OpenAI CEO Sam Altman posted on X: "I believe The Wall Street Journal (WSJ) is currently the best newspaper in the United States, but just hours after we announced the o3 model, they published an article titled 'The Next Great Leap in AI Is Behind Schedule and Crazy Expensive'?!" Previously, it was reported that OpenAI is currently developing a new generation of reasoning models that will think more deeply about user inquiries. In terms of naming, they may skip the 'o2' designation to avoid trademark conflicts with the UK telecom operator O2, and go directly to 'o3'.