Structured facts and database records for this person.
Structured Facts
Database Records
Birth Year
1981
All Facts
Background
Notable ForCo-founder of GiveWell and Open Philanthropy; influential figure in effective altruism; author of 'Most Important Century' blog series on transformative AI—view →
General
Career History
3| Organization | Title | Start | Source | Notes | End | Source check |
|---|---|---|---|---|---|---|
| Anthropic | Member of Technical Staff | 2025-01 | fortune.com | Joined Anthropic in early 2025; works on responsible scaling policy | — | Not checked |
| Open Philanthropy | Co-CEO | 2014-01 | openphilanthropy.org | Co-CEO; directed major AI safety funding; stepped back from operational role in 2024 | 2024 | Not checked |
| GiveWell | Co-founder & Co-Executive Director | 2007-01 | givewell.org | Co-founded GiveWell with Elie Hassenfeld | 2014 | Not checked |
▶Internal Metadata
| ID: | sid_eQh3ZhWv8D |
| Stable ID: | sid_eQh3ZhWv8D |
| Wiki ID: | E156 |
| Type: | person |
| YAML Source: | packages/factbase/data/fb-entities/holden-karnofsky.yaml |
| Facts: | 6 structured |
| Records: | 3 in 1 collection |