Mistral Large 4, nicknamed “Le Chonk,” entered public preview on October 6 via Mistral Studio as a 1-trillion-parameter multimodal MoE model with 49 billion active parameters. It quickly appeared across multiple Arena leaderboards, including Text, Code: WebDev, Vision, and Agent categories, where it posted strong early scores in coding, cybersecurity, and agentic tasks relative to prior Mistral releases. The launch positions the model as Europe’s leading open-weight contender against U.S. and Chinese frontier systems, with emphasis on enterprise workloads and sovereignty via self-hosting. Weights are scheduled for release by the end of October under a custom license, which could further influence Arena rankings once broadly available. Traders are watching for any delays in full rollout or benchmark updates that might shift positioning before market resolution.