2025年1月31日 · OpenAI o3‑mini is our first small reasoning model that supports highly requested developer features including function calling ⁠, Structured Outputs ⁠, and developer messages ⁠, making it production-ready out of the gate. Like OpenAI o1‑mini and OpenAI o1‑preview, o3‑mini will support streaming ⁠.

O3 Mini delivers powerful logical analysis with unmatched efficiency. Leverage O3 Mini's powerful reasoning capabilities for complex problem-solving and logical analysis. Choose between quick responses and deep analysis with O3 Mini's flexible reasoning modes.

On January 31, 2025, OpenAI released o3-mini to all ChatGPT users (including free-tier) and some API users. OpenAI describes o3-mini as a "specialized alternative" to o1 for "technical domains requiring precision and speed".

2025年2月7日 · 具有中等推理强度的o3-mini在数学、编码和科学方面的表现与o1相当，在包括AIME和GPQA等最具挑战性的推理和智能评估中，o3-mini不仅表现出色，还能提供更快的回复。 专家测试人员的评估显示，o3-mini生成的答案比OpenAI o1-mini更准确、更清晰，推理能力更强。

2025年1月31日 · We are pleased to announce that OpenAI o3-mini is now available in Microsoft Azure OpenAI Service. o3-mini adds significant cost efficiencies compared with o1-mini with enhanced reasoning, with new features like reasoning effort control and tools, while providing comparable or better responsiveness.

2025年1月31日 · OpenAI’s latest model, o3-mini, is now available in GitHub Copilot and GitHub Models, bringing OpenAI’s newest reasoning model to your coding workflow. The o3-mini reasoning model outperforms o1 on coding benchmarks with response times that are comparable to o1-mini, meaning you’ll get improved quality at nearly the same latency.

o3-mini 和 o1-mini 一样是主打低延迟的推理模型。 o3-mini按照推理强度（推理思维链长短）分为low、medium和high三档，其中o3-mini low效果超过o1-mini，o3-mini medium性能和o1相当，而o3-mini high超过o1。 o3-mini暂没有视觉能力（o1支持），但首次支持联网搜索，而且支持函数调用、结构化输出和开发者消息，使其一经推出即可投入生产环境使用。 相比o1-mini 相比，o3 …