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 Gemini 3 Pro |  GPT-5.5OpenAI |  Grok 4xAI | Gemini 2.5 Pro | |
|---|---|---|---|---|
| Vendor | OpenAI | xAI | ||
| Family | Gemini | GPT | Grok | Gemini |
| Release date | 2026-04-22 | 2026-04-23 | 2025-07-09 | 2025-03-25 |
| Context window | 2,000,000 tokens | 400,000 tokens | 256,000 tokens | 2,000,000 tokens |
| Parameters | — | — | — | — |
| Modality | text, vision, audio, video | text, vision, audio | text | text, vision, audio, video |
| License | proprietary | proprietary | proprietary | proprietary |
| Source | proprietary | proprietary | proprietary | proprietary |
| Description | 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. | OpenAI's smartest and most intuitive model — successor to GPT-5, with major coding, research, and document workflow gains. GPT-5.5 Pro variant also available for heavier reasoning. | — | Predecessor to Gemini 3 Pro. |
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DeepSeek-V4-Flashmax
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