Mistral Small 4

Mistral🇫🇷mistralai/mistral-small-2603

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Mistral Small 4 (2603) is Mistral AI's March 2026 model, a 119B-parameter mixture-of-experts model with 6B active parameters that unifies instruct, reasoning, and coding with a toggleable reasoning mode and 256K context. It combines reasoning strength from Magistral, vision from Pixtral, and coding ability from Devstral in one efficient model.