Mira Murati, the chief technology officer at OpenAI, the influential artificial intelligence start-up, said on Wednesday that she would leave the company after working there for more than six years. In a memo she sent to employees and later shared on X,

They are the latest high-profile departures from the ChatGPT maker. CEO Sam Altman expressed his gratitude for Murati’s service and said leadership changes are natural for a fast-growing company.