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 Gemini 2.5 Pro |  DeepSeek-V4-FlashDeepSeek |  o3OpenAI | DeepSeek-R1 DeepSeek | |
|---|---|---|---|---|
| Vendor | DeepSeek | OpenAI | DeepSeek | |
| Family | Gemini | DeepSeek | o-series | DeepSeek |
| Release date | 2025-03-25 | 2026-04-22 | 2025-04-16 | 2025-01-20 |
| Context window | 2,000,000 tokens | 1,000,000 tokens | 200,000 tokens | 128,000 tokens |
| Parameters | — | 284B (13B active) | — | 671B |
| Modality | text, vision, audio, video | text | text, vision | text |
| License | proprietary | MIT | proprietary | MIT |
| Source | proprietary | open weights | proprietary | open weights |
| Description | Predecessor to Gemini 3 Pro. | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. | Reasoning-focused model in the o-series. | Reasoning-focused open-weight model. |
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Gemini 2.5 Flashmax
Claude 4.6 SonnetmaxGPT-5.5maxDeepSeek-V4-Flash✓
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Grok 4maxQwen3 235Bmaxo3✓GPT-4.1max
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Mistral Large 2maxMax 4 models. Remove one to add another.