Alexander Berger
@albrgr.bsky.social
CEO of Coefficient Giving
Interesting paper from a grantee on productivity gains from LLM usage arxiv.org/pdf/2512.21316
January 17, 2026 at 9:48 PM
Interesting paper from a grantee on productivity gains from LLM usage arxiv.org/pdf/2512.21316
Cool annual impact report from our grantee @epochai.bsky.social, including many great testimonials.
High-quality unbiased data on compute & model trends is really important!
epoch.ai/blog/epoch-...
High-quality unbiased data on compute & model trends is really important!
epoch.ai/blog/epoch-...
January 17, 2026 at 9:46 PM
Cool annual impact report from our grantee @epochai.bsky.social, including many great testimonials.
High-quality unbiased data on compute & model trends is really important!
epoch.ai/blog/epoch-...
High-quality unbiased data on compute & model trends is really important!
epoch.ai/blog/epoch-...
Really enjoyed this post from Beren Millidge thinking through what alignment looks like in singleton vs. multipolar AGI scenarios www.beren.io/2026-01-07-...
AI Monotheism vs AI Polytheism
Epistemic note: This is the beginning of a planned series of posts trying to think about what a highly multi-polar post-AGI world would look like and to what extent humanity or human values could survive in such a world depending on our degree of alignment success. This is all highly...
www.beren.io
January 14, 2026 at 7:23 PM
Really enjoyed this post from Beren Millidge thinking through what alignment looks like in singleton vs. multipolar AGI scenarios www.beren.io/2026-01-07-...
Reposted by Alexander Berger
Blocking new housing doesn't stop rich people from moving in. Instead, it means unleashing them on the existing housing stock.
In SF, increased demand from the tech boom was not met with new supply, so landlords withdrew their rentals to sell to tech workers.
1/
In SF, increased demand from the tech boom was not met with new supply, so landlords withdrew their rentals to sell to tech workers.
1/
January 12, 2026 at 9:52 PM
Blocking new housing doesn't stop rich people from moving in. Instead, it means unleashing them on the existing housing stock.
In SF, increased demand from the tech boom was not met with new supply, so landlords withdrew their rentals to sell to tech workers.
1/
In SF, increased demand from the tech boom was not met with new supply, so landlords withdrew their rentals to sell to tech workers.
1/
Really cool article about @sholtodavid.bsky.social's successful work finding fraudulent data in cancer research
www.thetimes.com/uk/science/...
www.thetimes.com/uk/science/...
January 13, 2026 at 4:00 PM
Really cool article about @sholtodavid.bsky.social's successful work finding fraudulent data in cancer research
www.thetimes.com/uk/science/...
www.thetimes.com/uk/science/...
A reminder that we're hiring for several really important roles at Coefficient Giving! Learn more here: coefficientgiving.org/about-us/ca...
January 9, 2026 at 10:42 PM
A reminder that we're hiring for several really important roles at Coefficient Giving! Learn more here: coefficientgiving.org/about-us/ca...
"Models keep getting more impressive at the rate the short timelines people predict, but more useful at the rate the long timelines people predict."
This is a great essay:
www.dwarkesh.com/p/thoughts-...
This is a great essay:
www.dwarkesh.com/p/thoughts-...
January 7, 2026 at 9:10 PM
"Models keep getting more impressive at the rate the short timelines people predict, but more useful at the rate the long timelines people predict."
This is a great essay:
www.dwarkesh.com/p/thoughts-...
This is a great essay:
www.dwarkesh.com/p/thoughts-...
Reposted by Alexander Berger
Despite unprecedented cuts to global aid, there were still bright spots for global health in 2025, including progress on reducing lead exposure.
@rachelbonnifield.bsky.social discusses the decline in Bangladeshi children's blood lead levels in @npr.org:
https://go.cgdev.org/3N2J6Cb
@rachelbonnifield.bsky.social discusses the decline in Bangladeshi children's blood lead levels in @npr.org:
https://go.cgdev.org/3N2J6Cb
In a year of steep challenges, there were still shining moments in global health
The Trump administration's deep cuts in U.S. foreign health aid had a devastating impact. Yet there were achievements of note in spite of it all.
go.cgdev.org
January 5, 2026 at 7:13 PM
Despite unprecedented cuts to global aid, there were still bright spots for global health in 2025, including progress on reducing lead exposure.
@rachelbonnifield.bsky.social discusses the decline in Bangladeshi children's blood lead levels in @npr.org:
https://go.cgdev.org/3N2J6Cb
@rachelbonnifield.bsky.social discusses the decline in Bangladeshi children's blood lead levels in @npr.org:
https://go.cgdev.org/3N2J6Cb
Reposted by Alexander Berger
AEJ-Macro: Fed move to stabilize "shortfalls" rather than "deviations" of employment from max raises average inflation and nominal policy rates by 90 basis points, reduces the likelihood of a binding zero lower bound, implies a steeper & nonlinear Phillips curve. www.aeaweb.org/articles?id=...
From Deviations to Shortfalls: The Effects of the FOMC's New Employment Objective
(January 2026) - We analyze the effects of a monetary policy that stabilizes "shortfalls" rather than "deviations" of employment from its maximum level. A shortfalls-stabilization rule leads to expect...
www.aeaweb.org
December 30, 2025 at 7:50 PM
AEJ-Macro: Fed move to stabilize "shortfalls" rather than "deviations" of employment from max raises average inflation and nominal policy rates by 90 basis points, reduces the likelihood of a binding zero lower bound, implies a steeper & nonlinear Phillips curve. www.aeaweb.org/articles?id=...
I wanted to give an end-of-year shout out to @ourworldindata.org, who we recently gave a three-year, $3m general support grant (short 🧵)
December 19, 2025 at 6:15 PM
I wanted to give an end-of-year shout out to @ourworldindata.org, who we recently gave a three-year, $3m general support grant (short 🧵)
Our staff's 2025 recommendations for individual donors, fresh off the press: coefficientgiving.org/research/su...
Suggestions for Individual Donors from Coefficient Giving Staff – 2025 | Coefficient Giving
The 2025 edition of our annual tradition: a list of giving opportunities suggested by Coefficient Giving program staff.
coefficientgiving.org
December 19, 2025 at 5:01 PM
Our staff's 2025 recommendations for individual donors, fresh off the press: coefficientgiving.org/research/su...
Some news: we're committing $175m to @GiveWell in 2026, growing our >$1B committed to date.
Based on GiveWell’s estimates, we think this funding has saved >100,000 lives so far. 🧵
coefficientgiving.org/research/al...
Based on GiveWell’s estimates, we think this funding has saved >100,000 lives so far. 🧵
coefficientgiving.org/research/al...
Allocating $175M to GiveWell’s Recommendations for 2026 | Coefficient Giving
This post lays out why we've chosen to renew our support for GiveWell’s recommendations; we think it's an outstanding resource and we’re proud to support the organizations it has identified.
coefficientgiving.org
December 18, 2025 at 7:57 PM
Some news: we're committing $175m to @GiveWell in 2026, growing our >$1B committed to date.
Based on GiveWell’s estimates, we think this funding has saved >100,000 lives so far. 🧵
coefficientgiving.org/research/al...
Based on GiveWell’s estimates, we think this funding has saved >100,000 lives so far. 🧵
coefficientgiving.org/research/al...
This @ezrakleinbot.bsky.social episode is great! www.nytimes.com/2025/12/16/...
Opinion | The Simplest Way to Save Lives With Your Money
Elie Hassenfeld, the chief executive of the nonprofit GiveWell, makes the case for a more rigorous, transparent and accountable approach to charitable giving.
www.nytimes.com
December 17, 2025 at 2:00 PM
This @ezrakleinbot.bsky.social episode is great! www.nytimes.com/2025/12/16/...
Reposted by Alexander Berger
Today’s episode of The Ezra Klein Show.
Elie Hassenfeld, the chief executive of the nonprofit GiveWell, makes the case for a more rigorous, transparent and accountable approach to charitable giving.
open.spotify.com/episode/1Ff6...
www.nytimes.com/2025/12/16/o...
Elie Hassenfeld, the chief executive of the nonprofit GiveWell, makes the case for a more rigorous, transparent and accountable approach to charitable giving.
open.spotify.com/episode/1Ff6...
www.nytimes.com/2025/12/16/o...
Opinion | What Does It Mean to Give Well?
www.nytimes.com
December 16, 2025 at 1:46 PM
Today’s episode of The Ezra Klein Show.
Elie Hassenfeld, the chief executive of the nonprofit GiveWell, makes the case for a more rigorous, transparent and accountable approach to charitable giving.
open.spotify.com/episode/1Ff6...
www.nytimes.com/2025/12/16/o...
Elie Hassenfeld, the chief executive of the nonprofit GiveWell, makes the case for a more rigorous, transparent and accountable approach to charitable giving.
open.spotify.com/episode/1Ff6...
www.nytimes.com/2025/12/16/o...
TIL: there are now more Christians living in Africa than in Europe.
www.pewresearch.org/short-reads...
www.pewresearch.org/short-reads...
December 15, 2025 at 11:03 PM
TIL: there are now more Christians living in Africa than in Europe.
www.pewresearch.org/short-reads...
www.pewresearch.org/short-reads...
Reposted by Alexander Berger
Every AI-bubble debate is the same 12 facts, studies, and arguments quoted back and forth, over and over.
So Tim Lee at @understandingai.skystack.xyz and I teamed up to publish a 4,000 word deep-dive analysis of all 12.
www.derekthompson.org/p/how-to-sou...
So Tim Lee at @understandingai.skystack.xyz and I teamed up to publish a 4,000 word deep-dive analysis of all 12.
www.derekthompson.org/p/how-to-sou...
How to Sound Like an Expert in Any AI Bubble Debate
There are 12 statistics, factoids, and studies that dominate every discussion about whether artificial intelligence is a bubble. Here's a deep-dive into all 12 arguments
www.derekthompson.org
November 25, 2025 at 3:03 PM
Every AI-bubble debate is the same 12 facts, studies, and arguments quoted back and forth, over and over.
So Tim Lee at @understandingai.skystack.xyz and I teamed up to publish a 4,000 word deep-dive analysis of all 12.
www.derekthompson.org/p/how-to-sou...
So Tim Lee at @understandingai.skystack.xyz and I teamed up to publish a 4,000 word deep-dive analysis of all 12.
www.derekthompson.org/p/how-to-sou...
Today, I have an article in @SSIR.org on lessons from our first decade, including:
(1) The importance of choosing causes
(2) Field-building pays off hugely
(3) Great philanthropy is possible anywhere on the risk spectrum
(4) Balancing maximization and moderation is hard
🧵
ssir.org/articles/en...
(1) The importance of choosing causes
(2) Field-building pays off hugely
(3) Great philanthropy is possible anywhere on the risk spectrum
(4) Balancing maximization and moderation is hard
🧵
ssir.org/articles/en...
November 24, 2025 at 4:49 PM
Today, I have an article in @SSIR.org on lessons from our first decade, including:
(1) The importance of choosing causes
(2) Field-building pays off hugely
(3) Great philanthropy is possible anywhere on the risk spectrum
(4) Balancing maximization and moderation is hard
🧵
ssir.org/articles/en...
(1) The importance of choosing causes
(2) Field-building pays off hugely
(3) Great philanthropy is possible anywhere on the risk spectrum
(4) Balancing maximization and moderation is hard
🧵
ssir.org/articles/en...
Great to see the US renewed funding for the Global Fund! www.devex.com/news/global...
November 21, 2025 at 11:16 PM
Great to see the US renewed funding for the Global Fund! www.devex.com/news/global...
Reposted by Alexander Berger
Investment in tech equip & software rivals the 90s in growth rates but accounted for 2/3 of all growth in H1 vs only ~15% in the late 90s. Other things going on in the 90s--broad based boom in the labor market/GDP, globalization, peace dividend, consumer optimism, labor force growth & immigration
November 19, 2025 at 2:23 PM
Investment in tech equip & software rivals the 90s in growth rates but accounted for 2/3 of all growth in H1 vs only ~15% in the late 90s. Other things going on in the 90s--broad based boom in the labor market/GDP, globalization, peace dividend, consumer optimism, labor force growth & immigration
More on our big news today:
bsky.app/profile/alb...
bsky.app/profile/alb...
November 18, 2025 at 4:17 PM
More on our big news today:
bsky.app/profile/alb...
bsky.app/profile/alb...
Some news: Open Philanthropy is now Coefficient Giving! Our mission is unchanged but the new name reflects our growing work with other donors to multiply the impact of their giving.
🧵 on our work to make philanthropy a more efficient "market" and plans going forward:
🧵 on our work to make philanthropy a more efficient "market" and plans going forward:
November 18, 2025 at 3:07 PM
Some news: Open Philanthropy is now Coefficient Giving! Our mission is unchanged but the new name reflects our growing work with other donors to multiply the impact of their giving.
🧵 on our work to make philanthropy a more efficient "market" and plans going forward:
🧵 on our work to make philanthropy a more efficient "market" and plans going forward:
I really like this R21/RTS,S malaria vaccine tracker from @1daysooner.bsky.social
1dayafrica.org/r21-campaign
1dayafrica.org/r21-campaign
November 11, 2025 at 11:54 PM
I really like this R21/RTS,S malaria vaccine tracker from @1daysooner.bsky.social
1dayafrica.org/r21-campaign
1dayafrica.org/r21-campaign
New @devex.com article, ft. @justsand.bsky.social, on our our $40m fund to accelerate economic growth in low- and middle-income countries, including a great explanation of hits-based vs. GiveWell-style philanthropic giving
www.devex.com/news/as-aid...
www.devex.com/news/as-aid...
October 21, 2025 at 10:48 PM
New @devex.com article, ft. @justsand.bsky.social, on our our $40m fund to accelerate economic growth in low- and middle-income countries, including a great explanation of hits-based vs. GiveWell-style philanthropic giving
www.devex.com/news/as-aid...
www.devex.com/news/as-aid...
Great new article in @devex.com featuring Tom Hird, who works on our Lead Exposure Action Fund. Progress is possible on reducing lead poisoning!
Full article here: www.devex.com/news/sponso...
Full article here: www.devex.com/news/sponso...
October 20, 2025 at 8:01 PM
Great new article in @devex.com featuring Tom Hird, who works on our Lead Exposure Action Fund. Progress is possible on reducing lead poisoning!
Full article here: www.devex.com/news/sponso...
Full article here: www.devex.com/news/sponso...
Good article from Bloomberg on how genetic selection causes lots of suffering for broiler chickens, featuring work from several Open Phil grantees on better broiler welfare standards.
www.bloomberg.com/news/featur...
www.bloomberg.com/news/featur...
October 10, 2025 at 5:11 PM
Good article from Bloomberg on how genetic selection causes lots of suffering for broiler chickens, featuring work from several Open Phil grantees on better broiler welfare standards.
www.bloomberg.com/news/featur...
www.bloomberg.com/news/featur...