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 o3OpenAI |  Gemini 3.5 | Gemini 2.5 Pro |  Llama 4 MaverickMeta | |
|---|---|---|---|---|
| Vendor | OpenAI | Meta | ||
| Family | o-series | Gemini | Gemini | Llama |
| Release date | 2025-04-16 | 2026-05-20 | 2025-03-25 | 2025-04-05 |
| Context window | 200,000 tokens | 2,000,000 tokens | 2,000,000 tokens | 1,000,000 tokens |
| Parameters | — | — | — | 400B |
| Modality | text, vision | text, vision, audio, video | text, vision, audio, video | text, vision |
| License | proprietary | proprietary | proprietary | Llama 4 Community License |
| Source | proprietary | proprietary | proprietary | open weights |
| Description | Reasoning-focused model in the o-series. | Google DeepMind's next-gen Gemini — positioned as "frontier intelligence with action". Built for complex agentic workflows. Announced at Google I/O 2026. | Predecessor to Gemini 3 Pro. | Mixture-of-experts open-weight model from Meta. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | — | 88.9% | 84.1% | 80.5% |
| GPQA-D | 87.7% | 91.2% | 84.0% | — |
| AIME-25 | 88.9% | 96.1% | — | — |
| MMMU | — | 86.0% | 72.4% | 68.5% |
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