Model Card: Mistral Large 4
Mistral Large 4 (ML4, nicknamed Le Chonk): public preview announced 2026-10-06, a 1.05T-total-parameter granular MoE multimodal model; the official active-parameter count is inconsistent (the launch post says 49B, the docs model card changed to 52B a few hours later with no explanation); list pricing is $1.36 input / $4.18 output per 1M tokens (cached $0.14), though the docs card currently shows exactly half that with no explanation; the docs card claims a 1M-token context window, but third-party trackers Artificial Analysis and Vals.ai both list 512K (524,288 tokens) with a 256K output cap; scores 93% on Cybench and 82% on Artificial Analysis Cyber Index's vulnerability-reproduction task (self-reported, the highest of any model — Claude Opus 5.5 and GPT-6 Astra score near zero by refusing); but on the independent Artificial Analysis Intelligence Index v4.3.2, it scores only 38, trailing MiMo-V2.6-Pro (46), GLM-5.3 (45), and Kimi K3 (44) by 6-8 points; Vals.ai ranks it 6th of 75 models (1st among open models) on Harvey's Legal Agent Benchmark, one of its few independently-verified strengths; open weights and a named license are still pending, expected by end of month (reporters were told October 27)