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 o3OpenAI |  Mistral Large 2Mistral |  DeepSeek-V3.1DeepSeek | |
|---|---|---|---|
| Vendor | OpenAI | Mistral | DeepSeek |
| Family | o-series | Mistral | DeepSeek |
| Release date | 2025-04-16 | 2024-07-24 | 2025-08-21 |
| Context window | 200,000 tokens | 128,000 tokens | 128,000 tokens |
| Parameters | — | 123B | 671B |
| Modality | text, vision | text | text |
| License | proprietary | Mistral Research License | MIT |
| Source | proprietary | open weights | open weights |
| Description | Reasoning-focused model in the o-series. | 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. | Large MoE open-weight model. Predecessor to DeepSeek-V4. |
| Links | |||
| Benchmarks | |||
| GPQA-D | 87.7% | — | — |
| HumanEval | — | 89.0% | — |
| AIME-25 | 88.9% | — | — |
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