// PERSON
Sam Altman
ROLE FORMER CEOAT Y COMBINATORMENTIONS 3LAST SEEN OCTOBER 15, 2026
// BIO
Sam Altman is an American entrepreneur and investor who has served as CEO of OpenAI since 2019. He previously served as president of Y Combinator from 2014 to 2019, where he was mentored by co-founder Paul Graham. Altman is best known for co-founding OpenAI and overseeing the launch of ChatGPT in November 2022, as well as for his early-stage investments in companies such as Stripe, Reddit, and Helion Energy.
Discussed in
// RECENT MENTIONS
// SIGNALS
3 SIGNALS
01
02
03
mention·The a16z Show·SEPTEMBER 25, 2026
“Paul Graham co-signed Sam Altman famously... he said, like, the five best entrepreneurs... and Sam Altman. And at the time, Sam Altman hadn't had a huge exit yet.”
Source→AI-extracted from podcast / newsletter / paper summaries. May contain errors.