Co-founder of ChatGPT-maker OpenAI is back in office after “longest vacation” of his life

OpenAI co-founder Greg Brockman is back after a three-month break. Brockman took time off after nine years with the company. His return follows a series of high-profile departures from OpenAI. These include CTO Mira Murati and research chief Bob McGrew. Co-founder John Schulman also left to join rival Anthropic. Brockman is a close ally of OpenAI CEO Sam Altman.