Luke Muehlhauser @lukeprog
Open Philanthropy Program Director, AI Governance and Policy lukeprog.com USA East Coast Joined March 2009-
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Once again I would like to note that the nonprofit AI safety field is massively outgunned by the AI industry. wsj.com/politics/silic…
Once again I would like to note that the nonprofit AI safety field is massively outgunned by the AI industry. wsj.com/politics/silic…
Congratulations to Giving What We Can on reaching 10,000 pledgers who donate 10% of their income to high-impact charities! x.com/givingwhatweca…
Congratulations to Giving What We Can on reaching 10,000 pledgers who donate 10% of their income to high-impact charities! x.com/givingwhatweca… https://t.co/Wpr9ORcRlw
Exciting news! We saturated my $250,000 match! @patrickc is very generously contributing another $250,000 to extend the donation match! If we saturate Patrick’s match, we’ll have raised over $1 million dollars for @farmkind_giving! Thank you so much to the latest round of…
Exciting news! We saturated my $250,000 match! @patrickc is very generously contributing another $250,000 to extend the donation match! If we saturate Patrick’s match, we’ll have raised over $1 million dollars for @farmkind_giving! Thank you so much to the latest round of…
A quarter of a penny of charity per chicken.
A quarter of a penny of charity per chicken.
Nikolai Kapustin is the glorious musical future that Rhapsody in Blue promised us in 1924: open.spotify.com/playlist/61Ido…
New ~$20M multi-donor fund for AI alignment work! alignmentproject.aisi.gov.uk
Strongly agree with the conclusion of this @mattyglesias post - more people should be funding the YIMBY movement. (And we’re happy to be a resource to any other funders who’re interested!) Still early days but wracking up impressive successes left and right.
Europe will do anything to beat the heat except install air conditioning. bbc.com/news/articles/…
A hidden fire‑safety rule is quietly adding $1+ million to the price of many new apartment buildings. Crazy part? The gear it mandates has been used exactly once in a real US fire. Let’s unpack this 👇
Transformer continues to be the quickest way to keep up with the dozens of AI news stories that come out every week. Highly recommended! transformernews.ai/p/trumps-surpr…
Some people are pretending to doubt this, but e.g. the entire nonprofit AI safety ecosystem runs on much less than $1B/yr, whereas annual expenditures for just three leading AI companies (MSFT, GOOG, META) is >$450B/yr.
Some people are pretending to doubt this, but e.g. the entire nonprofit AI safety ecosystem runs on much less than $1B/yr, whereas annual expenditures for just three leading AI companies (MSFT, GOOG, META) is >$450B/yr.
I hate to break it to you @nvidia, but we actually looked into this a few years ago at @CSETGeorgetown. We combed through 66,000 of the PLA's actual purchase records. It turns out they *overwhelmingly* use your chips... And at the time, you didn't do anything about it. 😬
I hate to break it to you @nvidia, but we actually looked into this a few years ago at @CSETGeorgetown. We combed through 66,000 of the PLA's actual purchase records. It turns out they *overwhelmingly* use your chips... And at the time, you didn't do anything about it. 😬 https://t.co/7leCjGgd9v
1/ AI agents are increasingly being deployed for real-world tasks, but how safe are they in high-stakes settings? 🚨 NEW: OpenAgentSafety - A comprehensive framework for evaluating AI agent safety in realistic scenarios across eight critical risk categories. 🧵
Well, we're back to this point now. nytimes.com/2025/07/17/tec…
Well, we're back to this point now. nytimes.com/2025/07/17/tec…
UK AISI (@AISecurityInst) directly improved the safety/security of OpenAI Agent before release. Nice work, and kudos to @OpenAI for giving special access!

Eliezer Yudkowsky ⏹... @ESYudkowsky
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Robin Hanson @robinhanson
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Stefan Schubert @StefanFSchubert
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Rob Bensinger ⏹️ @robbensinger
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Peter Wildeford🇺�... @peterwildeford
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Nathan 🔎 @NathanpmYoung
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Rob Wiblin @robertwiblin
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Holly ⏸️ Elmore @ilex_ulmus
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Spencer Greenberg �... @SpencrGreenberg
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Luke McNally @pseudomoaner
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Samuel Shadrach @samuel_sha13010
13 Followers 35 Following Superintelligent AI might kill every person on Earth by 2030 (unless people coordinate to pause AI research) This account does reposts. DM to chat longer.
Leo McKee-Reid @LeoMckeeReid
79 Followers 382 Following Building in AI Safety Prev: ML research @Leap_Labs, deception evals @LASRlabs, comp neuroscience @salkinstitute, engineer @RocketLab
Armando di Matteo @A1987dM
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Matthew Kenney @baykenney
3K Followers 3K Following Founder @algoresearch_. Previously: Senior ML Engineer at @Apple, Asst. Research Prof at @DukeU Duke Data Science | @penn_state '15 | @Cornell '11
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4K Followers 1K Following building trustworthy AI @arcprize @abundanceinst • prev @Meta @GoogleAI @OIIOxford • 🪽@a16z
bellamy🫀 @63114my
1 Followers 135 Following
Loquacious Bibliophil... @LocBibliophilia
1K Followers 822 Following In a time of machines, I'm pro-human. Humanity is great and we ought to keep it around. d/acc+ for human relevance
Irvin McCullough @mcculloughirvin
3K Followers 1K Following making foia better & working with whistleblowers
Trooper Sanders @TrooperSanders
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Tzu Kit🔸⏸️ @suntzukit
238 Followers 1K Following ✨ ensuring humanity does AGI risk-management well with thoughtful planning and sound solutions ✨☺️
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103 Followers 457 Following Currently focused in finance, history of rock music, and U.S. politics.
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Gustavs Zilgalvis @GZilgalvis
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bitmap @B1tterman
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Jo Peterson @cleartechtoday
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Connor O’Brien @cojobrien
7K Followers 2K Following Research @InnovateEconomy. Thinking about: progress studies, high-skilled immigration reform, industrial policy, the NY Mets. Definite optimist.
CommonSenseOnMars @CommonSenseMars
959 Followers 3K Following Future Martian ancestor. Tech / AI / content creation.
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Transhumanism, Futuri... @GreatArtDaily
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Christine Peterson @lifeext
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Kia Fathi @KiaFathi
132 Followers 353 Following Engineering @fiftyyears More active: https://t.co/CoLZH9rqL9
Grittokenproject @Grittoken2025
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Stephanie Horace @p4439MfoUcfKb
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Alessandro Schneider @AlessandroSndr
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Saber Darabi @SADarabi
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Eliezer Yudkowsky ⏹... @ESYudkowsky
207K Followers 101 Following The original AI alignment person. Missing punctuation at the end of a sentence means it's humor. If you're not sure, it's also very likely humor.
Robin Hanson @robinhanson
112K Followers 723 Following Let’s skip witty banter & talk deep Qs. Books: https://t.co/hpZgEm55Ma https://t.co/iFs9C3IuOM Chief Scientist @_futarchy Advisor @MetaDAOProject @butterygg
Stefan Schubert @StefanFSchubert
38K Followers 2K Following Effective Altruism and the Human Mind (with @LuciusCaviola) is available for free at: https://t.co/ozvdxlZiro
Kelsey Piper @KelseyTuoc
47K Followers 942 Following We're not doomed, we just have a big to-do list.
Rob Bensinger ⏹️ @robbensinger
12K Followers 386 Following Comms @MIRIBerkeley. RT = increased vague psychological association between myself and the tweet.
Peter Wildeford🇺�... @peterwildeford
21K Followers 318 Following Globally ranked top 20 forecaster 🎯 Working at @IAPSai to shape AI for prosperity and human freedom.
Dustin Moskovitz @moskov
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Qualy the lightbulb @QualyThe
10K Followers 322 Following Official Unofficial EA mascot. I'm here to make friends and maximise utility, and I'm all out of neglected altruistic opportunities
Michael Nielsen @michael_nielsen
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Amanda Askell @AmandaAskell
54K Followers 656 Following Philosopher & ethicist trying to make AI be good @AnthropicAI. Personal account. All opinions come from my training data.
Rob Wiblin @robertwiblin
44K Followers 754 Following Host of the 80,000 Hours Podcast. Exploring the inviolate sphere of ideas one interview at a time: https://t.co/2YMw00bkIQ
David Manheim @davidmanheim
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Spencer Greenberg �... @SpencrGreenberg
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Alexander Berger @albrgr
14K Followers 2K Following Enjoys a good applied micro paper. CEO of @open_phil. Views my own, tweets self-destruct every once in a while.
Frances Lorenz @frances__lorenz
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dylan matthews 🔸 @dylanmatt
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Daniel Eth (yes, Eth ... @daniel_271828
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Owain Evans @OwainEvans_UK
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Luca Righetti @lucafrighetti
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Drew (Species) ⏸️ @PauseusMaximus
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Steven Adler @sjgadler
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Seán Ó hÉigeartaig... @S_OhEigeartaigh
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Adam Gleave @ARGleave
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FTX @FTX_Official
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Epic Posts Daily 𝕏 @WallaceBeaufort
8K Followers 668 Following The most interesting things on the internet. All copyrights belong to their respective owners! DM for credits/removal/submission!
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John Nerst @everytstudies
4K Followers 1K Following big picture-fetishist | aspiring erisologist ("the study of disagreement and intellectual difference") | lover and hater of words/philosophy/art
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Zvi Mowshowitz @TheZvi
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Yoshua Bengio @Yoshua_Bengio
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Naina Bajekal 🔸 @naina_bajekal
9K Followers 3K Following Director of Communications @open_phil | Prev. Executive Editor @TIME | https://t.co/EeNGZPLl5w
Andrew Critch (🤖�... @AndrewCritchPhD
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Ketan Ramakrishnan @ketanr
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Xstream News @XStream1973
67K Followers 296 Following A continuous X stream of news (powered by @Rainmaker1973)
catherine ʕ•ᴥ•... @wilhelmscreamin
1K Followers 684 Following ai grantmaking @open_phil, views of someone i'm r-related to 👥
Garrison Lovely @GarrisonLovely
9K Followers 5K Following Writing a book on AI+economics+geopolitics for Nation Books. Bylines: @NYTimes, @Nature, @BBC, @Business, @Guardian, @TIME, @Verge, + others.
Steve Newman @snewmanpv
3K Followers 74 Following Co-founder of Writely (aka Google Docs) and 7 other startups. Now at the Golden Gate Institute for AI, working to bring AI’s toughest questions into focus.
Saad Siddiqui @Saad97Siddiqui
331 Followers 918 Following Senior Researcher @Safe_AI_Forum, @ais_dialogues | Affiliate @aigioxford Sino-Western AI Safety and Governance Past: @Bainandcompany, @schwarzmanorg
⿻ Andrew Trask @iamtrask
77K Followers 1K Following https://t.co/AFuOyzX1GY @openminedorg, @GoogleDeepMind, @OxfordUni, @UN, @GovAI_, @CFR_org member, made #GrokkingDL, NALU & sense2vec
FAR.AI @farairesearch
13K Followers 21 Following Frontier alignment research to ensure the safe development and deployment of advanced AI systems.
Americans for Respons... @americans4ri
2K Followers 529 Following AI policy advocacy in the public interest. ARI is leading the charge for a policy framework that mitigates risks, promotes innovation, and leaves no one behind.
Xander Davies @alxndrdavies
2K Followers 714 Following safeguards lead @AISecurityInst | PhD student w @yaringal at @OATML_Oxford | prev @Harvard (https://t.co/695XYMKqjI)
Tim Fist @fiiiiiist
3K Followers 754 Following Director of Emerging Technology @IFP. Adjunct Senior Fellow @CNASdc. AI & compute policy, science, innovation.
Richard Y. Chappell�... @RYChappell
2K Followers 234 Following Academic Philosopher. Posts better stuff at https://t.co/jwkU1JxzCj 🔸10% Pledge #54 with @GivingWhatWeCan
Emmett Shear @eshear
118K Followers 958 Following CEO of Softmax: Applied developmental cybernetics research
Chris Webster 🔶 @chris0webster
287 Followers 148 Following I do infosec and IT work for @open_phil. Trying to get better at making cocktails, playing M:TG, and reading books. 🔸10% Pledge #3889 with @GivingWhatWeCan
Ronny Fernandez (12/1... @RatOrthodox
4K Followers 304 Following walled surveilled compound manager. moonlighting as whorelord manager. Sentences starting with a lowercase letter are humor, sarcasm, exaggeration, or similar.
Brad Carson @bradrcarson
5K Followers 2K Following Father of Jack, husband of Julie. Ex Congress, DoD, @BattenUVa, President @utulsa. Prez of @americans4ri. An enthusiast, but w/ a gimlet eye on the log x-axis.