Mistral’s Le Chonk: Europe’s First Trillion-Parameter Open-Weight Model Beats Closed Giants on Cybersecurity
French AI firm Mistral has launched Le Chonk (Mistral Large 4), a 1-trillion-parameter open-weight model trained from scratch on 3,800 Nvidia Grace Blackwell GPUs in its own European data centers. It scores a world-best 82% on vulnerability reproduction, while Claude Opus 5.5 and GPT-6 Astra score near zero for refusing the task. Weights arrive end of October.





