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 DeepSeek-V3.1DeepSeek |  Mistral Large 2Mistral | DeepSeek-V4-Flash DeepSeek |  o3OpenAI | |
|---|---|---|---|---|
| Vendor | DeepSeek | Mistral | DeepSeek | OpenAI |
| Family | DeepSeek | Mistral | DeepSeek | o-series |
| Release date | 2025-08-21 | 2024-07-24 | 2026-04-22 | 2025-04-16 |
| Context window | 128,000 tokens | 128,000 tokens | 1,000,000 tokens | 200,000 tokens |
| Parameters | 671B | 123B | 284B (13B active) | — |
| Modality | text | text | text | text, vision |
| License | MIT | Mistral Research License | MIT | proprietary |
| Source | open weights | open weights | open weights | proprietary |
| Description | Large MoE open-weight model. Predecessor to DeepSeek-V4. | Large text-only Mistral model with a 128K context window and 123B parameters, tuned for strong instruction following and long-context reasoning. Mistral's flagship open-weights release in the Large 2 line. | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. | Reasoning-focused model in the o-series. |
| Links | ||||
| Benchmarks | ||||
| GPQA-D | — | — | — | 87.7% |
| HumanEval | — | 89.0% | — | — |
| AIME-25 | — | — | — | 88.9% |
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