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On October 6, 2026, Mistral AI launched a public preview of Mistral Large 4 — nicknamed 'le Chonk' — a 1.05-trillion-parameter natively multimodal Mixture-of-Experts model with 52B active parameters. Trained from scratch on 3,800 NVIDIA Grace Blackwell GPUs in European datacenters, it leads open-weight models in cybersecurity (93% on Cybench, 82% on vulnerability reproduction), scores 61.7% on DeepSWE v1.1, 59.9% on AutomationBench, and 1,393 on AA-Briefcase. At $0.68/$2.09 per million tokens (introductory pricing through end of 2026), with weights promised by October 31, it represents the largest open-weight model release to date and a major step toward European AI sovereignty.
French AI company behind Mistral Large 4 (le Chonk) — the largest open-weight model at 1.05T parameters. European AI sovereignty leader with €3B Series D.