OpenAI o3-pro can search the web, analyse files, process visual inputs, use Python, and personalise responses using memory.
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 be released this month.
OpenAI o3-pro will be available in the model picker for Pro and Team users, replacing OpenAI o1-pro. Enterprise and Edu users will get access after a week, per the company.
“In expert evaluations, reviewers consistently prefer OpenAI o3-pro over o3, highlighting its improved performance in key domains—including science, education, programming, data analysis, and writing. Reviewers also rated o3-pro consistently higher for clarity, comprehensiveness, instruction-following, and accuracy,” noted OpenAI.
OpenAI o3-pro can search the web, analyse files, process visual inputs, use Python, and personalise responses using memory, per the company.
“o3-pro is rolling out now for all chatgpt pro users and in the api. it is really smart! [I] didnt believe the win rates relative to o3 the first time i saw them,” posted OpenAI CEO Sam Altman on X on Wednesday (June 11, 2025).
However, a highly-anticipated open weights model that was set to be released will require more time, according to Altman.
“[W]e are going to take a little more time with our open-weights model, i.e. expect it later this summer but not june. [O]ur research team did something unexpected and quite amazing and we think it will be very very worth the wait, but needs a bit longer,” posted Altman on X on Wednesday.
An open weights model, while not open source, gives technical users more flexibility to refine the model to suit their own needs and specifications. OpenAI called this model its “first open language model since GPT‑2,” which came out in 2019.
OpenAI announced this week that its annualised revenue run rate hit $10 billion as of June, putting it on track to hit its targets for 2025.
