Tag: Mistral
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Mistral Large 4: Europe’s 1T Open-Weight Model Enters Preview
On October 6, 2026, Mistral AI opened a public preview of Mistral Large 4 — a 1.05-trillion-parameter, natively multimodal model with 52 billion active parameters. Nicknamed “le Chonk” and unofficially ML4, it is the Paris-based lab’s largest model to date and, on Mistral’s own numbers, the strongest open-weight model developed outside China. The preview API […]
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Mistral Releases Shieldstral, a 3B Policy-Adaptive Safety Classifier
On August 4, 2026, Mistral AI released Shieldstral 1.0 — a 3-billion-parameter open-weight safety classifier that judges both text and images against moderation policies written in plain language at inference time. Instead of shipping a fixed taxonomy of harm categories baked in during training, Shieldstral asks whatever question you hand it. Mistral says the model […]
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Mistral Releases Robostral Navigate: Single-Camera Robot Navigation
On July 8, 2026, Mistral AI announced Robostral Navigate — the company’s first embodied navigation model and its formal entry into physical AI. The 8-billion-parameter model guides robots through complex environments using nothing but a single RGB camera and natural language instructions — no LiDAR, no depth sensors, and no pre-built maps. It sets a […]
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Mistral Medium 3.5 Launches with Vibe Remote Coding Agents
On April 29, 2026, Mistral AI launched Mistral Medium 3.5 — a 128-billion-parameter dense multimodal model with a 256k context window — alongside Vibe remote agents, a cloud-based system that runs coding sessions asynchronously and in parallel. The model unifies instruction following, reasoning, and coding into a single set of weights, replaces Devstral 2 in […]
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Voxtral TTS: Mistral’s Open-Weight Text-to-Speech Model Rivals ElevenLabs
On March 26, 2026, Mistral AI released Voxtral TTS — a 4-billion-parameter open-weight text-to-speech model that the company says outperforms ElevenLabs Flash v2.5 in human preference tests while matching ElevenLabs v3 in lifelike interactions. Built on Ministral 3B, Voxtral TTS supports nine languages, clones voices from just three seconds of audio, and achieves 70ms latency […]
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Leanstral: Mistral’s Open-Source Proof Agent for Lean 4
On March 16, 2026, Mistral AI released Leanstral — the first open-source AI agent purpose-built for Lean 4, the formal proof assistant used across mathematical research and verified software development. With 120 billion total parameters but only 6 billion active per token, Leanstral can formally prove that AI-generated code meets its specifications — addressing one […]
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Mistral Small 4: Four Models Unified in One Open-Source MoE
On March 16, 2026, Mistral AI released Mistral Small 4 — a 119-billion-parameter Mixture-of-Experts model that unifies instruction following, reasoning, multimodal understanding, and agentic coding into a single deployment. With only 6 billion active parameters per token (8B including embedding layers), it delivers frontier-class performance at a fraction of the cost and latency of larger […]
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Voxtral Transcribe 2: Mistral’s Open Real-Time Speech-to-Text
Key points On February 4, 2026, Mistral AI launched Voxtral Transcribe 2, a dual-model family with a high-accuracy batch transcription model and an open-weights real-time model. Mistral’s batch transcription model, Voxtral Mini Transcribe V2, achieves approximately 4% word error rate on the FLEURS benchmark, outperforming GPT-4o mini, Gemini 2.5 Flash, AssemblyAI Universal and Deepgram Nova […]
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Mistral AI Releases Magistral Small 2509: A New Era in Large Language Models
Key points Mistral AI announced the release of Magistral Small 2509, the latest addition to its Magistral series of large language models. The post lists optimized efficiency, expanded training data and a scalable architecture as key features, describing the model as designed for high accuracy while maintaining low computational costs. The post lists enterprise solutions, […]
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Voxtral Mini 3B & Small 24B — Frontier Open‑Source Speech Understanding by Mistral AI
Introduction On July 15, 2025, Mistral AI launched Voxtral, a new family of speech understanding models offering state-of-the-art, multilingual, and open-source voice AI. Available in two sizes—a compact Mini 3B for local or edge use and a larger Small (24B) for production environments—both are offered under an Apache 2.0 license and accessible via Hugging Face and […]