On the ninth day of its holiday-themed stretch of product announcements known as "12 Days of OpenAI," OpenAI is rolling out its most advanced model, o1, to third-party developers through its ...

OpenAI surprised the world yesterday afternoon by announcing not "Strawberry" as rumored, nor GPT-5, but a new family of "reasoning" large language models (LLMs) called o1 that aims to offer high ...