Mistral AI releases Mistral Small 4

Released Mistral Small 4 — 119B total / 6B active MoE, 256k context, Apache 2.0. Merges Magistral (reasoning), Devstral (coding) and Small (instruct) into one, with reasoning effort adjustable as a parameter

Why it matters

Brought the trend of merging separate model families into a single set of weights to open weights

Source — Primary sources first; secondary reports are labelled “Press”

Officialmistral.aihttps://mistral.ai/news/mistral-small-4/

Added in Week 35, 2026 · See that week

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