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 Grok 4xAI |  DeepSeek-V4-FlashDeepSeek |  GPT-5.5OpenAI |  Gemini 2.5 Pro | |
|---|---|---|---|---|
| Vendor | xAI | DeepSeek | OpenAI | |
| Family | Grok | DeepSeek | GPT | Gemini |
| Release date | 2025-07-09 | 2026-04-22 | 2026-04-23 | 2025-03-25 |
| Context window | 256,000 tokens | 1,000,000 tokens | 400,000 tokens | 2,000,000 tokens |
| Parameters | — | 284B (13B active) | — | — |
| Modality | text | text | text, vision, audio | text, vision, audio, video |
| License | proprietary | MIT | proprietary | proprietary |
| Source | proprietary | open weights | proprietary | proprietary |
| Description | — | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. | 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. |
| Links |
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Gemini 2.5 Flashmax
Claude 4.6 SonnetmaxGPT-5.5✓DeepSeek-V4-Flash✓
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