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 o3OpenAI |  Qwen3 235BAlibaba | Qwen3.6-27B Alibaba |  DeepSeek-R1DeepSeek | |
|---|---|---|---|---|
| Vendor | OpenAI | Alibaba | Alibaba | DeepSeek |
| Family | o-series | Qwen | Qwen | DeepSeek |
| Release date | 2025-04-16 | 2025-04-29 | 2026-04-22 | 2025-01-20 |
| Context window | 200,000 tokens | 128,000 tokens | 262,144 tokens | 128,000 tokens |
| Parameters | — | 235B | 27B (dense) | 671B |
| Modality | text, vision | text | text, vision, video | text |
| License | proprietary | Apache-2.0 | Apache-2.0 | MIT |
| Source | proprietary | open weights | open weights | open weights |
| Description | Reasoning-focused model in the o-series. | Predecessor to the Qwen3.6 family. | Alibaba's first dense open-weight in the 3.6 family. Strong agentic-coding scores (77.2 SWE-bench Verified, matching Claude 4.5 Opus on Terminal-Bench 2.0). Supports 201 languages and multimodal text/image/video input. | Reasoning-focused open-weight model. |
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