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 o3OpenAI |  Gemini 2.5 Pro |  DeepSeek-V4-FlashDeepSeek | DeepSeek-V3.1 DeepSeek | |
|---|---|---|---|---|
| Vendor | OpenAI | DeepSeek | DeepSeek | |
| Family | o-series | Gemini | DeepSeek | DeepSeek |
| Release date | 2025-04-16 | 2025-03-25 | 2026-04-22 | 2025-08-21 |
| Context window | 200,000 tokens | 2,000,000 tokens | 1,000,000 tokens | 128,000 tokens |
| Parameters | — | — | 284B (13B active) | 671B |
| Modality | text, vision | text, vision, audio, video | text | text |
| License | proprietary | proprietary | MIT | MIT |
| Source | proprietary | proprietary | open weights | open weights |
| Description | Reasoning-focused model in the o-series. | Predecessor to Gemini 3 Pro. | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. | Large MoE open-weight model. Predecessor to DeepSeek-V4. |
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Mistral Large 2maxMax 4 models. Remove one to add another.