New Models
Voxtral 3
Mistral Voxtral 3 adds TTS and a voice agent API to transcription
Mistral's Voxtral 3 grows from transcription into a voice stack: transcription, text-to-speech and a voice agent API.
Mistral AI Releases: Voxtral 3, Mistral Large 4 & Robostral Navigate
Mistral AI mixes open-weights drops — Small, Magistral, Voxtral, OCR — with the frontier Mistral 3 line and platform updates. ThursdAI — the weekly AI news podcast hosted by Alex Volkov — has covered 17 Mistral AI releases since Jan 2025, most recently Voxtral 3 on Oct 22, 2026. Highlights include Mistral Large 4, Robostral Navigate, Mistral Small 2501, Mistral Small 4. 9 of them shipped with open weights. Every entry below has the episode segment where we covered it live, plus primary-source links and key numbers where we have them.
17 releases9 open weights16 episodesJan 2025 – Oct 2026
October 2026 2
New Models
Mistral Large 4
Mistral Large 4 "Le Chonk": 1T parameters, open weights promised for October
Mistral's Large 4, nicknamed Le Chonk, is a trillion-parameter multimodal model with about 50B active and 1M context; open weights are promised for the end of October. Artificial Analysis scores it 38, the same as GPT-6 Luna, at about $1.13 per task versus 7 cents for Luna.
1T parameters~50B active38 Artificial Analysis Intelligence Index
July 2026 1
New ModelsOpen weights
Robostral Navigate
Mistral releases Robostral Navigate, its first embodied-navigation model
An 8B robotics model that guides robots through natural-language task instructions using a single RGB camera, claiming state of the art on the R2R-CE benchmark. Mistral's first move into embodied AI, and one of the week's most-discussed releases on Hacker News.
8B ParametersSOTA R2R-CE benchmark
April 2026 1
New ModelsOpen weights
Mistral Medium 3.5
Mistral Medium 3.5: 128B dense flagship with 256K context
Mistral launched Medium 3.5, a 128B dense flagship model with 256K context and configurable reasoning, released with weights on Hugging Face. Alongside it Mistral shipped a Vibe coding agent.
March 2026 2
New ModelsOpen weights
Voxtral TTS
Mistral drops Voxtral TTS, a 3B open-weight text-to-speech model
Mistral released Voxtral TTS, its first text-to-speech model, as breaking news during the live show: 3 billion parameters, open weights, with emotion controls for neutral, happy, and frustrated voices. Mistral claims it beats ElevenLabs Flash v2.5 in human preference tests with a 58% win rate on flagship voices and 68% on zero-shot voice cloning, though Alex's live test found it decent rather than stunning.
3B Mistral Voxtral TTS size
New ModelsOpen weights
Mistral Small 4
Mistral Small 4: 119B MoE with 6B active unifies vision, coding, reasoning
Mistral returned to open source with Small 4, a 119B-parameter MoE with 128 experts and only 6B active per token, released under Apache 2.0. It unifies the previous Pixtral (vision), Devstral (coding), and Magistral (reasoning) lines into one model and can fit on a single H100 when compressed. Early WolfBench results are sobering at ~17% on OpenClaw agent tasks, roughly on par with similarly sized Nemotron.
119B Mistral Small 4 total params
February 2026 1
New ModelsOpen weights
Voxtral Transcribe 2
Mistral's Voxtral Transcribe 2 dethrones Whisper as SOTA transcription
Mistral AI launched Voxtral Transcribe 2, state-of-the-art speech-to-text with sub-200ms latency, native diarization support, and open weights under Apache 2.0. The panel called it the first model to dethrone Whisper after roughly three years, and Alex used it to transcribe this very episode.
December 2025 2
New Models
Mistral OCR 3
Mistral OCR 3 claims 74% win-rate over OCR v2 with aggressive pricing
Mistral released OCR 3, its latest document intelligence model, claiming a 74% win-rate over OCR v2. The panel highlighted its aggressive pricing and document performance gains as part of the open-source-adjacent European push on practical document AI.
New ModelsOpen weights
Mistral 3 (Large 3 + Ministral 3)
Mistral returns to Apache 2.0 with Mistral Large 3 and Ministral 3
Mistral relaunched its model family under permissive Apache 2.0 licensing with Mistral Large 3 and the small Ministral 3 edge models. Large 3 ships a 256K context window and strong open-model coding positioning. The licensing shift reignited discussion around open model portability and deployability.
256K Mistral Large 3 context window
September 2025 2
New ModelsOpen weights
Magistral-Small-2509
Mistral updates its open reasoning model with Magistral-Small-2509
Mistral published Magistral-Small-2509, an updated checkpoint of its small open-weights reasoning model. The refresh keeps Mistral's open reasoning line current as the open-model competitive baseline moves quickly.
Major Features & Updates
Le Chat Connectors & Memories
Mistral adds 20+ MCP-powered connectors and Memories to Le Chat
Mistral upgraded Le Chat with more than 20 MCP-powered connectors and controllable Memories targeted at enterprise workflows. The update positions Le Chat as a serious enterprise assistant by wiring it into existing tools via the Model Context Protocol while giving users explicit control over what the assistant remembers.
May 2025 2
APIs & Platforms
Mistral Agents API
Mistral launches Agents API for building tool-using agents
Mistral released an Agents API, a framework for building custom tool-using agents on top of Mistral models. It joins the wave of big-lab agent frameworks, letting developers wire up tools and orchestrate agentic workflows through Mistral's platform.
APIs & Platforms
Mistral Embed
Mistral ships new state-of-the-art embedding API
Mistral announced a new state-of-the-art embedding API. The release gives developers a SOTA option for retrieval and semantic search workloads served through Mistral's platform.
April 2025 1
Products & Apps
Classifiers Factory
Mistral releases Classifiers Factory
Mistral announced Classifiers Factory, a service for building and training custom text classifiers on its platform. Covered as a quick item in the Big CO LLMs + APIs section of the show.
March 2025 2
New ModelsOpen weights
Mistral Small 3.1
Mistral Small 3.1 24B: open-weights multimodal model
Mistral released Mistral Small 3.1, a 24B-parameter open-weights model that adds multimodal (vision) capabilities to the Small line. Both instruct and base checkpoints were published on Hugging Face, making it a strong local multimodal option at the 24B size class.
APIs & Platforms
Mistral OCR
Mistral announces state-of-the-art OCR API
Mistral AI announced Mistral OCR, a document-understanding API the company claims is state of the art at extracting text, tables, and equations from complex documents. It targets RAG and document-processing pipelines with structured markdown output.
January 2025 1
New ModelsOpen weights
Mistral Small 2501
Mistral Small 2501: 24B open-weights model under Apache 2.0
Mistral AI released Mistral Small 2501, a 24B-parameter instruct model under the permissive Apache 2.0 license. Announced as breaking news during the show, it continues Mistral's tradition of strong small open models suitable for fine-tuning and local deployment.
24B Parameters
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