In response to pressure from rivals including Chinese AI company DeepSeek, OpenAI is changing the way its newest AI model, o3-mini, communicates its step-by-step “thought” process. On Thursday, OpenAI announced that free and paid users of ChatGPT, the company’s AI-powered chatbot platform, will see an updated “chain of thought” that shows more of the model’s “reasoning” steps and how it arrived at answers to questions. Subscribers to premium ChatGPT plans who use o3-mini in the “high reasoning” ...