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 o3OpenAI |  Gemini 2.5 Flash |  DeepSeek-V4-ProDeepSeek | Gemini 3 Pro | |
|---|---|---|---|---|
| Vendor | OpenAI | DeepSeek | ||
| Family | o-series | Gemini | DeepSeek | Gemini |
| Release date | 2025-04-16 | — | 2026-04-22 | 2026-04-22 |
| Context window | 200,000 tokens | 1,000,000 tokens | 1,000,000 tokens | 2,000,000 tokens |
| Parameters | — | — | 1.6T (49B active) | — |
| Modality | text, vision | text, vision, audio | text | text, vision, audio, video |
| License | proprietary | proprietary | MIT | proprietary |
| Source | proprietary | proprietary | open weights | proprietary |
| Description | 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. | Google DeepMind's flagship multimodal model. Best-in-class for multimodal understanding and agentic / vibe coding workflows. A "Deep Think" reasoning mode is available to AI Ultra subscribers. |
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Mistral Large 2maxMax 4 models. Remove one to add another.