Mistral Large 4 open weights: what's new (October 29, 2026)
Mistral released open weights for Mistral Large 4 (Le Chonk), a 1-trillion-parameter multimodal mixture-of-experts model, under the Mistral Ecosystem Open-Weight License, a modified MIT license that requires a separate commercial license for Model-as-a-Service businesses. The API price on the page is $0.70 per million input tokens and $2.10 per million output tokens. Coding and security rankings on the page are vendor-reported.
Who it is for
Developers and defenders who want open weights for coding and defensive cybersecurity, including self-hosting.
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