1/4 Over the last few years, we’ve grown from working primarily with a single foundation to partnering with more philanthropists who share our commitment to high-impact giving. To better reflect this, Open Philanthropy is becoming Coefficient Giving.

The deadline to apply for our Technical AI Safety grantmaking roles has been extended to December 1 at 11:59 PM PT! Apply here:

4/4 Learn more about our new name here ( https://t.co/aKB9BHzzEK). And if you’re a donor interested in working together: partnerwithus@coefficientgiving.org

3/4 What’s not: our mission, values, work with grantees, and team — everything that’s made our work possible over the past decade. We still aim to help others as much as we can with the resources available to us.

2/4 What’s changing? We have a new name, a new website, and a structure that makes it easier for more donors to support our funds at scale.

Open Philanthropy's Forecasting team is launching an RFP for AI for forecasting and sound reasoning! We will be accepting proposals at least until January 30, 2026. Link to full RFP text below! (🧵)

(8/8) If that sounds like you, please apply by November 24: https://t.co/wdLdsgyX98. Know someone who might be a good fit? Refer them to us, and receive a $5k bonus if your referral results in a hire:

(7/8) Concretely, you might help us: • Periodically update and reopen our recent RFP. • Create new grant opportunities. • Scale the impact of our largest grantees. • Write publicly on the types of research we want to see more of. • Investigate promising proposals we receive.

(6/8) Our grantees include orgs like @redwood_ai and @farairesearch, various academic and independent researchers, and some exciting new orgs. For more information, check out our grants page:

(5/8) We make grants in areas like AI control, interpretability, deep learning theory, and model organisms of misalignment. For more examples, see our recent RFP:

(4/8) We're looking for people with: technical ability to recognize and guide the most promising proposals, deep care for mitigating AI risk, high common sense, and strong communication skills. Informed views on how the technical AI safety landscape should evolve are a plus.

(3/8) Job posting here: https://t.co/wdLdsgyX98, deadline 11/24. This is an opportunity to have an outsized influence on the field of technical AI safety. You'd likely be in charge of allocating tens of millions of dollars of high-impact research funding annually.

(2/8) Our technical AI safety grantmaking grew from $40M last year to a projected ~$130M this year (separate from OP’s AI governance and capacity-building teams); we want to continue this trend but are bottlenecked on capacity.

(1/8) Open Philanthropy’s Technical AI Safety team is recruiting grantmakers to support research aimed at reducing catastrophic risks from advanced AI. We’re hiring at all levels of seniority.

RFK Jr. has proposed directing 20% of the NIH’s budget to replication. That would be orders of magnitude more than we’ve ever allocated to biomedical replication. How much should we actually spend? And how do we ensure the money is well spent? With @IFP, I investigated the ROI

The post: https://t.co/PTpRwj2Xn3 The guide: https://t.co/HXTbGa25CP Sample BOTECs across 4 focus areas:

🧮 We just wrote a post on the back-of-the-envelope calculations we use for global health and wellbeing work, from public health to medical research. ✉️ The bad news: "Back-of-the-envelope calculation" is just an expression, unless you have a HUGE envelope. 📕 The good news:

1 in 3 children globally still has unsafe levels of lead in their blood — putting their health and potential at risk. UNICEF and partners like @Open_Phil are addressing this solvable challenge and building a lead-free future for every child.

Lead poisoning affects 800 million children each year but receives very little global attention and funding — that needs to change. Read key takeaways from experts from @open_phil, @Stanford, @UNICEF, and more on the sidelines of UNGA 80 👇 Sponsored by @open_phil

3/3 Know someone who might be a good fit? Refer them here for a $5k bonus if we hire them: