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 o3OpenAI |  DeepSeek-R1DeepSeek |  Gemini 2.5 Pro | |
|---|---|---|---|
| Vendor | OpenAI | DeepSeek | |
| Family | o-series | DeepSeek | Gemini |
| Release date | 2025-04-16 | 2025-01-20 | 2025-03-25 |
| Context window | 200,000 tokens | 128,000 tokens | 2,000,000 tokens |
| Parameters | — | 671B | — |
| Modality | text, vision | text | text, vision, audio, video |
| License | proprietary | MIT | proprietary |
| Source | proprietary | open weights | proprietary |
| Description | Reasoning-focused model in the o-series. | Reasoning-focused open-weight model. | Predecessor to Gemini 3 Pro. |
| Links | |||
| Benchmarks | |||
| MMLU-Pro | — | — | 84.1% |
| GPQA-D | 87.7% | — | 84.0% |
| AIME-25 | 88.9% | 79.8% | — |
| MMMU | — | — | 72.4% |
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Claude 4.8 Opus+
Qwen3.7-Max+Gemini 3.5+Gemini Omni+GPT-5.5+Qwen3.6-27B+DeepSeek-V4-Flash+DeepSeek-V4-Pro+Gemini 3 Pro+Claude 4.7 Opus+Claude 4.6 Sonnet+Claude 4.5 Haiku+DeepSeek-V3.1+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+