Sam Altman

Investor

CEO of OpenAI; former President of Y Combinator

San Francisco, CA

30 Under 30 2015 · Venture Capital

About

Sam Altman ran Y Combinator from 2014 to 2019 before leaving to lead OpenAI, where as CEO he oversaw the launch of ChatGPT and the models that followed. Earlier he co-founded the location startup Loopt and the angel vehicle Hydrazine Capital, and his personal bets have included Stripe, Reddit, and Helion. He remains OpenAI's chief executive as of mid-2026.

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Latest on 𝕏

Sam Altman @sama

team humanity https://t.co/Z75TuFp56E

Aug 1, 2026 · ♥ 2555 · ⇄ 111

Sam Altman @sama

cool use case of chatgpt work i heard last night: connect your family calendars and explain your kids' interests. every morning for the drive to school, have it make a podcast that talks about one kid's soccer game that afternoon, one kid's upcoming birthday, some news, etc.

Jul 31, 2026 · ♥ 11693 · ⇄ 355

Sam Altman @sama

i see your moore's law and i raise you 20x https://t.co/fIgoPxhMbW

Jul 31, 2026 · ♥ 7812 · ⇄ 293