The new model is available in ChatGPT for the web, as well as via the API ... use it if you are a free user by picking Reason in the message composer, according to OpenAI.

OpenAI CEO Sam Altman teased exactly two weeks ago that o3-mini would ship in “a couple of weeks,” and it’s arriving on time ...

The o3-mini model can be used on the free tier of ChatGPT by selecting the "Reason" feature in ChatGPT, with rate limits ...

Free users need to tap the “Reason” button in the prompt window to activate it, while paid subscribers can simply select it from the drop-down model selection menu. As with most of OpenAI’s ...

White House AI czar David Sacks alleged Tuesday that DeepSeek had used OpenAI’s data outputs to train its latest models ...

OpenAI o3-mini is now available in ChatGPT and the API. Pro users will have unlimited access to o3-mini and Plus & Team users will have triple the rate limits (vs o1-mini). Free users can try o3-mini ...

Beyond investor and CEO panic, DeepSeek presents a host of security concerns. Here's what the experts think you should know.

OpenAI introduces o3-mini model, offering exceptional STEM reasoning capabilities with low costs and reduced latency.

OpenAI has announced the release of OpenAI o3-mini, a new AI model built to deliver cost-effective reasoning with improved ...