OpenAI has unveiled a preview of its new o3 reasoning models, which, CEO Sam Altman said immodestly, begin the “next phase” of AI. The models, announced Friday, did so well on a prominent benchmark ...

For the finale of its 12 Days of OpenAI livestream event, CEO Sam Altman revealed its next foundation model, and successor to the recently announced o1 family of reasoning AIs, dubbed o3 and 03-mini.

OpenAI revealed its latest frontier models, o3 and o3-mini, which the startup said crushes benchmarks set by its prior artificial intelligence models. "We have an exciting one for you today," said CEO ...