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 GPT-5.5OpenAI |  Qwen3 235BAlibaba | GPT-4.1 OpenAI |  Gemini 2.5 Pro | |
|---|---|---|---|---|
| Vendor | OpenAI | Alibaba | OpenAI | |
| Family | GPT | Qwen | GPT | Gemini |
| Release date | 2026-04-23 | 2025-04-29 | 2025-04-14 | 2025-03-25 |
| Context window | 400,000 tokens | 128,000 tokens | 1,000,000 tokens | 2,000,000 tokens |
| Parameters | — | 235B | — | — |
| Modality | text, vision, audio | text | text, vision | text, vision, audio, video |
| License | proprietary | Apache-2.0 | proprietary | proprietary |
| Source | proprietary | open weights | proprietary | proprietary |
| Description | 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 the Qwen3.6 family. | — | Predecessor to Gemini 3 Pro. |
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