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 GPT-5 ProOpenAI |  Mistral Large 2Mistral |  DeepSeek-R1DeepSeek |  Claude 4.5 HaikuAnthropic | |
|---|---|---|---|---|
| Vendor | OpenAI | Mistral | DeepSeek | Anthropic |
| Family | GPT | Mistral | DeepSeek | Claude |
| Release date | 2025-08-07 | 2024-07-24 | 2025-01-20 | 2025-10-01 |
| Context window | 400,000 tokens | 128,000 tokens | 128,000 tokens | 200,000 tokens |
| Parameters | — | 123B | 671B | — |
| Modality | text, vision, audio | text | text | text, vision |
| License | proprietary | Mistral Research License | MIT | proprietary |
| Source | proprietary | open weights | open weights | proprietary |
| Description | Higher-reasoning variant of GPT-5, used for harder scientific and research tasks (e.g., immunology breakthroughs at NIH). Same 400K context as GPT-5; trades latency for depth. | 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. | Reasoning-focused open-weight model. | Fast, cost-effective Claude model. |
| Links | ||||
| Benchmarks | ||||
| HumanEval | — | 89.0% | — | — |
| AIME-25 | — | — | 79.8% | — |
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