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.

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 ...

For now, OpenAI is betting on performance, pricing, and developer tools to maintain its edge. “o3-pro and the price cut mark an inflection point,” Singh concluded.

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 ...

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

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 ...

OpenAI has also placed a strong emphasis on safety in the development of o3-pro. Detailed evaluations, outlined in the o3 system card, demonstrate the model’s adherence to rigorous safety standards.

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