FrontierThe story, in brief
Introducing OpenAI o3 and o4-mini
OpenAI just released o3 and o4-mini. Here's what changes for builders.
The KeyNews take
Why it matters
OpenAI's next-generation reasoning models with full tool access represent a significant capability leap. This is a direct signal of where frontier AI is heading—toward more autonomous, multi-step task execution.
The key facts
5 to knowOpenAI releases o3 and o4-mini models
Both models include full tool access capability
Described as 'smartest and most capable models to date'
Published April 16, 2025
Positions OpenAI's reasoning tier ahead of competitors
Go to the source
OpenAI Blogopenai.com
Publisher excerpt: Our smartest and most capable models to date with full tool access