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 o3OpenAI |  DeepSeek-V4-FlashDeepSeek | GPT-4.1 OpenAI |  Gemini 2.5 Pro | |
|---|---|---|---|---|
| Vendor | OpenAI | DeepSeek | OpenAI | |
| Family | o-series | DeepSeek | GPT | Gemini |
| Release date | 2025-04-16 | 2026-04-22 | 2025-04-14 | 2025-03-25 |
| Context window | 200,000 tokens | 1,000,000 tokens | 1,000,000 tokens | 2,000,000 tokens |
| Parameters | — | 284B (13B active) | — | — |
| Modality | text, vision | text | text, vision | text, vision, audio, video |
| License | proprietary | MIT | proprietary | proprietary |
| Source | proprietary | open weights | proprietary | proprietary |
| Description | Reasoning-focused model in the o-series. | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. | — | Predecessor to Gemini 3 Pro. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | — | — | — | 84.1% |
| GPQA-D | 87.7% | — | — | 84.0% |
| AIME-25 | 88.9% | — | — | — |
| MMMU | — | — | — | 72.4% |
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