Mistral previews Large 4 with a 1T-parameter multimodal MoE
Mistral releases Large 4 weights under an open-weight license
2026-10-06Verified announcementTRIAL
Mistral released Mistral Large 4 weights as a 1T-parameter MoE with 52B active parameters and a 1M-token context window. The model card lists vLLM, SGLang and llama.cpp support. The Mistral Ecosystem Open-Weight License allows commercial and non-commercial use, but operating a Model-as-a-Service business requires a separate commercial license.
Official · ReferenceMistral Large 4 announcementOfficial · DocumentationMistral Large 4 model documentation
Availability: weights downloadable; preview API remains available
What this means for you
For teams evaluating self-hosted frontier models, the promised artifact is now downloadable and has named serving paths. The MaaS restriction and hardware footprint require license and cost review before production use.
Evidence & related material
Mistral’s announcement and model card confirm 1T/A52B weights, 1M context, serving frameworks and the MaaS license restriction.
Subsequent changes
Mistral releases Large 4 weights under a license that restricts MaaS.
Technical details & scores
| Architecture | MoE; 1T total and 52B active parameters |
|---|---|
| Availability | weights downloadable; preview API remains available |
| Weights | promised by end of October 2026 |
| Capabilities | native multimodal input; unified instruction, reasoning and agentic behavior; 160+ languages |
| Evidence Limit | performance and fit claims remain publisher-reported; local serving cost not independently measured |
| Context | 1M tokens |
| Serving | vLLM, SGLang and llama.cpp listed |
| License | Mistral Ecosystem Open-Weight License; commercial and non-commercial use allowed, separate commercial license required for Model-as-a-Service |
| Time Basis | Mistral RSS published the weights release at 2026-10-29T12:00:07Z |
Technical impact 4
Engineering value 4
Adoption signal 3
Maturity 3
Verification cost 3
Risk 3