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 o3OpenAI |  Mistral Large 2Mistral | GPT-4.1 OpenAI |  Claude 4.5 HaikuAnthropic | |
|---|---|---|---|---|
| Vendor | OpenAI | Mistral | OpenAI | Anthropic |
| Family | o-series | Mistral | GPT | Claude |
| Release date | 2025-04-16 | 2024-07-24 | 2025-04-14 | 2025-10-01 |
| Context window | 200,000 tokens | 128,000 tokens | 1,000,000 tokens | 200,000 tokens |
| Parameters | — | 123B | — | — |
| Modality | text, vision | text | text, vision | text, vision |
| License | proprietary | Mistral Research License | proprietary | proprietary |
| Source | proprietary | open weights | proprietary | proprietary |
| 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. | — | Fast, cost-effective Claude model. |
| Links | ||||
| Benchmarks | ||||
| GPQA-D | 87.7% | — | — | — |
| HumanEval | — | 89.0% | — | — |
| AIME-25 | 88.9% | — | — | — |
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