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Holden Karnofsky

Also known as: Holden

Co-founder of GiveWell and Open Philanthropy; influential figure in effective altruism; author of 'Most Important Century' blog series on transformative AI

Current Role
Member of Technical Staff, Anthropic
Organization
Anthropic
Born
1981
Age ~45

Expert Positions1 topics

TopicViewEstimateConfidenceDate
Will We Get Adequate Warning?Probably65%medium2022

Career History4

Member of Technical StaffCurrent
Jan 2025 – present
Co-founder & Co-CEOFounder
Open Philanthropy
2014 – 2024
Co-founder & Co-Executive DirectorFounder
GiveWell
2007 – 2014
Analyst
Bridgewater Associates
2003 – 2007

Education

BA in Social Studies, Harvard University

Publications & Resources2

AI Could Defeat All Of Us Combined
2022Blog PostAI Risk Essays & Books
Most Important Century (blog series)
2021Blog SeriesAI Risk Essays & Books

No funding connections recorded.

Links

Organization Roles1

AnthropicCurrent
Member of Technical Staff
Jan 2025 – present

Facts8

People
Employed ByAnthropic
Role / TitleMember of Technical Staff, Anthropic
Biographical
Birth Year1981
EducationBA in Social Studies, Harvard University
Notable ForCo-founder of GiveWell and Open Philanthropy; influential figure in effective altruism; author of 'Most Important Century' blog series on transformative AI
Social Media@HoldenKarnofsky
Wikipediahttps://en.wikipedia.org/wiki/Holden_Karnofsky
General
Websitehttps://www.cold-takes.com
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