Introducing Mistral Large 4: Le chonk simonwillison.net

Mistral has released a preview of Mistral Large 4, a 1-trillion-parameter model with 49 billion active parameters, trained on 3,800 NVIDIA Grace Blackwell GPUs. The API preview offers “none” and “high” reasoning modes; Mistral says open weights will arrive at the end of the month, and the model scores 38 on Artificial Analysis, up from 9 for Mistral Large 3.