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 GPT-5.5OpenAI |  Gemini 3 Pro |  Grok 4xAI |  Qwen3 235BAlibaba | |
|---|---|---|---|---|
| Vendor | OpenAI | xAI | Alibaba | |
| Family | GPT | Gemini | Grok | Qwen |
| Release date | 2026-04-23 | 2026-04-22 | 2025-07-09 | 2025-04-29 |
| Context window | 400,000 tokens | 2,000,000 tokens | 256,000 tokens | 128,000 tokens |
| Parameters | — | — | — | 235B |
| Modality | text, vision, audio | text, vision, audio, video | text | text |
| License | proprietary | proprietary | proprietary | Apache-2.0 |
| Source | proprietary | proprietary | proprietary | open weights |
| 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. | 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. | — | Predecessor to the Qwen3.6 family. |
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