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    "body": "o3 是 OpenAI 于 2025 年 4 月 16 日发布的旗舰推理模型，首次实现推理模型在 ChatGPT 内自主组合使用全部工具。[^s1]\n\n## 发布背景\n发布时上下文窗口为200K tokens，最大输出为100,000 tokens，API 标识为 o3-2025-04-16。[^s1]\no1 的继任推理模型，2025-04-16 与 o4-mini 一同发布，首次实现推理模型在 ChatGPT 内自主组合使用全部工具，并支持视觉推理（直接在思维链中处理图像）。[^s1]\n\n## 定价与获取\n发布时每百万 token 输入 10 美元、输出 40 美元；2025-06-10 降价 80% 后为输入 2 美元、输出 8 美元。[^s1]\n\n## 性能表现\n以下为OpenAI公布的自家评测结果，尚未经独立复现。[^s1]\n- AIME 2024：96.7%（高于 o1 的 74.3%）[^s1]\n- GPQA Diamond：87.7%（高于 o1，厂商称超越人类专家平均水平约 70%）[^s1]\n- SWE-bench Verified：71.7%（高于 o1 的 48.9%）[^s1]\n\n## 主要特点\n- 2025-06-10 价格下调 80%，由发布时的每百万 token 输入 10 美元、输出 40 美元降至输入 2 美元、输出 8 美元，同日推出 o3-pro。[^s1]\n- OpenAI 于 2026-06-11 通知退役，o3 及 o3-2025-04-16 定于 2026-12-11 从 API 移除，官方推荐替代为 GPT-5.6 Sol；其在 ChatGPT 的旗舰推理地位此前已被 GPT-5 取代。[^s1]\n\n## 定位与后续\nOpenAI o-series 的旗舰推理模型，继任 o1，主打工具调用与视觉推理，曾为最强推理模型，后被 GPT-5 系列取代并定于 2026-12-11 退役，由 GPT-5.6 Sol 接替。 其前代为[[work_o1|o1]]。[^s1]",
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