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 Gemini 3.5 |  o3OpenAI |  DeepSeek-R1DeepSeek | Gemini 2.5 Pro | |
|---|---|---|---|---|
| Vendor | OpenAI | DeepSeek | ||
| Family | Gemini | o-series | DeepSeek | Gemini |
| Release date | 2026-05-20 | 2025-04-16 | 2025-01-20 | 2025-03-25 |
| Context window | 2,000,000 tokens | 200,000 tokens | 128,000 tokens | 2,000,000 tokens |
| Parameters | — | — | 671B | — |
| Modality | text, vision, audio, video | text, vision | text | text, vision, audio, video |
| License | proprietary | proprietary | MIT | proprietary |
| Source | proprietary | proprietary | open weights | proprietary |
| Description | Google DeepMind's next-gen Gemini — positioned as "frontier intelligence with action". Built for complex agentic workflows. Announced at Google I/O 2026. | Reasoning-focused model in the o-series. | Reasoning-focused open-weight model. | Predecessor to Gemini 3 Pro. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | 88.9% | — | — | 84.1% |
| GPQA-D | 91.2% | 87.7% | — | 84.0% |
| AIME-25 | 96.1% | 88.9% | 79.8% | — |
| MMMU | 86.0% | — | — | 72.4% |
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Claude 4.8 Opusmax
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Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 Pro✓DeepSeek-R1✓
Mistral Large 2maxMax 4 models. Remove one to add another.