Changes from previous version
Unifies Medium, Magistral, and Devstral 2 capabilities into one weight set; powers Le Chat and Vibe remote agents.
Release Summary
128B dense Mistral flagship with 256K context, multimodal inputs, and configurable reasoning_effort for chat versus agentic coding.
Timeline
April 29, 2026
Mistral Medium 3.5 released
Mistral ships Medium 3.5 with open weights and cloud coding agents in Vibe.