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 Gemini 2.5 Pro |  DeepSeek-R1DeepSeek |  o3OpenAI | Gemini 3 Pro | |
|---|---|---|---|---|
| Vendor | DeepSeek | OpenAI | ||
| Family | Gemini | DeepSeek | o-series | Gemini |
| Release date | 2025-03-25 | 2025-01-20 | 2025-04-16 | 2026-04-22 |
| Context window | 2,000,000 tokens | 128,000 tokens | 200,000 tokens | 2,000,000 tokens |
| Parameters | — | 671B | — | — |
| Modality | text, vision, audio, video | text | text, vision | text, vision, audio, video |
| License | proprietary | MIT | proprietary | proprietary |
| Source | proprietary | open weights | proprietary | proprietary |
| Description | Predecessor to Gemini 3 Pro. | Reasoning-focused open-weight model. | Reasoning-focused model in the o-series. | Google DeepMind's flagship multimodal model. Best-in-class for multimodal understanding and agentic / vibe coding workflows. A "Deep Think" reasoning mode is available to AI Ultra subscribers. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | 84.1% | — | — | 87.1% |
| GPQA-D | 84.0% | — | 87.7% | 88.6% |
| HumanEval | — | — | — | 96.5% |
| Aider | — | — | — | 84.8% |
| AIME-25 | — | 79.8% | 88.9% | 92.8% |
| LiveCB | — | — | — | 76.1% |
| MMMU | 72.4% | — | — | 84.3% |
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