TIME100 AI 2026 · Leaders

Sam Altman

CEO, OpenAI

OpenAI's board fired him in November 2023, and he was back in charge five days later after more than 700 of 770 employees threatened to quit.

Born
1985-04-22, Chicago, Illinois, United States
Now
CEO, OpenAI
Studied
Stanford University

Interesting facts

  • Early start

    Left Stanford after two years to build Loopt, a location-sharing app he started at 19 and sold for $43.4 million in 2012.

    en.wikipedia.org
  • Numbers

    Ran Y Combinator from 2014 to 2019; the accelerator had funded about 1,900 companies when he left.

    britannica.com
  • In their words

    Credits poker with teaching him how to make decisions with very imperfect information.

    britannica.com
  • Side project

    Co-founded Merge Labs in 2026, a brain-computer interface lab, years after writing an essay about humans merging with machines.

    openai.com
  • Connection

    Stepped down as chair of nuclear company Oklo in 2025 and fusion company Helion in 2026 as OpenAI sought power deals with them.

    techcrunch.com

Career

  • OpenAICEO2015 to now
  • Hydrazine CapitalCo-founder2012 to now
  • Y CombinatorPresident2011–2019
  • LooptCo-founder and CEO2005–2012

Education

  • Attended, left without a degree, Computer science, Stanford University

Also on the list, from the same companies

All sources

Researched with Autumn: describe the people you want to understand and get a table with a source on every cell.

Researched with Autumn from public sources · Updated 2026-10-30

Photos: Sam Altman Steve Jurvetson, CC BY 2.0

Researched by Autumn, the search for people and companies. The list is TIME's; Autumn is not affiliated with TIME.