Mistral released public preview of Mistral Large 4 (“Le Chonk”), a 1T-parameter open-weight multimodal model — claimed most powerful open-weight system outside China.
Specs: 49B active parameters (52B including embeddings); 1.6B vision encoder; 1M context. Trained on 3,800 NVIDIA Grace Blackwell GPUs in European datacenters (~10MW power).
Weights release scheduled October 27, 2026 (Hugging Face: mistralai/Mistral-Large-4.0-1T05-A52B). Preview API live on Mistral Studio.
Cybersecurity focus: company claims closed US models refuse security tasks; open weights enable banks/governments to run on-premises. Funded by €3B September 2025 round. Benchmark claims vendor-reported.