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 Gemini 2.5 Pro |  GPT-5OpenAI | Gemini Omni | |
|---|---|---|---|
| Vendor | OpenAI | ||
| Family | Gemini | GPT | Gemini |
| Release date | 2025-03-25 | 2025-08-07 | 2026-05-20 |
| Context window | 2,000,000 tokens | 400,000 tokens | 1,000,000 tokens |
| Parameters | — | — | — |
| Modality | text, vision, audio, video | text, vision, audio | text, vision, audio, video |
| License | proprietary | proprietary | proprietary |
| Source | proprietary | proprietary | proprietary |
| Description | Predecessor to Gemini 3 Pro. | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. | Multimodal Gemini variant introduced at Google I/O 2026 — unified text, image, audio, and video processing in a single model. |
| Links | |||
| Benchmarks | |||
| MMLU-Pro | 84.1% | 85.1% | — |
| GPQA-D | 84.0% | 87.3% | — |
| HumanEval | — | 95.2% | — |
| Aider | — | 85.4% | — |
| AIME-25 | — | 91.0% | — |
| LiveCB | — | 74.5% | — |
| MMMU | 72.4% | 74.1% | 82.5% |
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