Samuel Harris Altman (/ˈɔːltmən/ AWLT-mən; born 1985) is an American entrepreneur, investor, and programmer. He was the co-founder of Loopt and is the current CEO of OpenAI.[1] He was the president of Y Combinator and was briefly the CEO of Reddit. Altman invests in nuclear energy projects and technology companies. Early life and education[edit] Altman was born into a Jewish family,[2] and grew up