Sam Altman
CEO, OpenAI
About
Sam Altman is the CEO of OpenAI, the company behind ChatGPT and GPT-4. Previously, he was president of Y Combinator, one of the world's most successful startup accelerators. Under his leadership, OpenAI has become one of the most influential AI companies in the world, pioneering the development of large language models and making them accessible to the public.
Key Contributions
- Ran Y Combinator during its high-growth era; Tad Friend's 2016 New Yorker profile captured both his ambition and his polarizing style
- Invested across startups and hard-tech bets, including energy, biotech, and identity projects such as Worldcoin
- Co-founded OpenAI around a public-benefit AGI mission, then led its shift toward a capped-profit, product-driven AI company
- Led the 2022 launch of ChatGPT, making conversational LLMs a mainstream interface for work, education, and software
- Built OpenAI's Microsoft partnership and API business, accelerating frontier AI adoption while drawing criticism over closed models and concentrated power
- Became the face of AI governance tensions after his 2023 firing and reinstatement exposed conflict between OpenAI's nonprofit board and commercial momentum
