The journal
Open the journal →The conversation starts in the journal — be the first to post.
About Holden Karnofsky
Holden G. Karnofsky is an American nonprofit executive. Karnofsky co-founded the charity evaluator GiveWell with Elie Hassenfeld in 2007. In 2014, he co-founded the grantmaking organization Open Philanthropy, and was its CEO and later co-CEO until 2023. He joined Anthropic in 2025.
Everything about Holden Karnofsky →- Born
- July 1981