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We publish blog posts to explain our general philosophy on giving, reflect on our progress thus far, announce our plans for the future, and more.

Blogs

Press Release: Open Philanthropy Becomes Coefficient Giving, Expanding Work With Multiple Donors

Announcements

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November 18, 2025

Change reflects organization’s growing role as advisor to many major philanthropists Coefficient Giving has directed more than $4 billion in giving since 2014 SAN FRANCISCO – Today, philanthropic funder and advisor Open Philanthropy announced it is becoming Coefficient Giving, reflecting its evolution from working primarily with one philanthropic partner to...
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The Story Behind Our New Name

Naina Bajekal

By

Naina Bajekal

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Announcements

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November 18, 2025

A coefficient multiplies the value of whatever it’s paired with, just as we aim to amplify impact through our research, grantmaking, and partnerships. We knew that any name would take some getting used to, but this one captured something essential about our work.
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Strategic Cause Selection

Reflections

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November 18, 2025

Philanthropists tend to choose causes based on personal experience, geographic proximity, or emotional appeal. This approach is understandable — personal connection is what motivates many people to give in the first place. But some causes offer far greater opportunities for impact than others: the same donation might save ten lives in one place but a thousand in another.
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Hits-Based Giving

Reflections

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November 18, 2025

One of our core values is our tolerance for philanthropic risk. We’ve seen that the biggest philanthropic wins often come from ideas that seem unlikely to succeed, so we’re open to funding a lot of work that could fail in order to find a few transformative successes.
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Cost-Effectiveness

Reflections

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November 18, 2025

Measuring cost-effectiveness helps us compare very different opportunities and direct funding to where it can do the most good.
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Worldview Diversification

Reflections

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November 18, 2025

When choosing which causes to support, we face difficult moral and empirical questions without clear "right" answers. To address this uncertainty, we divide resources across several broad approaches to doing good, each grounded in a different worldview.
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Request for Proposals: AI for Forecasting and Sound Reasoning

Announcements

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November 13, 2025

This program funds projects that use AI to improve probabilistic forecasting and support sound decision-making. We aim to support the creation of AI models that enhance forecasting accuracy, tools that help with tasks relevant to clear reasoning, and research to understand when models do and do not support truth-oriented reasoning.
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Guide to Back-of-the-Envelope Calculations for Global Health and Wellbeing

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Peter Hickman

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Blog Posts

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November 12, 2025

Editor’s note: This article was published under our former name, Open Philanthropy.   Open Philanthropy program staff often create back-of-the-envelope calculations (BOTECs) as they decide whether to make a grant. This is especially common for areas in our Global Health and Wellbeing (GHW) portfolio. We introduced BOTECs in a recent post:...
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