Samuel Harris Altman (born April 22, 1985) is an American entrepreneur and investor best known as the CEO of OpenAI since 2019 (he was briefly fired and reinstated in November 2023).[1] He is also the chairman of clean energy companies Oklo Inc. and Helion Energy.[2] Altman is considered to be one of the leading figures of the AI boom.[3][4][5] He dropped out of Stanford University after two years