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 o3OpenAI |  Qwen3 235BAlibaba |  Gemini 3 Pro | GPT-5 OpenAI | |
|---|---|---|---|---|
| Vendor | OpenAI | Alibaba | OpenAI | |
| Family | o-series | Qwen | Gemini | GPT |
| Release date | 2025-04-16 | 2025-04-29 | 2026-04-22 | 2025-08-07 |
| Context window | 200,000 tokens | 128,000 tokens | 2,000,000 tokens | 400,000 tokens |
| Parameters | — | 235B | — | — |
| Modality | text, vision | text | text, vision, audio, video | text, vision, audio |
| License | proprietary | Apache-2.0 | proprietary | proprietary |
| Source | proprietary | open weights | proprietary | proprietary |
| Description | Reasoning-focused model in the o-series. | Predecessor to the Qwen3.6 family. | 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 flagship general-purpose model. Superseded by GPT-5.5 in April 2026. |
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