OpenAI’s latest machine learning mode has arrived. On Friday, the company released o3-mini and it's available to try now. What's more, for the first time OpenAI is making one of its "reasoning" models ...

OpenAI introduced GPT-4o mini on Thursday, its latest small AI model. The company says GPT-4o mini, which is cheaper and faster than OpenAI’s current cutting-edge AI models, is being released for ...

A mere two days after announcing GPT-4.1, OpenAI is releasing not one but two new models. The company today announced the public availability of o3 and o4-mini. Of the former, OpenAI says o3 is its ...

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OpenAI announced on Wednesday the launch of o3 and o4-mini, new AI reasoning models designed to pause and work through questions before responding. The company calls o3 its most advanced reasoning ...

First reported by TechCrunch, OpenAI's system card detailed the PersonQA evaluation results, designed to test for hallucinations. From the results of this evaluation, o3's hallucination rate is 33 ...

OpenAI on Thursday announced GPT-4o mini, a smaller and less expensive version of its GPT-4o AI model. OpenAI is one of a number of AI companies to develop a version of its best “foundation” model ...

OpenAI just released o3-mini, a reasoning model that’s faster, cheaper, and more accurate than its predecessor. On Thursday, Microsoft announced that it’s rolling OpenAI's reasoning model o1 out to ...

UPDATE: Apr. 16, 2025, 2:18 PM EDT Now that the OpenAI livestream has ended, this article has been updated with the latest information about the o3 and o4-mini launch. OpenAI's o3 and o4-mini models ...