http://Terafab.ai
Jack Clark
@jackclarkSF
POLICY@AnthropicAI, ONEAI OECD, co-chair @indexingai, writer @ http://importai.net Past: @openai, @business @theregister. Neural nets, distributed systems, weird futures
Sam Bowman
@sleepinyourhat
RESEARCHERAI alignment + LLMs at Anthropic. On leave from NYU. Views not employers'. No relation to @s8mb. Into @givingwhatwecan.
Alexandr Wang
@alexandr_wang
FOUNDERchief ai officer @meta, founder @scale_ai. rational in the fullness of time
Dwarkesh Patel
@dwarkesh_sp
CREATORHost of @dwarkeshpodcast https://www.youtube.com/DwarkeshPatel https://open.spotify.com/show/4JH4tybY1zX6e5hjCwU6gF https://apple.co/3ujLQkZ
Zoubin Ghahramani
@ZoubinGhahrama1
RESEARCHERVP Research, Google DeepMind, ex-head of Google Brain. Professor at University of Cambridge. Machine Learning Researcher. ex-Chief Scientist & VP of AI, Uber.
Jerry Tworek
@MillionInt
RESEARCHERCEO and co-founder of Core Automation former VP of RL @ OpenAI : reasoning models, o3, o1, GPT4, ChatGPT, Codex, RL for robots cautious AI optimist
Amanda Askell
@AmandaAskell
RESEARCHERPhilosopher & ethicist trying to make AI be good @AnthropicAI. Personal account. All opinions come from my training data.
Joshua Achiam
@jachiam0
RESEARCHERFreedom, flourishing, and abundance. Chief Futurist @openai. Main author of http://spinningup.openai.com
Bob McGrew
@bobmcgrewai
EXECUTIVELearning new things. Former Chief Research Officer at OpenAI, early exec at Palantir, early employee at Paypal.
David Sacks
@DavidSacks
INVESTORTech founder & investor. Personal views only. Official account: @davidsacks47
Catherine Olsson
@catherineols
ENGINEERHanging out with Claude, improving its behavior, and building tools to support that @AnthropicAI 😁 prev: @open_phil @googlebrain @openai (@microcovid)
Ethan Mollick
@emollick
RESEARCHERProfessor @Wharton studying AI, innovation & startups. Democratizing education using tech Book: https://a.co/d/4VguzZz Substack: https://www.oneusefulthing.org/
Sholto Douglas
@_sholtodouglas
RESEARCHERScaling RL @AnthropicAI, ex @DeepMind - working towards intelligence too cheap to meter
Matthew Johnson
@SingularMattrix
RESEARCHERResearcher at Google Brain. I work on JAX (https://github.com/google/jax).
Boaz Barak
@boazbaraktcs
RESEARCHERComputer Scientist. See also http://windowsontheory.org . @harvard @openai opinions my own.
Lulu Cheng Meservey
@lulumeservey
CREATORRostra founder, Shopify board, ex Activision & Substack, writing http://www.getflack.com
Sham Kakade
@ShamKakade6
RESEARCHERHarvard Professor. Full stack ML and AI. Co-director of the Kempner Institute for the Study of Artificial and Natural Intelligence.
Fernando Pereira
@earnmyturns
RESEARCHERGoogle VP & Engineering Fellow; former Penn professor; ML/NLP researcher; fanatic skier; he/him. Also @earnmyturns at http://post.news
Joe Carlsmith
@jkcarlsmith
RESEARCHERPhilosophy, futurism, AI. Working on Claude's values @AnthropicAI. Formerly @coeff_giving. Opinions my own.
Riley Goodside
@goodside
ENGINEERScreenshots from the jagged frontier. Formerly: Google DeepMind, Scale.
Arvind Narayanan
@random_walker
RESEARCHERPrinceton CS prof and Director @PrincetonCITP. Coauthor of "AI Snake Oil" and "AI as Normal Technology". https://www.normaltech.ai/ Views mine.
will depue
@willdepue
RESEARCHERretired ex @openai (sora 1 & 2, posttraining o3/4o, pretraining moonshots)
Kevin Patrick Murphy
@sirbayes
RESEARCHERResearch Scientist at Google DeepMind. Interested in Bayesian Machine Learning.
Ashlee Vance
@ashleevance
CREATORWriting at http://www.corememory.com and host of the Core Memory podcast. 2X NYT best-seller. Filmmaker @HBO (Wild, Wild Space) + @Netflix (Don't Die).
Noah Smith 🐇🇺🇸🇺🇦🇹🇼
@Noahpinion
CREATORWrites about economics, posts about rabbits. For serious opinions/analysis, read my blog: http://noahpinion.blog
Helen Toner
@hlntnr
POLICYAI, national security, China. Part of the founding team at @CSETGeorgetown (opinions my own). Author of Rising Tide on substack: http://helentoner.substack.com
Bill Gurley
@bgurley
INVESTORFounder/President @p3institute Author: Runnin' Down a Dream, pre-order link below! VC @benchmark Trustee @sfiscience
Ajeya Cotra
@ajeya_cotra
RESEARCHERHelping the world prepare for extremely powerful AI. Risk assessment @METR_evals. Writing at Planned Obsolescence (about AI), Good Bones (about whatever).
Beff (e/acc)
@beffjezos
FOUNDERfounder @ e/acc // thermo king @extropic // Kardashev scaling is all you need
Ezra Klein
@ezraklein
CREATORColumnist, @NYTOpinion Author, "Why We're Polarized" Host of "The Ezra Klein Show" podcast
Devon ☀️
@devonzuegel
EXECUTIVEI've gone to look for myself. If I return before I get back, please ask me to wait. Prev @GitHub @NotionHQ @Affirm @StanfordReview. Now building @Esmeralda_Inst
Patrick McKenzie
@patio11
CREATORI work for the Internet and am an advisor to @stripe. These are my personal opinions unless otherwise noted.
Kevin Roose
@kevinroose
CREATORNYT tech columnist, Hard Fork co-host, high-perplexity language model. Writing a book about AGI.
Alexander Wei
@alexwei_
RESEARCHERReasoning @OpenAI. Co-built CICERO @MetaAI | @Berkeley_AI PhD '23 | @Harvard '20
Jon Barron
@jon_barron
RESEARCHERPrincipal research scientist at Google DeepMind. Synthesized views are my own.
Alexander Berger
@albrgr
POLICYEnjoys a good applied micro paper. CEO of @coeff_giving. Views my own, tweets self-destruct every once in a while.
@levelsio
@levelsio
FOUNDER📸http://PhotoAI.com $100K/m 🛰http://RemoteOK.com $43K/m 🎮http://Vibej.am $36K/m 🏡http://InteriorAI.com $34K/m 💾http://Pieter.com $25K/m 🌍http://Nomads.com $11K/m 👙http://levelsio.com + @X $7K/m
⿻ Andrew Trask
@iamtrask
RESEARCHERi teach AI on X building AI with attribution-based control @openminedorg, @GoogleDeepMind, @OxfordUni, @UN, @GovAI_, and @CFR_org
Neel Nanda
@NeelNanda5
RESEARCHERMechanistic Interpretability lead DeepMind. Formerly @AnthropicAI, independent. In this to reduce AI X-risk. Neural networks can be understood, let's go do it!
Max Schwarzer
@max_a_schwarzer
RESEARCHERDoing RL @AnthropicAI. Formerly VP of Research, Head of Post-Training @OpenAI. PhD with Aaron Courville and Marc Bellmare at Mila.
Zvi Mowshowitz
@TheZvi
CREATORBlogger primarily on AI and AI x-risk but also other things at Don't Worry About the Vase (SS/WP/LW), founding Balsa Research to fix policy.
Dhruv Batra
@DhruvBatra_
RESEARCHERCo-founder & Chief Scientist @yutori_ai. Prev: Senior Director leading FAIR Embodied AI @MetaAI and Professor @GeorgiaTech.
Chris Dixon
@cdixon
INVESTORProgramming, philosophy, history, internet, startups, crypto. Managing Partner @a16zcrypto. See disclosures: http://a16z.com/disclosures/
William MacAskill
@willmacaskill
RESEARCHERConsider donating 10% to effective charities: http://www.givingwhatwecan.org/pledge Or a career for impact: http://80000hours.org My research: http://forethought.org
Chris Anderson
@chr1sa
CREATOR*Occupy the skies* Past in drones, airtaxis and media. Present in AI+Science. Also nerdy autonomous car racing hobby at @DIYRobocars Photo by @chrismichel
Max Roser
@MaxCRoser
RESEARCHERData to understand global problems and research to make progress against them. Founder of @OurWorldInData / Professor at @UniofOxford's @BlavatnikSchool
Evan Hubinger
@EvanHub
RESEARCHERAlignment Stress-Testing lead @AnthropicAI. Opinions my own. Previously: MIRI, OpenAI, Google, Yelp, Ripple. (he/him/his)
Sherjil Ozair
@sherjilozair
RESEARCHERco-founder @ project prometheus | founder @GeneralAgentsCo | previously autopilot @tesla, deep learning @googledeepmind, phd http://mila.quebec, cs @iitdelhi
Patrick Hsu
@pdhsu
RESEARCHER@ArcInstitute co-founder, @BerkeleyBioE professor, @ThriveCapital investor | biology and ML research | 🇨🇦 prev @harvard @broadinstitute, Fast Grants
Stephanie Chan
@scychan_brains
RESEARCHERStaff Research Scientist at DeepMind. Artificial & biological brains 🤖 🧠 Societal impacts of AI + Science of AI. Views are my own.
Rob Wiblin
@robertwiblin
CREATORHost of the 80,000 Hours Podcast. Exploring the inviolate sphere of ideas one interview at a time: http://80000hours.org/podcast/
Liv Boeree
@Liv_Boeree
CREATORThat poker girl. Host of the Win-Win podcast. Slaying Moloch & chasing horizons 🚀♣️🌳🦾 Watch my latest thing here 👇
Jason Crawford
@jasoncrawford
CREATORI write and speak about the history & philosophy of progress. Founder, @rootsofprogress. Host of the Progress Conference. Author, The Techno-Humanist Manifesto.
Alex Tamkin
@AlexTamkin
RESEARCHERmachine learning, science & society @AnthropicAI | recently: Clio, Anthropic Economic Index, Claude Artifacts | prev: phd @StanfordAILab, @stanfordnlp
Evan Morikawa
@E0M
ENGINEER🤖 @Generalistai. Prev: led eng at @openai. Launched & scaled ChatGPT, GPT-4, DALL·E, APIs. Dir Eng @Nylas, Co-Founder @Proximate, @OlinCollege alum.
Yo Shavit
@yonashav
POLICYpolicy for v smart things @openai. Past: CS PhD @HarvardSEAS/@SchmidtFutures/@MIT_CSAIL. Tweets my own; on my head be it.
Alexey Guzey
@alexeyguzey
RESEARCHERhttp://guzey.com, http://newscience.org, @openai; in pursuit of a just, beautiful future.
Irina Rish
@irinarish
RESEARCHERprof UdeM/Mila; Canada Excellence Research Chair; AAI Lab head http://www.irina-lab.ai; CSO @ http://42.com; advisor @ http://Nolano.ai
Tony Zhao
@tonyzzhao
RESEARCHERCo-founder and CEO @sundayrobotics. Stanford PhD dropout, ex Deepmind, Tesla, GoogleX
Andy Matuschak
@andy_matuschak
RESEARCHERMore wonder, more insight, more expression, more joy! R&D on tools for thought, with a focus on memory, reading, and attention. Currently working on @pico.
Russell Kaplan
@russelljkaplan
FOUNDERPresident @cognition. Past: director of engineering @Scale_AI, startup founder, ML scientist @Tesla Autopilot, researcher @StanfordSVL.
Ian Hogarth
@soundboy
INVESTORinvestor at @pluralplatform, chair UK AI Security Institute, co-founder @songkick
Derek Thompson
@DKThomp
CREATORSign up for my new newsletter! (Link below) Also: Co-author of Abundance, host of Plain English, and contributing writer at The Atlantic.
Rosie Campbell
@RosieCampbell
POLICYForever expanding my nerd/bimbo Pareto frontier. AI welfare 🤝 AI safety. Managing Director @eleosai, Ex-OpenAI, 2024 @rootsofprogress fellow
Gretchen Krueger
@GretchenMarina
POLICYOver at Bluesky. Researcher affiliated w @BKCHarvard, Volunteer @evitable. Previously @openai @ainowinstitute. Views mine. #justdontbuildagi #talktomenotchatgpt
Benjamin Todd
@ben_j_todd
FOUNDERFounder @80000Hours Writing about AI, careers and doing good 🦑 New book with Penguin: http://80000hours.org/book
Daniel Eth (yes, Eth is my actual last name)
@daniel_271828
RESEARCHERResearching effects of automated AI R&D | pro-America, pro-tech, & pro-AI safety
Rob Miles
@robertskmiles
CREATORExplaining AI Alignment to anyone who'll stand still for long enough, on YouTube and Discord. Music, movies, microcode, and high-speed pizza delivery
Alex Tabarrok
@ATabarrok
CREATORProf of economics at George Mason, co-founder of the online education platform http://MRU.org. Advisor to firms, incl MultiversX, TEAL, Bluechip, 0L Network +
Brendan O'Donoghue
@bodonoghue85
RESEARCHERDirector of Research at @GoogleDeepMind, working on generative models, deep learning, RL. PhD from @stanford. Gemini Diffusion lead.
Cate Hall
@catehall
CREATORpreorder You Can Just Do Things, a guide to personal agency, now: https://shorturl.at/kOCpz anon feedback: http://shorturl.at/vxF24 | http://catehall.com
Zachary Nado
@zacharynado
RESEARCHERResearch eng @GoogleDeepMind on Gemini pretrain. Personal acct. Past: swe intern @SpaceX, ugrad researcher in @tserre lab @BrownUniversity. All opinions my own.
Tamara Winter
@tamarawinter
EXECUTIVEPublisher @stripepress | Board @ifp + @joinFAI | Creator of TACIT, a mini-documentary series following master craftspeople at work
Nadia Asparouhova
@nayafia
CREATORcloudcat // new book about ideas that don’t spread: https://darkforest.metalabel.com/antimemetics
Dan Wang
@danwwang
CREATORThe secure transport of light; Breakneck; industrial research at the Hoover History Lab
Steven Adler
@sjgadler
RESEARCHERAI safety researcher (ex-OpenAI: danger evals, AGI readiness, etc), writing at https://clear-eyed.ai
Matt Clifford
@matthewclifford
FOUNDERCo-founder @join_ef; Chair @ARIA_Research; Make Britain Rich Again.
Neal Khosla
@nealkhosla
FOUNDERI judge myself on what my 8 and 80 year old selves would think. CEO of @CuraiHQ - making healthcare available and affordable to everyone
Philip E. Tetlock
@PTetlock
RESEARCHERPenn-Integrates-Knowledge (PIK) Professor, Wharton & School of Arts & Sciences. Likes = interesting; Retweets = very interesting; Interesting ≠ endorsement
fraser
@Fraser
INVESTORvc at @sparkcapital past: head of product at @openai; co-founder/ceo of an AI startup that was acquired by Airbnb
Tristan Harris
@tristanharris
POLICY• Co-founder @HumaneTech_ • Former Google Design Ethicist • Featured in Netflix's @SocialDilemma_ • #TIME100 for AI • Host #YourUndividedAttention podcast
Michael Dell 🇺🇸
@MichaelDell
FOUNDERHusband, Father, Grandfather, Brother, Founder, Chairman and CEO Dell Technologies Grateful 🇺🇸 #PlayNiceButWin http://linktr.ee/michaeldell
Marius Hobbhahn
@MariusHobbhahn
FOUNDERCEO at Apollo Research @apolloaievals prev. ML PhD with Philipp Hennig & AI forecasting @EpochAIResearch
Eli Lifland
@eli_lifland
RESEARCHERAI forecasting and governance @AI_Futures_. Co-author of AI 2027 and the AI Futures Model. Also @aidigest_, @SamotsvetyF. Prev @oughtinc
jasmine sun
@jasminewsun
CREATORanthropologist of disruption ✰ contributor @theatlantic ✰ newsletter http://jasmi.news
Peter Wildeford🇺🇸🚀
@peterwildeford
POLICYHead of Policy @AIPolicyNetwork. Ohioan. World champion forecaster. Former data scientist. Protecting liberty and prosperity in the age of superintelligence.
Samuel Hammond 🦉
@hamandcheese
POLICYChief economist + AI Policy Director, @joinFAI. Nonresident fellow @NiskanenCenter. Pluralist. 'The world is second best, at best.' | samuel@thefai.org
Toby Shevlane
@tshevl
RESEARCHER@_Mantic_AI cofounder & CEO, on a mission to solve forecasting. Prev: research scientist @GoogleDeepMind, PhD at @UniofOxford.
Andrew Critch (🤖🩺🚀)
@AndrewCritchPhD
RESEARCHERCEO @ http://theMultiplicity.ai/. AI Researcher @ Berkeley. Views my own. I also post my favorite healthy+tasty foods for free.
SBF
@SBF_FTX
FOUNDERSBF's words. Posted through a proxy. (We can use BOP-approved phone calls / emails to tell others what to post on our socials.) Follows ≠ endorsements.
Alexandria Ocasio-Cortez
@AOC
POLITICIANUS Congresswoman, NY-14. In a modern, moral, and wealthy society, no American should be too poor to live. People-Funded, takes no lobbyist💰. Personal account.
Matthew Yglesias
@mattyglesias
CREATORSlow Boring, cohosting http://politix.fm and The Argument pod. NYT contributing opinion writer.
Crémieux
@cremieuxrecueil
CREATORI write about genetics, 'metrics, and demographics. Read my long-form writing at http://www.cremieux.xyz.
Richard Hanania
@RichardHanania
CREATORI write a newsletter you should subscribe to. http://www.richardhanania.com. Monthly columns @unherd @BostonGlobe
Senator Scott Wiener
@Scott_Wiener
POLITICIAN6’7” CA State Senator 🏳️🌈 ✡️ Policy nerd & chronic legislative overachiever 🤓 Running for Congress to protect our democracy 💙 Vote June 2, 2026 🗳️
Julia Galef
@juliagalef
CREATORAuthor of THE SCOUT MINDSET and host of the Rationally Speaking podcast
Megan McArdle
@asymmetricinfo
CREATORColumnist at the Washington Post. Opinions my own. Email me: Megan.McArdle -at- http://washpost.com Buy my book, The Up Side of Down http://amzn.to/1a3i2tK
Jay Hack
@mathemagic1an
ENGINEERHead of AI @clickup. Tweets about AI, computing and knowledge work. Previously founder @codegen / ML @palantir / CS @stanford. Not a pseudonym.
Dr. Alex Wissner-Gross
@alexwg
CREATORThe Innermost Loop, also on Substack (http://alexwg.org/su), LinkedIn (http://alexwg.org/li), Spotify (http://alexwg.org/sp), Threads (http://alexwg.org/th), and YouTube (http://alexwg.org/yt).
Byrne Hobart
@ByrneHobart
CREATORThe John Henry of excessive use of the em-dash. Tweets are map, not territory. Co-author: Boom (Stripe Press): https://a.co/d/f7m2OG8 https://anomalyfund.vc/
Stefan Schubert
@StefanFSchubert
RESEARCHERI run The Update newsletter. Book: http://academic.oup.com/book/56384
Flo Crivello
@Altimor
FOUNDERFounder @getlindy. "Striving to remember the obvious over grasping the esoteric."
andrew gao
@itsandrewgao
ENGINEER@cognition @stanford; prev @sequoia @LangChain @pika_labs; Z Fellow 🇺🇸; views my own
Dan Siroker
@dsiroker
FOUNDERFounded and sold @Optimizely and @LimitlessAI. Created products considered impossible and made them inevitable.
Saloni
@salonium
CREATORCo-founder & editor @WorksInProgMag. Writer, Scientific Discovery. Podcaster, Hard Drugs. Advisor, @coeff_giving. // Prev @OurWorldInData. 🏳️🌈
Celine Halioua
@celinehalioua
FOUNDERFounder + CEO @loyalfordogs 🐶 Working on aging drugs! Longevity Fund, @UniofOxford health econ, @UTAustin neuroscience. Write to learn things.
Dr Anton Howes
@antonhowes
CREATORInvention historian. I write *Age of Invention*, an email newsletter on the history of invention and economic history.
Brendan McCord 🏛️ x 🤖
@Brendan_McCord
POLICYThe academy for philosopher-builders (https://www.cosmos-institute.org). A law unto myself, just like you.
Alex Bores
@AlexBores
POLITICIANNY Assemblymember, computer engineer, dad, husband. Running for Congress in NY-12 to rebuild democracy and deliver results. Big AI's #1 target.
David Manheim
@davidmanheim
RESEARCHERLecturer @TechnionLive, founder @alter_org_il, emeritus @superforecaster, PhD @PardeeRAND Optimistic on AI, pessimistic on humanity managing the risks well.
Saffron Huang
@saffronhuang
RESEARCHERhow shall we live together? societal impacts researcher @AnthropicAI • ex @GoogleDeepMind @AISecurityInst⋅ @collect_intel co-founder • views mine
Matthew Barnett
@MatthewJBar
RESEARCHERCo-founder of @MechanizeWork Married to @natalia__coelho email: matthew at mechanize dot work
Matjaž Leonardis
@MatjazLeonardis
RESEARCHERInterested in learning and creativity. In both humans and machines. (Tweets about education, relationships, institutions, math and computation).
Heidi L. Williams
@heidilwilliams_
RESEARCHERprofessor @dartmouth + science policy @ifp // leveraging research to promote science and progress
Seán Ó hÉigeartaigh
@S_OhEigeartaigh
RESEARCHERDirector of http://ai-far.org at Uni of Cambridge | Researching Big Risks, and impacts of AI & emerging tech. Opinions own
Michael Lai
@Mtclai
POLITICIANAI for state + local government @AnthropicAI | SF elected | community builder
Cathy Wu (Hiring PhD/postdocs)
@wucathy
RESEARCHERFaculty at @MIT. Learning for control and optimization. Reinforcement Learning. Multi-agent systems. Autonomy. Mobility.
