-leanstral-2603), our first open-source code agent designed for Lean 4 formal proof engineering.

  12. New model

    We released Mistral Moderation 2603

    We released Mistral Moderation 2603 (mistral-moderation-2603).

  13. New model

    We released Voxtral Mini Transcribe 2 and Voxtral Mini Transcribe Realtime

    Introducing context biasing in our Audio Transcriptions API, Introducing diarize in our Audio Transcriptions API.

  14. New model

    Devstral 2.0 moves to paid API access

    Devstral 2.0 moves to paid API access.

  15. New model

    We released OCR 3

    We released OCR 3 (mistral-ocr-2512).

  16. New model

    We released Mistral Small Creative as a Labs model

    We released Mistral Small Creative (labs-mistral-small-creative) as a Labs model.

  17. New model

    We released Devstral 2 and Devstral Small 2

    We released Devstral 2 (devstral-2512) and Devstral Small 2 (labs-devstral-small-2512).

  18. New model

    We released Mistral Large 3 and Ministral 3

    We released Mistral Large 3 (mistral-large-2512) and Ministral 3 (ministral-3b-2512, ministral-8b-2512 and ministral-14b-2512).

  19. New model

    We released Magistral Medium 1.2 and Magistral Small 1.2

    We released Magistral Medium 1.2 (magistral-medium-2509) and Magistral Small 1.2 (magistral-small-2509).

  20. New model

    We released Mistral Medium 3.1

    We released Mistral Medium 3.1 (mistral-medium-2508).

  21. New model

    We released Codestral 2508

    We released Codestral 2508 (codestral-2508).

  22. New model

    We released Magistral Medium 1.1 and Magistral Small 1.1

    We released Magistral Medium 1.1 (magistral-medium-2507) and Magistral Small 1.1 (magistral-small-2507).

  23. New model

    We released our first Audio models for chat and a Transcription API:

    Voxtral Small (voxtral-small-2507) available for chat use cases Voxtral Mini (voxtral-mini-2507) available for chat use cases Voxtral Mini Transcribe (voxtral-mini-2507 via audio/transcriptions) optimized for transcription

  24. New model

    We released Devstral Small 1.1 and Devstral Medium

    We released Devstral Small 1.1 (devstral-small-2507) and Devstral Medium (devstral-medium-2507).

  25. New model

    We released Mistral Small 3.2

    We released Mistral Small 3.2.

  26. New model

    We released Magistral Medium and Magistral Small

    We released Magistral Medium (magistral-medium-2506) and Magistral Small (magistral-small-2506).

  27. New model

    We released Codestral Embed

    We released Codestral Embed (codestral-embed).

  28. New model

    We released Mistral OCR 2 and annotations

    We released Mistral OCR 2 (mistral-ocr-2505) and annotations.

  29. New model

    We released Devstral Small

    We released Devstral Small (devstral-small-2505).

  30. New model

    We released Mistral Medium 3

    We released Mistral Medium 3 (mistral-medium-2505).