Also known as: Open Philanthropy, OP
Coefficient Giving (formerly Open Philanthropy) has directed $4B+ in grants since 2014, including $336M to AI safety (~60% of external funding). The organization spent ~$50M on AI safety in 2024, with 68% going to evaluations/benchmarking, and launched a $40M Technical AI Safety RFP in 2025 covering 8 research areas.
Facts
13Other Data
| Dimension | Rating | Evidence | Assessor | |
|---|---|---|---|---|
| ai-safety-focus | Leading funder | $336M+ to AI safety since 2014; ~60% of external AI safety funding | editorial | |
| application-model | Rolling RFPs + regranting | 300-word EOI, 2-week response; supports platforms like Manifund | editorial | |
| key-funders | Good Ventures (primary) | Dustin Moskovitz & Cari Tuna; expanding to multi-donor model | editorial | |
| scale | Dominant | $4B+ total grants; ~$46M AI safety in 2023 | editorial | |
| structure | 13 cause-specific funds | Multi-donor pooled funds since Nov 2025 rebrand | editorial | |
| transparency | High | Public grants database, annual progress reports | editorial |
| Title | Date | EventType | Description | Significance | |
|---|---|---|---|---|---|
| Rebrand from Open Philanthropy to Coefficient Giving | 2025-11-18 | pivot | Multi-donor expansion (over $100M directed from non-Good-Ventures donors in 2024); brand clarity to disambiguate from OpenAI and Open Society Foundations; structural reorganization into 13 distinct funds. | major | |
| $40M Technical AI Safety RFP | 2025 | funding | — | major | |
| ~$50M AI safety committed; 68% to evaluations/benchmarking | 2024 | milestone | — | moderate | |
| ~$46M AI safety spending; largest funder in the field | 2023 | milestone | AI safety becomes Open Philanthropy's largest longtermist cause area. | major | |
| $150M Regranting Challenge launched (not AI-specific) | 2022 | launch | — | moderate | |
| AI safety spending exceeds $20M annually | 2019 | milestone | — | moderate | |
| Spun off from GiveWell as independent LLC | 2017 | pivot | Holden Karnofsky publishes detailed AI concerns; the spinoff enables Open Philanthropy to pursue its own strategic priorities while GiveWell continues focusing on evidence-backed global health interventions. | major | |
| First AI safety grants | 2015 | milestone | Began supporting AI safety work in 2015, when the field had ~10 full-time researchers and institutional support was minimal. Early grants helped establish MIRI, CHAI, and the Future of Humanity Institute. | major | |
| Open Philanthropy formalized as project within GiveWell | 2014 | milestone | The advising relationship formalizes into "Open Philanthropy" as a distinct project, focused on identifying high-impact giving opportunities across a broader range of cause areas than GiveWell's traditional global health focus. | major | |
| GiveWell begins advising Good Ventures | 2011 | founding | GiveWell, founded by Holden Karnofsky and Elie Hassenfeld, begins advising Good Ventures (established by Dustin Moskovitz and Cari Tuna) on how to deploy philanthropic capital effectively. | major |
Divisions
16$120M committed over 3 years. Led by Matt Clancy. Economic growth, scientific progress, US-focused.
40+ grants totaling ~$20M. Led by Santosh Harish. Focus on South Asia and high-pollution areas.
140+ grants totaling ~$260M. Led by Andrew Snyder-Beattie. Work began ~2015, five years before COVID-19.
Led by Melanie Basnak and Sam Donald. Support for CEA, 80,000 Hours, EA Funds, and community infrastructure.
Led by Lewis Bollard. Corporate cage-free campaigns, alt-protein research, advocacy.
30+ grants totaling ~$50M. Led by Benjamin Tereick. Forecasting infrastructure and research.
50+ grants totaling ~$30M. Led by Norma Altshuler. Encouraging generous and cost-effective international aid.
Covers AI safety, biosecurity, and other GCR-related grantmaking. 250+ grants across cause areas.
250+ grants across GCR cause areas and EA community capacity building
$40M+ committed over 3 years. Led by Justin Sandefur. Policy research for economic growth in low/middle-income countries.
360+ grants; largest fund. Primarily GiveWell-recommended charities; $175M committed for 2026 via GiveWell
Covers global health, farm animal welfare, and scientific research. 360+ grants; largest program area.
$100-125M raised; 20+ grants. Multi-donor pooled fund with Gates Foundation, UNICEF, others.
480+ grants totaling ~$500M. Sub-areas: Technical Safety (Favaloro, O'Keeffe-O'Donovan), AI Governance (Muehlhauser), Short Timelines (Zabel). ~$63.6M in 2024 (~60% of all external AI safety funding).
330+ grants + 30+ social investments ($90M+). Led by Jacob Trefethen. Treatments, vaccines, diagnostics.
1 inactive division
Focused on reducing incarceration; wound down in 2022. ~$200M total grants.
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