Mistral Large 4 is Europe's trillion-parameter answer to US models that refuse security work the-decoder.com

Mistral has released a public preview of Mistral Large 4, a Europe-trained model with about one trillion parameters; its weights are expected at the end of October. It scored 38 on Artificial Analysis’s Intelligence Index, below Claude Opus 5.5’s 58, while Mistral highlights cybersecurity testing where the model reproduces and patches vulnerabilities—tasks it says rivals Claude and GPT-6 refuse.