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 o3OpenAI |  Llama 4 MaverickMeta | GPT-5.5 OpenAI |  Qwen3.6-27BAlibaba | |
|---|---|---|---|---|
| Vendor | OpenAI | Meta | OpenAI | Alibaba |
| Family | o-series | Llama | GPT | Qwen |
| Release date | 2025-04-16 | 2025-04-05 | 2026-04-23 | 2026-04-22 |
| Context window | 200,000 tokens | 1,000,000 tokens | 400,000 tokens | 262,144 tokens |
| Parameters | — | 400B | — | 27B (dense) |
| Modality | text, vision | text, vision | text, vision, audio | text, vision, video |
| License | proprietary | Llama 4 Community License | proprietary | Apache-2.0 |
| Source | proprietary | open weights | proprietary | open weights |
| Description | Reasoning-focused model in the o-series. | Mixture-of-experts open-weight model from Meta. | 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. | 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. |
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