OpenAI o3-mini

In plain words

OpenAI o3-mini is a reasoning model designed for developers and AI practitioners who need cost-effective solutions for complex problems. It specializes in STEM fields including science, math, and coding tasks. The model supports function calling and structured outputs, making it suitable for programmatic applications. It is accessible through ChatGPT and OpenAI's API, with emphasis on balancing speed and performance without requiring significant computational resources.

written from the facts on this page · September 2026

From the sources

The newest, most cost-efficient reasoning model from OpenAI. Excels at STEM—science, math, & coding. Features include function calling & structured outputs. Available in ChatGPT & the API. Optimized for speed & exceptional performance.

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