
Coefficient Giving
Runs Coefficient Giving as a philanthropic funder across global health, safety, and strategic technology impact programs.
Coefficient Giving, formerly Open Philanthropy, is a U.S. philanthropic funder and advisor that has directed more than $5 billion in grants since 2014. It works with donors who want high-impact giving, and its founding relationship is with Good Ventures, the foundation of Cari Tuna and Dustin Moskovitz.
The organization says it runs 14 cause-area funds and the record gives it $1 billion in annual grant scale. Its work spans global health, biosecurity, AI safety, animal welfare, scientific research, and abundance, with a mix of proactive grantmaking and open calls for specific requests for proposals. Open calls in the record cover biosecurity, effective giving and careers, humane fish slaughter, AI governance, and generic drug repurposing.
It also advises other philanthropists, usually starting from researched opportunities rather than unsolicited pitches, and historically funds only about 1 to 2 percent of unsolicited proposals. For applicants, the bar is strategic fit and evidence that the project belongs in one of its focused funds, not a broad general-interest appeal.