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 o3OpenAI |  Qwen3.6-27BAlibaba |  Claude 4.7 OpusAnthropic |  Gemini 2.5 Pro | |
|---|---|---|---|---|
| Vendor | OpenAI | Alibaba | Anthropic | |
| Family | o-series | Qwen | Claude | Gemini |
| Release date | 2025-04-16 | 2026-04-22 | 2026-04-16 | 2025-03-25 |
| Context window | 200,000 tokens | 262,144 tokens | 1,000,000 tokens | 2,000,000 tokens |
| Parameters | — | 27B (dense) | — | — |
| Modality | text, vision | text, vision, video | text, vision | text, vision, audio, video |
| License | proprietary | Apache-2.0 | proprietary | proprietary |
| Source | proprietary | open weights | proprietary | proprietary |
| Description | Reasoning-focused model in the o-series. | 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. | Anthropic's previous Opus flagship — superseded by Opus 4.8 on May 28, 2026 (42-day cycle). Optimized for complex reasoning and coding. Improved software engineering, long-running coding tasks, and higher-resolution vision over Claude 4.6. | Predecessor to Gemini 3 Pro. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | — | 78.9% | 88.2% | 84.1% |
| GPQA-D | 87.7% | — | 90.1% | 84.0% |
| HumanEval | — | 91.5% | 97.4% | — |
| Aider | — | 70.2% | 91.2% | — |
| AIME-25 | 88.9% | — | 93.5% | — |
| LiveCB | — | — | 80.2% | — |
| MMMU | — | 70.3% | 79.0% | 72.4% |
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