Mistral Large 4: 1T-parameter open weights, modified MIT licence
Why it matters
Mistral released the open weights of Mistral Large 4 on 29 October 2026: a ~1-trillion-parameter Mixture-of-Experts model (~52B active, 1M-token context, text + image input) downloadable from Hugging Face. Mistral reports 48% on the Artificial Analysis Coding Agent Index (tied with GLM-5.3 while using 47% fewer tokens per task) and 51% on the Artificial Analysis Cyber Index. The Mistral Ecosystem Open-Weight License is a modified MIT licence: free to use, modify, fine-tune and commercialize, but businesses operating a Model-as-a-Service offering need a separate commercial licence. API price $0.70/$2.10 per million input/output tokens. Benchmarks are Mistral-reported.
Read the source: mistral.ai (opens in a new tab)
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