Introducing Mistral Large 4: Le chonk
Simon Willison’s Weblog Simon Willison ● Covered by 10 sources
Mistral released a preview of Mistral Large 4 via its API. It is a 1 trillion-parameter model running on 3,800 NVIDIA Grace Blackwell GPUs. Mistral says it will follow with an open-weights version at the end of this month and limits reasoning levels to “none” and “high” in the API.
Why it matters
Introducing Mistral Large 4: Le chonk Mistral are back in the game. Today they're releasing a preview of Mistral Large 4, a 1 trillion parameter, 49 billion active parameter model trained on their own cluster of 3,800 NVIDIA Grace Blackwell GPUs. The preview is available via their API. They promise to release the open weights model at the "end of this month". The model only supports two reasoning levels - "none" and "high" - via the Mistral API. Here are both pelicans - the "high" one looks better, though surprisingly it only used 2,717 output tokens compared to "none" which used 3,275: On Artificial Analysis it scores 38, just behind DeepSeek 4.1 Flash, which is a 552B model. It's a huge improvement on last December's Mistral Large 3, which drew this terrible pelican and scored 9 on AA. It's certainly not a Fable-class model, but it's great to see Mistral put out a model that's back to being maybe about 6 months behind the frontier. Via Hacker News Tags: ai, generative-ai, llms, mistr