Mistral’s Le Chonk is now a top open model for coding, ranking alongside Codex GPT-6.1 Terra
ZDNET’s key takeaways
- As planned, Mistral has released the weights for its ML4 model.
- ML4 sets a new bar for Western open models.
- Open models are increasingly competitive with proprietary models.
French AI lab Mistral shipped its latest model, Mistral Large 4 (ML4), nicknamed “Le Chonk” for its trillion-parameter size, in preview on Oct. 6. As promised, the lab has released the model’s weights, alongside some new benchmark scores that show Western open models gaining ground over their Chinese peers.
Also: Open weights vs. closed: An AI civil war’s afoot
New coding performance ranking
ML4’s score on the agentic coding benchmark Terminal-Bench 4.0 jumped to 41% from its preview version’s 28% to 41%, beating Opencode’s GLM-5.3 by one small but important point. On the overall Index, however, which shows a model’s composite score across three relevant benchmarks, ML4 is a point behind GLM-5.3, scoring a 48 to...
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