Sam Altman is an American entrepreneur and investor best known for leading OpenAI, the artificial intelligence research organization behind ChatGPT. Born in 1985, he started his career by cofounding the mobile social app Loopt, which later sold, and then became a prominent figure in the startup world, eventually serving as president of Y Combinator from 2014 to 2019. He has been OpenAI’s CEO since 2019, guiding the organization through rapid AI development and deployment, including the launch of widely used AI tools like ChatGPT and DALL·E. Altman is also known for his outspoken views on AI safety, regulation, and the broad societal implications of advanced artificial intelligence. For more up-to-date details about his roles, net worth, and recent milestones, you may want to check current biographical sources.