Sam Altman co-founded Loopt, a location-based social networking app, at the age of 19 while studying at Stanford University. Loopt was one of the first apps to use GPS technology on mobile phones, attracting millions of users. In 2012, he sold Loopt to Green Dot Corporation for $43.4 million, making him a millionaire before turning 30.

Altman joined Y Combinator as a partner in 2009 and quickly rose to prominence. In 2014, he became the president of Y Combinator, succeeding its founder Paul Graham. During his tenure, he oversaw the growth and expansion of the accelerator, supporting hundreds of startups, including Airbnb, Dropbox, and Reddit.

Known for his keen eye for promising startups, Altman has invested in over 100 companies, including big names like Airbnb, Reddit, Dropbox, Stripe, and Coinbase. His portfolio is estimated to be worth over $500 million, making him one of the most successful angel investors in Silicon Valley.

Altman is a strong advocate for Universal Basic Income (UBI). He believes that UBI can help address economic inequality and provide a safety net for people as automation and AI continue to transform the job market. He has funded several UBI experiments to test its feasibility and impact.

As the CEO of OpenAI, Altman has been at the forefront of AI research and development. OpenAI aims to create artificial intelligence that benefits humanity without causing harm. Under his leadership, OpenAI has made significant advancements in AI technology, including the development of GPT-3 and ChatGPT.

Altman has a variety of personal interests, including racing cars and flying planes. He holds a pilot's license and has participated in various car racing competitions. Additionally, he dreams of starting his own airline someday.

Altman is openly gay and a strong supporter of LGBTQ+ rights. He came out to his parents at the age of 16 and has been an advocate for LGBTQ+ issues throughout his career. He lives with his partner, Oliver Mulherin, an Australian software engineer.