Reasoning models are supposed to fact-check themselves by producing a step-by-step plan to find a correct answer.

The latest AI model from OpenAI achieved an “impressive leap in performance” but it still hasn’t demonstrated what experts ...

OpenAI has unveiled a slew of new products, models, features, and services over the past two weeks as part of its "12 Days of ...

OpenAI saved its biggest announcement for the last day of its 12-day "shipmas" event. On Friday, the company unveiled o3, the ...

CEO Sam Altman closed out the 12 Days of OpenAI event Friday with a first look at the company's upcoming o3 reasoning model.

The artificial intelligence start-up said the new system, OpenAI o3, outperformed leading A.I. technologies on tests that ...

OpenAI said on Friday it was testing new reasoning AI models, o3 and o3 mini, in a sign of growing competition with rivals ...

For the last day of ship-mas, OpenAI previewed a new set of frontier “reasoning” models dubbed o3 and o3-mini. The Verge ...

Most notably, there’s co-founder Elon Musk, who now runs rival startup xAI, and is in the midst of a heated legal battle with ...

After nearly two weeks of announcements, OpenAI capped off its 12 Days of OpenAI livestream series with a preview of its next ...

Italy's data protection agency said on Friday it fined ChatGPT maker OpenAI 15 million euros ($15.58 million) after closing ...

The new o3 models did so well on a prominent benchmark that some immediately questioned whether OpenAI, had, in fact, ...