DeepSeek-V3.1 by DeepSeek: released Aug 21, 2025; 671B total, 37B active parameters; 128K-token context; open weights under MIT.
Verified facts
- Released
- Aug 21, 2025 · verified Sep 29, 2026 · Evidence
- Outside China
- Open weights · verified Sep 29, 2026 · Evidence
- Open weights
- Yes · verified Sep 29, 2026 · Evidence
- License
- MIT · verified Sep 29, 2026 · Evidence
- Claim status
- Company-reported · verified Sep 29, 2026 · Evidence
- Parameters
- 671B total, 37B active · verified Sep 29, 2026 · Evidence
- Context window
- 131,072 tokens · verified Sep 29, 2026 · Evidence
- List price
- Not verified yet
- Hugging Face
- deepseek-ai/DeepSeek-V3.1 · verified Sep 29, 2026
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Release timeline
No verified events for this model yet.