According to ChainCatcher, OpenAI founder and CEO Sam Altman posted on social media that major personnel changes are taking place at the top of the company. Chief Technology Officer Mira Murati, Chief Scientist Bob and another executive Barret will leave. Altman said these decisions were independent and friendly. Mark will take over as senior vice president of the research department and lead the research team with Chief Scientist Jakub. Josh Achiam will serve as director of mission alignment, Kevin and Srinivas will continue to lead the application team, and Matt Knight will serve as chief information security officer. Altman emphasized that although the change was sudden, the leadership change was a natural result of the company's rapid development. He plans to refocus his energy on the company's technology and products, and will further discuss these changes at the general meeting.