Beyond the reported performance improvements, OpenAI announced a substantial price reduction for developers. O3-pro costs $20 ...

The release notes for OpenAI’s o3-proread, in part: “Like o1-pro, o3-pro is a version of our most intelligent model, o3, designed to think longer and provide the most reliable responses.

April 17, 2025: OpenAI has released o3 and 04-mini, two reasoning AI models designed to be extra good at programming, math, ...

O3-Pro is the first release under OpenAI’s new naming system, which replaces version numbers with a monthly format. The “O” marks it as the June 2025 release.

OpenAI announced that its o3-pro model was rolling out to users, but CEO Sam Altman noted that an upcoming open weight model would not release this month. OpenAI o3-pro will be available in the ...

OpenAI today announced o3‑pro, the most powerful AI model it has released so far, marking a significant leap forward in multi-modal reasoning capabilities. The release follows the April launch ...

In its release notes detailing the new model, OpenAI said its evaluations show that reviewers “consistently prefer 03-pro over 03 in every tested category,” especially in domains such as ...

Arthur Gervais, professor in information security at UCL, and Liyi Zhou, a lecturer in computer science at USYD, have ...

Enterprise and Edu users will get access the week after. As o3-pro uses the same underlying model as o3, full safety details can be found in the o3 system card.… — OpenAI (@OpenAI) June 10, 2025 ...