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 Grok 4xAI |  Gemini 2.5 Pro |  DeepSeek-V4-FlashDeepSeek |  GPT-5OpenAI | |
|---|---|---|---|---|
| Vendor | xAI | DeepSeek | OpenAI | |
| Family | Grok | Gemini | DeepSeek | GPT |
| Release date | 2025-07-09 | 2025-03-25 | 2026-04-22 | 2025-08-07 |
| Context window | 256,000 tokens | 2,000,000 tokens | 1,000,000 tokens | 400,000 tokens |
| Parameters | — | — | 284B (13B active) | — |
| Modality | text | text, vision, audio, video | text | text, vision, audio |
| License | proprietary | proprietary | MIT | proprietary |
| Source | proprietary | proprietary | open weights | proprietary |
| Description | — | Predecessor to Gemini 3 Pro. | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. |
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Gemini 2.5 Flashmax
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Mistral Large 2maxMax 4 models. Remove one to add another.