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 GPT-5 ProOpenAI |  Qwen3.6-27BAlibaba | o3 OpenAI |  Gemini 2.5 Pro | |
|---|---|---|---|---|
| Vendor | OpenAI | Alibaba | OpenAI | |
| Family | GPT | Qwen | o-series | Gemini |
| Release date | 2025-08-07 | 2026-04-22 | 2025-04-16 | 2025-03-25 |
| Context window | 400,000 tokens | 262,144 tokens | 200,000 tokens | 2,000,000 tokens |
| Parameters | — | 27B (dense) | — | — |
| Modality | text, vision, audio | text, vision, video | text, vision | text, vision, audio, video |
| License | proprietary | Apache-2.0 | proprietary | proprietary |
| Source | proprietary | open weights | proprietary | proprietary |
| Description | Higher-reasoning variant of GPT-5, used for harder scientific and research tasks (e.g., immunology breakthroughs at NIH). Same 400K context as GPT-5; trades latency for depth. | 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 model in the o-series. | Predecessor to Gemini 3 Pro. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | — | 78.9% | — | 84.1% |
| GPQA-D | — | — | 87.7% | 84.0% |
| HumanEval | — | 91.5% | — | — |
| Aider | — | 70.2% | — | — |
| AIME-25 | — | — | 88.9% | — |
| MMMU | — | 70.3% | — | 72.4% |
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