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 DeepSeek-V3.1DeepSeek |  o3OpenAI |  Mistral Large 2Mistral | DeepSeek-V4-Flash DeepSeek | |
|---|---|---|---|---|
| Vendor | DeepSeek | OpenAI | Mistral | DeepSeek |
| Family | DeepSeek | o-series | Mistral | DeepSeek |
| Release date | 2025-08-21 | 2025-04-16 | 2024-07-24 | 2026-04-22 |
| Context window | 128,000 tokens | 200,000 tokens | 128,000 tokens | 1,000,000 tokens |
| Parameters | 671B | — | 123B | 284B (13B active) |
| Modality | text | text, vision | text | text |
| License | MIT | proprietary | Mistral Research License | MIT |
| Source | open weights | proprietary | open weights | open weights |
| Description | Large MoE open-weight model. Predecessor to DeepSeek-V4. | Reasoning-focused model in the o-series. | — | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. |
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