Model · Multimodal language model

DeepSeek V4.1 Flash

DeepSeek's September 10, 2026 V4.1 Flash release, a text-and-image MoE with 1M-token context published as MIT open weights and served as the canonical deepseek-flash API line.

Developer
DeepSeek
Distribution
Downloadable weights · Developer API · Third-party hosting
Artifact licensing
Open-licensed artifacts
License scope
Reviewed release artifacts and mandatory terms; not an assessment of training code or training data openness.
Licenses
MIT License
Boundary
This record represents the DeepSeek-V4.1-Flash release of September 10, 2026, a distinct line in DeepSeek's newer CED architecture family published in the deepseek-ai organization under the standard DeepSeek MIT license. The V4 Flash preview snapshots, the retired deepseek-v4-flash API alias, and independent hosts are separate boundaries.

Risk statements

Not yet examined.

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