OpenAI founder Samuel Harris Altman was born on April 22, 1985, in Chicago, Illinois, and grew up in St. Louis, Missouri. He is the eldest of four siblings. His mother was a dermatologist, and his father, who passed away in May 2018, was a real estate broker.

Altman studied computer science at Stanford University, where he co-founded "Loopt," a location-based social networking app that helped him enter the tech industry. He dropped out without earning a degree.

In 2011, Sam Altman joined "Y Combinator," a well-known startup accelerator, and became…