Mistral Large 4 Emerges as a 1.05T-Parameter Open-Weight Challenger With Strong Agent Benchmarks

Mistral AI is preparing Mistral Large 4, nicknamed Le Chonk, as a new open-weight multimodal flagship that early benchmark claims place near the top of several agentic workloads. The model is described in Mistral's documentation as a general-purpose multimodal Mixture-of-Experts system with 1.05T total parameters, 49B active parameters and a 1.6B vision encoder, positioning it as the company's most ambitious open-weight release to date Mistral Large 4 documentation.