最新报道:OpenAI's ChatGPT continues rapid growth, reaching 700 million weekly active users in August 2025, quadrupling its user base in a year. The company launched GPT-5, offering "Auto," "Fast," and "Thinking" modes while maintaining legacy models. CEO Sam Altman addressed initial performance issues during a Reddit AMA, attributing them to technical glitches. OpenAI expanded government and enterprise offerings with a $1/year ChatGPT Enterprise deal for federal agencies and introduced two open-source models (gpt-oss-120b and gpt-oss-20b). The platform added features like Study Mode for education and a general-purpose Agent for task automation, while facing challenges including lawsuits over copyright infringement and concerns about AI therapy risks. Energy consumption remains a focus, with Altman noting queries use minimal resources.