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 o3OpenAI |  Grok 4xAI |  DeepSeek-V4-ProDeepSeek |  Gemini 2.5 Pro | |
|---|---|---|---|---|
| Vendor | OpenAI | xAI | DeepSeek | |
| Family | o-series | Grok | DeepSeek | Gemini |
| Release date | 2025-04-16 | 2025-07-09 | 2026-04-22 | 2025-03-25 |
| Context window | 200,000 tokens | 256,000 tokens | 1,000,000 tokens | 2,000,000 tokens |
| Parameters | — | — | 1.6T (49B active) | — |
| Modality | text, vision | text | text | text, vision, audio, video |
| License | proprietary | proprietary | MIT | proprietary |
| Source | proprietary | proprietary | open weights | proprietary |
| Description | Reasoning-focused model in the o-series. | — | DeepSeek's flagship open-weight MoE. 1.6T parameters with 49B activated, 1M-token context, and a hybrid attention scheme (CSA + HCA) that delivers long-context inference at ~27% of V3.2's FLOPs. | Predecessor to Gemini 3 Pro. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | — | 82.8% | 84.2% | 84.1% |
| GPQA-D | 87.7% | 87.5% | 82.4% | 84.0% |
| HumanEval | — | — | 95.1% | — |
| Aider | — | 72.5% | 80.1% | — |
| AIME-25 | 88.9% | 86.1% | 88.6% | — |
| LiveCB | — | 65.3% | 72.4% | — |
| MMMU | — | — | — | 72.4% |
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