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 DeepSeek-R1DeepSeek |  GPT-4.1OpenAI | GPT-5 Pro OpenAI | DeepSeek-V4-Flash DeepSeek | |
|---|---|---|---|---|
| Vendor | DeepSeek | OpenAI | OpenAI | DeepSeek |
| Family | DeepSeek | GPT | GPT | DeepSeek |
| Release date | 2025-01-20 | 2025-04-14 | 2025-08-07 | 2026-04-22 |
| Context window | 128,000 tokens | 1,000,000 tokens | 400,000 tokens | 1,000,000 tokens |
| Parameters | 671B | — | — | 284B (13B active) |
| Modality | text | text, vision | text, vision, audio | text |
| License | MIT | proprietary | proprietary | MIT |
| Source | open weights | proprietary | proprietary | open weights |
| Description | Reasoning-focused open-weight model. | — | 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. | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. |
| Links | ||||
| Benchmarks | ||||
| AIME-25 | 79.8% | — | — | — |
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