Just as OpenAI launched the o3 and o3-mini models for ChatGPT, a report says training for GPT-5 is falling behind and ...

Sam Altman finished the OpenAI "12 days of shipmas" with a reveal of ChatGPT o3 and a new method called deliberative ...

AI founders and investors told TechCrunch that we're now in the "second era of scaling laws," noting how established methods ...

OpenAI CEO Sam Altman saved the biggest reveal for the final day of the company's 'Shipmas' campaign: A preview of its most ...

For 12 days straight, OpenAI unveiled 'new things, big and small.' Here's what's new today and a full round-up of all 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.

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

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

OpenAI ended its “12 Days of OpenAI” product-launch spree by unveiling the successor to its first “reasoning” model.