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Mistral releases improved Large 4 model weights after preview

Mistral released the weights for an improved Mistral Large 4 after its earlier public preview. It says coding and defensive-security performance and reasoning efficiency improved, and offers low, medium and high reasoning modes. Open weights allow self-hosting under the applicable license; vendor benchmarks do not prove every production outcome.

Mistral

Mistral Large 4 open weights

Models

Published (date only)

Updated

1 source

Primary source · October 29, 2026

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