Open Philanthropy Is Now Coefficient Giving

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 November 18, 2025 
 Open Philanthropy Is Now Coefficient Giving

 
 
 
 
 
 
 By
 Alexander Berger 
 

 
 
 
 
 
 
 

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 Today, Open Philanthropy is becoming Coefficient Giving. Our mission remains the same, but our new name marks our next chapter as we double down on our longstanding goal of helping more funders increase their impact. We believe philanthropy can be a far more vital force for progress than it is today; too often, great opportunities to help others go unfunded. As Coefficient Giving, our aim is to make it as easy as possible for donors to find and fund them. (For more on how we chose our new name, what’s changing, and what’s staying the same in this next chapter, see here .)

 
 The world has seen enormous improvement in living conditions over the last two centuries, but continues to face devastating problems philanthropy is well-placed to address. Nearly half of children in poor countries have elevated blood lead levels even though there are proven methods to dramatically reduce lead exposure . Billions of animals live in horrendous conditions on factory farms, though corporate campaigns can meaningfully reduce their suffering. Strict zoning and other barriers slow growth and progress, but YIMBY and the broader abundance movement are beginning to turn the tide . Advances in synthetic biology will increase the risk of novel bioweapons , but ambitious biosecurity efforts to improve detection and response are there for the taking. And while advances in AI hold enormous promise, they could also pose unprecedented risks, leaving a narrow window to implement technical and policy safeguards.

 
 Over the last decade, we’ve developed a model for finding and funding the most cost-effective opportunities to solve these problems. We’re proud of what we’ve achieved:

 
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 Our grants to scalable, evidence-backed global health interventions have saved over 100,000 lives, and will save tens of thousands more in the years to come. [1] 

 We supported the late stage clinical trials for the R21 malaria vaccine, now being scaled to protect millions of kids globally . [2] 

 We were the earliest major funder of the YIMBY movement to build more housing. Our grantees have led the charge on major wins like City of Yes in New York, and SB 79 in California, which will enable hundreds of thousands of new housing units.

 Beginning in 2015, seven years before ChatGPT, we jumpstarted the field of AI safety and security , supporting researchers and organizations that have gone on to do field-defining work in alignment, control, and governance.

 Our work so far has improved the lives of over 3 billion farm animals, largely by driving commitments from corporations to improve the conditions of animals in their supply chains. [3] 

 

 
 These achievements are the result of our founding partnershi

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