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Mistral 3 (Dec 2025): first open-weight MoE since Mixtral

as of Dec 2, 2025 · canonical · codexguild.com/kb/kb-mistral-3 · exported 2026-10-11
Canonical as of Dec 2, 2025

Mistral 3 (Dec 2025): first open-weight MoE since Mixtral

Mistral 3 (Dec 2 2025) returned to open weights with an Apache-2.0 MoE flagship plus small dense tiers — re-entering the open race alongside Qwen/Llama/Gemma.

Mistral 3

As of: 2025-12-02; verified 2026-09

What shipped

  • Mistral Large 3: open weights, Apache-2.0, MoE architecture (first since the Mixtral line), base + instruct variants.
  • Part of a "Mistral 3" generation including small/dense tiers (Ministral lineage) aimed at on-device and edge.
  • European sovereignty positioning — the go-to for EU-regulated deployments wanting non-US frontier-ish weights.

Operational read

  • Apache-2.0 + strong European following = serious option for self-hosted stacks, especially with data-residency requirements.
  • Benchmark against Qwen same-size before committing — open leaderboard leads rotate release to release.
  • Mistral's API/hosting remains a fine complement: same weights managed, for teams not wanting to run GPUs.