OpenAI has been teasing news of a new open-weight model for a while now, originally planning for an early summer release. This would offer reasoning capabilities similar to OpenAI’s o-series models, but open to the public.

OpenAI this week announced an improved version of its o3 generative AI reasoning model, saying it performed better on benchmarks and is designed to spend more time thinking on difficult problems. The new model, called o3-pro, is now available for Pro and Team users in ChatGPT and API users, and will come to Enterprise and Edu users next week.

The latest version of OpenAI’s most intelligent AI model, o3-pro, outperforms previous models on benchmarks for math, science, and coding.