A company called OpenAI has just released two new artificial intelligence models, called o3 and o4-mini. These models are special because they can stop and think before answering a question, rather than just giving a quick response. The o3 model is the most advanced one OpenAI has made so far, and it's really good at things like math, coding, and understanding science and pictures. The o4-mini model is also very smart, but it's a smaller version that can still do a lot of things well. This is an exciting development in the field of artificial intelligence, and it could lead to more intelligent and helpful machines in the future.