Mistral’s new Large 4 trails some Chinese open models in independent tests

Mistral launched its trillion-parameter Large 4 (ML4) model this week, saying it “pushes the frontier of open-weight performance.” Artificial Analysis (AA), an independent AI benchmarking firm, ranked Mistral's Large 4 as the best model available from outside the U.S. and China in its index. The mixture-of-experts model, trained on Nvidia’s Grace Blackwell GPUs, scored its personal best in AA’s CyberGym-E2E-AA end-to-end cybersecurity measure, although several Chinese open models beat it overall.

ML4 scored 38 on the Artificial Analysis Intelligence Index v4.3.2, which AA says makes it the “most intelligent model from outside the US and China." At least five Chinese open models scored higher on the index: DeepSeek V4.1 Flash (max) at 39, GLM-5.3-Flash at 42, Kimi K3 (max) at 44, GLM-5.3 (max) at 45, and MiMo-V2.6-Pro at 46. While MiMo-V2.6-Pro is comparable in total size to ML4, GLM-5.3-Flash is about one-third the size at 320B parameters total and 18B versus ML4’s 49B–52B active. …