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Mistral opens a Large 4 API preview; model weights are still to come

Mistral launched a public API preview of its multimodal Large 4 model in Mistral Studio. It describes a one-trillion-parameter model with 49 billion active parameters, and promises model weights by the end of October. Those weights and their license are not available yet; its benchmark comparisons are Mistral claims.

Mistral

Mistral Large 4

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Primary source · Mistral · October 6, 2026

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