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Zach Stein-Perlman

Karma: 12,785

Prioritization research for longtermist philanthropy. Previously ailabwatch.org.

Cur­rent views on large-scale longter­mist philanthropy

Zach Stein-Perlman6 Jul 2026 18:00 UTC
36 points
13 comments3 min readLW link

SFF is very suboptimal

Zach Stein-Perlman6 Jul 2026 18:00 UTC
117 points
10 comments5 min readLW link

Con­sid­er­a­tions against s-pro­cess philanthropy

Zach Stein-Perlman2 Jul 2026 14:30 UTC
20 points
5 comments3 min readLW link

Uni­verses can spe­cial­ize: Each uni­verse should pro­duce the goods it’s most com­par­a­tively ad­van­taged at, rel­a­tive to the mul­ti­ver­sal market

Zach Stein-Perlman26 Apr 2026 16:30 UTC
19 points
19 comments2 min readLW link

Con­sid­er­a­tions for grow­ing the pie

Zach Stein-Perlman4 Apr 2026 15:30 UTC
37 points
3 comments3 min readLW link

Nick Bostrom: How big is the cos­mic en­dow­ment?

Zach Stein-Perlman28 Mar 2026 15:00 UTC
71 points
18 comments3 min readLW link
(amazon.com)

Stop ask­ing “how good is this” to de­cide be­tween dona­tion op­por­tu­ni­ties I recommend

Zach Stein-Perlman27 Mar 2026 15:00 UTC
35 points
6 comments1 min readLW link

You can just mul­ti­ply point es­ti­mates (if you only care about EV)

Zach Stein-Perlman26 Mar 2026 15:00 UTC
29 points
9 comments2 min readLW link

How to do cost-effec­tive­ness anal­y­sis for elections

Zach Stein-Perlman25 Mar 2026 15:00 UTC
28 points
5 comments3 min readLW link

My cost-effec­tive­ness unit

Zach Stein-Perlman24 Mar 2026 15:30 UTC
65 points
5 comments4 min readLW link

Some things I no­ticed while LARPing as a grantmaker

Zach Stein-Perlman23 Mar 2026 15:00 UTC
163 points
11 comments7 min readLW link

AI com­pa­nies’ policy ad­vo­cacy (Sep 2025)

Zach Stein-Perlman29 Sep 2025 15:00 UTC
44 points
0 comments3 min readLW link

xAI’s new safety frame­work is dreadful

Zach Stein-Perlman2 Sep 2025 15:00 UTC
108 points
6 comments3 min readLW link

AI com­pa­nies have started say­ing safe­guards are load-bearing

Zach Stein-Perlman27 Aug 2025 13:00 UTC
53 points
2 comments5 min readLW link

ChatGPT Agent: evals and safeguards

Zach Stein-Perlman25 Jul 2025 16:30 UTC
15 points
0 comments3 min readLW link

Epoch: What is Epoch?

Zach Stein-Perlman27 Jun 2025 16:45 UTC
37 points
1 comment8 min readLW link
(epoch.ai)

AI com­pa­nies aren’t plan­ning to se­cure crit­i­cal model weights

Zach Stein-Perlman23 Jun 2025 16:00 UTC
15 points
0 comments1 min readLW link

AI com­pa­nies’ eval re­ports mostly don’t sup­port their claims

Zach Stein-Perlman9 Jun 2025 13:00 UTC
212 points
13 comments4 min readLW link

New web­site an­a­lyz­ing AI com­pa­nies’ model evals

Zach Stein-Perlman26 May 2025 16:00 UTC
58 points
0 comments4 min readLW link

New score­card eval­u­at­ing AI com­pa­nies on safety

Zach Stein-Perlman26 May 2025 16:00 UTC
72 points
8 comments1 min readLW link