OpenAI o3 and o4-mini

Introducing OpenAI o3 and o4-mini—our smartest and most capable models to date.

For the first time, our reasoning models can agentically use and combine every tool within ChatGPT, including web search, Python, image analysis, file interpretation, and image generation. pic.twitter.com/rDaqV0x0wE

— OpenAI (@OpenAI) April 16, 2025