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Mistral AI
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Mistral AI✓

@MistralAI

Frontier AI in your hands. Get work done with @MistralVibe at https://t.co/JsGnCVMUFq.

2 Following226K Followers216 Posts
  1. Mistral AI✓@MistralAI
    Today, we release the weights of a new and improved Le Chonk, advancing the open frontier for agentic coding and cybersecurity. 💻 Built to build: Le Chonk ranks #1 on @cognition’s FrontierCode among open models, and sets a new benchmark for Pareto efficiency on @artificialanalysis. 🛡 Built to defend: State-of-the-art in cyberdefense, put through the paces by the world's leading cyber vendors, including @CrowdStrike, @cloudflare, @rubrik, @zscaler, and others. Built for sovereignty: Make it yours. Download the weights on @huggingface , customize it with Mistral Forge, and deploy it wherever you need it. Read more from our team and customers 👇:
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  2. Mistral AI✓@MistralAI
    Meet Mistral Large 4, aka Le Chonk. • 1T parameters, natively multimodal. 49B active. It is the best open weights model from US or Europe on aggregated benchmarks. • State-of-the-art on critical workloads, including cyber defense, manufacturing and finance and it surpasses closed frontier models on visual grounding. • Forged in Europe end-to-end and is deployable from Europe via our own Mistral Cloud infrastructure. • Available to all via API today. Working with cybersecurity partners privately. Open weights release end of October.
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  3. Mistral AI✓@MistralAI
    Mistral AI
    RT @huggingface: We sat down with @MistralAI's Pierre Stock and Sagar Vaze from Mistral on launch day of Mistral Large 4. Open weights. Trained in Mistral’s own data centers. Excels at cyber. Full conversation on cyber, training, evals and sandboxing:
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  4. Mistral AI✓@MistralAI
    Posts @MistralAI
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  5. Mistral AI✓@MistralAI
    Today, we’re introducing the Responses API in public preview, made for building agents on Mistral. Each response returns the model’s answer, its reasoning and its tool calls as separate items, so your app can handle every step more easily than with Chat Completions. It works with all chat models hosted by Mistral, including Large 4.
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  6. Mistral AI✓@MistralAI
    Posts @MistralAI
    We’re also now serving two fast, low-cost models: - DeepSeek V4.1 Flash, in public preview. Great for long-context coding and agentic tasks. - GLM 5.3 Flash, now generally available. Great for subagents, tool calls and coding tasks.
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  7. Mistral AI✓@MistralAI
    Posts @MistralAI
    Served in the EU and US on Mistral AI Cloud Inference. Learn more about Responses API here:
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  8. Mistral AI✓@MistralAI
    Voxtral Mini Transcribe 3 ranks #2 on Voice Arena’s Diarization + ASR leaderboard.
    Voice Arena @voicearena_ai
    🚀 Mistral AI’s Voxtral Mini Transcribe 3 ranks #2 out of 9 models by DER on Voice Arena’s Diarization + ASR leaderboard, outperforming its larger counterpart. Following the launch of Mistral’s new Voxtral 3 family, we evaluated its Mini and Small transcription models on Voice Arena’s Diarization Bench. 🥈 Voxtral Mini Transcribe 3: 40.4% DER (#2) Voxtral Small Transcribe 3: 41.1% DER (#4) Both models were tested on 139 held-out conversations under identical conditions, using human-verified references, a strict 0 ms collar, and no predefined speaker counts or audio cleanup. Mini leads on in-person conversations (40.6% vs. 41.5%), while Small performs slightly better on online calls (39.1% vs. 39.5%). Overlapping speech remains the biggest challenge. Missed speech accounts for 82% of Mini's total DER. Both models correctly identify the exact number of speakers in 83.5% of sessions. Congratulations to @MistralAI on the release ! 👏 View complete track & condition breakdown:
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  9. Voice Arena✓@voicearena_ai
    🚀 Mistral AI’s Voxtral Mini Transcribe 3 ranks #2 out of 9 models by DER on Voice Arena’s Diarization + ASR leaderboard, outperforming its larger counterpart. Following the launch of Mistral’s new Voxtral 3 family, we evaluated its Mini and Small transcription models on Voice Arena’s Diarization Bench. 🥈 Voxtral Mini Transcribe 3: 40.4% DER (#2) Voxtral Small Transcribe 3: 41.1% DER (#4) Both models were tested on 139 held-out conversations under identical conditions, using human-verified references, a strict 0 ms collar, and no predefined speaker counts or audio cleanup. Mini leads on in-person conversations (40.6% vs. 41.5%), while Small performs slightly better on online calls (39.1% vs. 39.5%). Overlapping speech remains the biggest challenge. Missed speech accounts for 82% of Mini's total DER. Both models correctly identify the exact number of speakers in 83.5% of sessions. Congratulations to @MistralAI on the release ! 👏 View complete track & condition breakdown:
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  10. Mistral AI✓@MistralAI
    Today we’re announcing a new collaboration with @nvidia to bring AI to industrial engineering: - faster simulation - open benchmarks and supporting datasets for physics AI - evaluations for agentic AI in CAE and EDA More here:
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    1381692K102K
  11. Mistral AI✓@MistralAI
    Mistral AI
    RT @noctus91: Can an STT model make sense of a 135 year old recording? I tested @MistralAI new Voxtral transcription model on a noisy French phonograph recording of Gustave Eiffel from 1891. It matched 100 of 107 words in INA’s published excerpts (6.5% WER), while transcribing 75 additional words omitted from the reference. It handled Eiffel’s dictation well but struggled with proper names and some guest dialogue. A fascinating test of modern speech recognition on audio from 1891.
    Mistral AI @MistralAI
    Introducing Voxtral 3: state-of-the-art Transcribe and Speech models powering Mistral’s new voice agents API. 🧵
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  12. Mistral AI✓@MistralAI
    Introducing Voxtral 3: state-of-the-art Transcribe and Speech models powering Mistral’s new voice agents API. 🧵
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    2503773.3K279K
  13. Mistral AI✓@MistralAI
    Posts @MistralAI
    Voxtral 3 also introduces a voice agent SDK, built on LiveKit. Transcribe listens, a reasoning model thinks and calls tools, and Speech replies, streamed as one pipeline for natural, intelligent conversation.
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  14. Mistral AI✓@MistralAI
    Posts @MistralAI
    More here:
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  15. Mistral AI✓@MistralAI
    Turns out le Chonk is into rocket science. Mistral Large 4 scoring well in engineering and astronomy on Ulam’s private benchmark, STEMBench:
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  16. Mistral AI✓@MistralAI
    Mistral AI
    RT @HelloSurgeAI: 🇫🇷 Le Chonk joins the sudo L7 leaderboard 🇫🇷 We just added @MistralAI's Mistral Large 4 to sudo L7, our benchmark for staff-level software engineering. Mistral Large 4 scores 13.3%, ahead of Muse Spark 1.3 (12.2%) and Grok 4.7 (10.6%). sudo L7 tests whether coding agents can go beyond writing correct code to exercise the judgment of experienced engineers: navigating messy systems, spotting hidden risks, and knowing when technically correct code is still the wrong thing to ship. Allez, le Chonk ! 🥖 Leaderboard ↓
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  17. Mistral AI✓@MistralAI
    What can large-scale AI models bring to the growing complexity of particle physics? @CERN and Mistral join forces to explore this question. The ambition: a single Large Physics Model, trained on billions of simulated collisions.
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    1333262.4K112K
  18. Mistral AI✓@MistralAI
    Le Chonk cooked on visual grounding. Pinpoints exactly where things are in an image. 42% on Dense 200, ahead of even frontier closed models..
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    931953.3K138K
  19. Mistral AI✓@MistralAI
    Posts @MistralAI
    Designed to support multiple tasks: - reconstructing particle collisions - identifying particles - flagging unexpected signals - evaluating future detector designs
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  20. Mistral AI✓@MistralAI
    Posts @MistralAI
    Engineering drawings: Mistral Large 4 zooms, inspects, verifies. Until the answer is exact.
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    121324717.7K
  21. Mistral AI✓@MistralAI
    Welcome to Mistral, New Material. Let’s bring design to mission-critical AI.
    New Material @newmaterialAI
    New Material joins @MistralAI to design the frontier. Over the last 6 years we've teamed up with ambitious organisations transforming their industries with AI. Today, we are excited to take it to the next level within Europe's premier frontier AI lab.
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  22. Mistral AI✓@MistralAI
    Posts @MistralAI
    Vision for engineering, manufacturing, and earth observation. Checks mechanical parts, pulls evidence from PDFs, scans gigapixel satellite imagery for the hardest-to-find objects. Bon appétit.
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  23. New Material@newmaterialAI
    New Material joins @MistralAI to design the frontier. Over the last 6 years we've teamed up with ambitious organisations transforming their industries with AI. Today, we are excited to take it to the next level within Europe's premier frontier AI lab.
    51719562K
  24. Mistral AI✓@MistralAI
    Mistral Large 4 runs general-purpose agents that gather information and produce finished deliverables across complex workflows.
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    705386345K
  25. Mistral AI✓@MistralAI
    Look up! Mistral models are in orbit 🌍. Proud to join @orbitworksspace and @LoftOrbital's first-of-its-kind AI satellite constellation with @NVIDIAAIInfra.
    Loft @LoftOrbital
    Just a few weeks ago, @orbitworksspace launched Altair, the first of a 50-satellite AI constellation that will enable users to receive AI-generated alerts within minutes. @NVIDIAAIInfra solutions is making this possible, supporting models like Mistral’s Ministral 3 to deliver fast, reliable answers for users' critical questions. Read more: #SpaceMadeSimple #AIInfrastructure #AIforSpace
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  26. Mistral AI✓@MistralAI
    Posts @MistralAI
    Gmail. Google Sheets. Slack. Salesforce. i.e. the four horsemen of Monday. On AutomationBench, Mistral Large 4 took on 657 business workflows across simulated workplace apps, all four included, finishing ahead of Kimi K3, MiMo-V2.6-Pro and DeepSeek V4 Pro.
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  27. Loft✓@LoftOrbital
    Just a few weeks ago, @orbitworksspace launched Altair, the first of a 50-satellite AI constellation that will enable users to receive AI-generated alerts within minutes. @NVIDIAAIInfra solutions is making this possible, supporting models like Mistral’s Ministral 3 to deliver fast, reliable answers for users' critical questions. Read more: #SpaceMadeSimple #AIInfrastructure #AIforSpace
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    033726.4K
  28. Mistral AI✓@MistralAI
    Posts @MistralAI
    The Ballon d'Or, legal division: On Harvey's Legal Agent Benchmark (LAB), Mistral Large 4 is the #1 oss model.
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    491177.2K