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 GPT-5 ProOpenAI |  DeepSeek-V3.1DeepSeek |  Mistral Large 2Mistral | |
|---|---|---|---|
| Vendor | OpenAI | DeepSeek | Mistral |
| Family | GPT | DeepSeek | Mistral |
| Release date | 2025-08-07 | 2025-08-21 | 2024-07-24 |
| Context window | 400,000 tokens | 128,000 tokens | 128,000 tokens |
| Parameters | — | 671B | 123B |
| Modality | text, vision, audio | text | text |
| License | proprietary | MIT | Mistral Research License |
| Source | proprietary | open weights | open weights |
| 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 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. |
| Links | |||
| Benchmarks | |||
| HumanEval | — | — | 89.0% |
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GPT-5.6 Sol+
Claude 4.8 Opus+
Qwen3.7-Max+
Gemini 3.5 Flash+Gemini 3.5+Gemini Omni+GPT-5.5+DeepSeek-V4-Flash+Gemini 3 Pro+DeepSeek-V4-Pro+Qwen3.6-27B+Claude 4.7 Opus+Claude 4.6 Sonnet+Claude 4.5 Haiku+DeepSeek-V3.1✓GPT-5 Pro✓GPT-5+
Grok 4+Gemini 2.5 Flash+Qwen3 235B+o3+GPT-4.1+
Llama 4 Scout+Llama 4 Maverick+Gemini 2.5 Pro+DeepSeek-R1+Mistral Large 2✓