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 Gemini 2.5 Pro |  DeepSeek-V3.1DeepSeek |  o3OpenAI | DeepSeek-V4-Pro DeepSeek | |
|---|---|---|---|---|
| Vendor | DeepSeek | OpenAI | DeepSeek | |
| Family | Gemini | DeepSeek | o-series | DeepSeek |
| Release date | 2025-03-25 | 2025-08-21 | 2025-04-16 | 2026-04-22 |
| Context window | 2,000,000 tokens | 128,000 tokens | 200,000 tokens | 1,000,000 tokens |
| Parameters | — | 671B | — | 1.6T (49B active) |
| 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. | Large MoE open-weight model. Predecessor to DeepSeek-V4. | Reasoning-focused model in the o-series. | DeepSeek's flagship open-weight MoE. 1.6T parameters with 49B activated, 1M-token context, and a hybrid attention scheme (CSA + HCA) that delivers long-context inference at ~27% of V3.2's FLOPs. |
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Mistral Large 2maxMax 4 models. Remove one to add another.