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 DeepSeek-R1DeepSeek |  Claude 4.7 OpusAnthropic |  Mistral Large 2Mistral |  GPT-5.5OpenAI | |
|---|---|---|---|---|
| Vendor | DeepSeek | Anthropic | Mistral | OpenAI |
| Family | DeepSeek | Claude | Mistral | GPT |
| Release date | 2025-01-20 | 2026-04-16 | 2024-07-24 | 2026-04-23 |
| Context window | 128,000 tokens | 1,000,000 tokens | 128,000 tokens | 400,000 tokens |
| Parameters | 671B | — | 123B | — |
| Modality | text | text, vision | text | text, vision, audio |
| License | MIT | proprietary | Mistral Research License | proprietary |
| Source | open weights | proprietary | open weights | proprietary |
| Description | Reasoning-focused open-weight model. | Anthropic's most capable model, optimized for complex reasoning and coding. Improved software engineering, long-running coding tasks, and higher-resolution vision over Claude 4.6. | — | OpenAI's smartest and most intuitive model — successor to GPT-5, with major coding, research, and document workflow gains. GPT-5.5 Pro variant also available for heavier reasoning. |
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