Mistral Large 3
Mistral AIMistral AI's first mixture-of-experts model since Mixtral and the current open-weights flagship, released December 2, 2025 under Apache 2.0. 41B active / 675B total parameters, 256K context, native multimodal support (text + images). Trained from scratch on 3000 H200 GPUs. Debuted at #2 on the LMArena OSS non-reasoning leaderboard. Combined with Ministral 3 (smaller dense variants) and Mistral Vibe CLI in the broader Mistral 3 stack. Runs at the compute cost of a ~41B dense model while accessing the capacity of a 675B one, Europe's flagship open-weights frontier model and the direct successor to the retired Mistral Large 2 (March 2025).
Mistral Large 3 (mistral-large-3-25-12), announced 2 Dec 2025. Sparse MoE, 41B active / 675B total params. Base + instruct released; reasoning variant announced but not shipped as of mid-2026. Consolidated on 2026-07-29 from mistral-large-2; openness follows mistral-large-3, the release that currently governs. See sources/slug_aliases.yaml.
Openness
3 high confidence- weights
- open(Apache-2.0)
- data
- closed
- code
- closed
- license
- Apache-2.0(OSI)
Apache-2.0 weights with closed data and no training code, so 3. Mistral relicensed between releases: Large 2 shipped under the Mistral Research License, which permits research and non-commercial use only and scored 2, and Large 3 is Apache-2.0. Large 3 governs, so the tier records the relicensing rather than the family's worst historical terms.
- https://huggingface.co/api/models/mistralai/Mistral-Large-3-675B-Base-2512 recorded 2026-07-29
license apache-2.0, ungated, 1,352.0GB of weight files; the base checkpoint, distinct from the -Instruct-2512 sibling
- https://mistral.ai/news/mistral-3/ recorded 2026-06-04
flagship phase-C verification source
- https://docs.mistral.ai/models/mistral-large-3-25-12 recorded 2026-06-04
flagship phase-C verification source
- https://azure.microsoft.com/en-us/blog/introducing-mistral-large-3-in-microsoft-foundry-open-capable-and-ready-for-production-workloads/ recorded 2026-06-04
flagship phase-C verification source
Adoption
3 medium confidenceModest direct HF downloads (~7.5k/mo, confirmed); the research-only license caps commercial deployment, limiting reach vs permissively-licensed peers. Placed at 3.
- https://huggingface.co/mistralai/Mistral-Large-Instruct-2407 recorded 2026-06-04
live repo 7,455 downloads/mo
Capability
4 high confidenceDebuts #2 in LMArena OSS non-reasoning category (#6 among all OSS models). Per-benchmark MMLU-Pro/GPQA/SWE-bench not given in the launch post.
- https://mistral.ai/news/mistral-3/ recorded 2026-06-04
flagship phase-C verification source
Unchanged since 2026-07-30 (last edited, not re-checked)