@AnthropicAI, ONEAI OECD, co-chair @indexingai, writer @ http://importai.net Past: @openai, @business @theregister. Neural nets, distributed systems, weird futures
John Schulman
@johnschulman2
RESEARCHERRecently started @thinkymachines. Interested in reinforcement learning, alignment, birds, jazz music
Noam Brown
@polynoamial
RESEARCHERResearching reasoning @OpenAI | Co-created Libratus/Pluribus superhuman poker AIs, CICERO Diplomacy AI, and OpenAI o3 / o1 / 🍓 reasoning models
Sam Bowman
@sleepinyourhat
RESEARCHERAI alignment + LLMs at Anthropic. On leave from NYU. Views not employers'. No relation to @s8mb. Into @givingwhatwecan.
Barret Zoph
@barret_zoph
RESEARCHER@openai Past: - CTO & Co-Founder Thinking Machines Lab (@thinkymachines) - VP Research (Post-Training) @openai - Research Scientist at Google Brain
Joshua Achiam
@jachiam0
RESEARCHERFreedom, flourishing, and abundance. Chief Futurist @openai. Main author of http://spinningup.openai.com
David Duvenaud
@DavidDuvenaud
RESEARCHERMachine learning prof @UofT. Former team lead at Anthropic. Working on generative models, inference, & latent structure.
Bob McGrew
@bobmcgrewai
EXECUTIVELearning new things. Former Chief Research Officer at OpenAI, early exec at Palantir, early employee at Paypal.
Catherine Olsson
@catherineols
ENGINEERHanging out with Claude, improving its behavior, and building tools to support that @AnthropicAI 😁 prev: @open_phil @googlebrain @openai (@microcovid)
Boaz Barak
@boazbaraktcs
RESEARCHERComputer Scientist. See also http://windowsontheory.org . @harvard @openai opinions my own.
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.
Erik Brynjolfsson
@erikbryn
RESEARCHERDirector @DigEconLab Co-founder, @Workhelix @StanfordHAI @SIEPR @Stanford https://www.amazon.com/Second-Machine-Age-Prosperity-Technologies/dp/0393350649
Leo Gao
@nabla_theta
RESEARCHERworking on AGI alignment. prev: GPT-Neo, the Pile, LM evals, RL overoptimization, scaling SAEs to GPT-4, interp via circuit sparsity. EleutherAI cofounder.
will depue
@willdepue
RESEARCHERretired ex @openai (sora 1 & 2, posttraining o3/4o, pretraining moonshots)
Buck Shlegeris
@bshlgrs
RESEARCHERCEO@Redwood Research (@redwood_ai), working on technical research to reduce catastrophic risk from AI misalignment. bshlegeris@gmail.com
MMitchell
@mmitchell_ai
RESEARCHERInterdisciplinary researcher focused on shaping AI towards long-term positive goals. ML & Ethics. Similar content in the Skies (this bird has flown).
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
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).
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
⿻ Andrew Trask
@iamtrask
RESEARCHERi teach AI on X building AI with attribution-based control @openminedorg, @GoogleDeepMind, @OxfordUni, @UN, @GovAI_, and @CFR_org
Alex Nichol
@unixpickle
RESEARCHERCode, AI, and 3D printing. Opinions are mostly my own, sometimes a computer's. Husband of @thesamnichol. Co-creator of DALL-E 2. Researcher @openai.
Dylan HadfieldMenell
@dhadfieldmenell
RESEARCHERAssociate Prof @MITEECS working on value (mis)alignment in AI systems; Safety & Alignment Advisor at http://Character.AI; @dhadfieldmenell@bsky.social; he/him
Stella Biderman @ ICLR
@BlancheMinerva
RESEARCHEREnsuring that tech companies don't have a monopoly on being able to do research on cutting edge AI @AiEleuther. She/her
Rui Shu
@_smileyball
RESEARCHERI draw smileyball http://instagram.com/smiley._.ball Writing organic artisanal handcrafted code @OpenAI Previously doing the same @Stanford
Evan Hubinger
@EvanHub
RESEARCHERAlignment Stress-Testing lead @AnthropicAI. Opinions my own. Previously: MIRI, OpenAI, Google, Yelp, Ripple. (he/him/his)
rishi
@RishiBommasani
RESEARCHERSocietal/economic impacts of AI; AI policy & governance @StanfordHAI Stanford CS PhD w/ @percyliang @jurafsky Cornell CS undergrad w/ @clairecardie
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/
Toby Ord
@tobyordoxford
RESEARCHERSenior Researcher at Oxford University. Author — The Precipice: Existential Risk and the Future of Humanity.
Adam.GPT
@TheRealAdamG
EXECUTIVEForward Deployed GTM at @OpenAI. Senior token slinger. A fan of NY sports, memes, tech & nice people. NJ. My opinions are my own.
Jimmy Apples 🍎/acc
@apples_jimmy
CREATORWagmi. 2025. As featured in Bloomberg. As quoted by Nobel Prize winner Demis Hassabis. As mentioned on the Lex Fridman Podcast💺
Ariel Herbert-Voss
@adversariel
RESEARCHERFounder @RunSybil. likes: offsec, LLMs, and dumb memes. prev: research scientist @OpenAI / CS PhD @Harvard / @defcon AI Village
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.
Shuchao Bi
@shuchaobi
RESEARCHERResearch at Meta Superintelligence Labs, RL/post-training/agents; Previously Research at OpenAI on multimodal and RL; Opinions are my own.
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.
Kenneth Stanley
@kenneth0stanley
RESEARCHERSVP of Open-Endedness @LilaSciences. Prev: Maven CEO, Lead@OpenAI, Uber AI, prof@UCF. NEAT,HyperNEAT,novelty search, POET. Book:Why Greatness Cannot Be Planned
Yo Shavit
@yonashav
POLICYpolicy for v smart things @openai. Past: CS PhD @HarvardSEAS/@SchmidtFutures/@MIT_CSAIL. Tweets my own; on my head be it.
Allan Dafoe
@AllanDafoe
POLICYAGI governance: navigating the transition to beneficial AGI (Google DeepMind)
Jong Wook Kim 💟
@_jongwook_kim
RESEARCHERMember of Technical Staff @OpenAI; previously at @nyuMARL, @SpotifyResearch, @pandoramusic, @kakaocorpglobal, and @NCSOFT
Kory Mathewson
@korymath
RESEARCHER@GoogleDeepMind generative AI models + agents | get great tech into the hands of great creative people
Brian Christian
@brianchristian
RESEARCHERResearcher at the University of Oxford & UC Berkeley. Author of The Alignment Problem, Algorithms to Live By (w. Tom Griffiths), and The Most Human Human.
Angela Jiang
@jiangelaa
POLICYAI-maxxing @worktrace_ai 🩷 | Prev. Public Policy & Product @OpenAI, CS PhD @CarnegieMellon
Ian Hogarth
@soundboy
INVESTORinvestor at @pluralplatform, chair UK AI Security Institute, co-founder @songkick
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
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
Cas (Stephen Casper)
@StephenLCasper
RESEARCHERAI safeguards & gov. research. PhD student @MIT_CSAIL (mnr. Public Policy), and Fellow at @BKCHarvard. Fmr. @AISecurityInst. https://stephencasper.com/
Irene Solaiman
@IreneSolaiman
POLICYai stuff @huggingface 🤗 founded @evaluatingevals views=mine former: @OpenAI @Harvard aspiring ukulele-singer
Thore Graepel
@ThoreG
RESEARCHERPost-AGI research @Deepmind. Prev: AI & ML @Altos_Labs. @DeepMind & @MSFTResearch. #AlphaGo & #TrueSkill, family, music, meditation, Patterns of Thought
fraser
@Fraser
INVESTORvc at @sparkcapital past: head of product at @openai; co-founder/ceo of an AI startup that was acquired by Airbnb
Georges Harik
@gharik
ENGINEERhumans& co-founder, 7th employee google, co-created adwords online, co-created adsense targeting, worked on ai, gmail, calendar, bought android.
Tristan Harris
@tristanharris
POLICY• Co-founder @HumaneTech_ • Former Google Design Ethicist • Featured in Netflix's @SocialDilemma_ • #TIME100 for AI • Host #YourUndividedAttention podcast
Marius Hobbhahn
@MariusHobbhahn
FOUNDERCEO at Apollo Research @apolloaievals prev. ML PhD with Philipp Hennig & AI forecasting @EpochAIResearch
Nathan Labenz
@labenz
CREATORAI Scout, building text-2-video @Waymark, host of The Cognitive Revolution podcast
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.
Stephanie Zhan
@stephzhan
INVESTORGP @Sequoia, investing in AI, from company formation. 1st partner to @linear @mach_industries @middeskhq @reflection_ai @ricursiveai @skildai @tavus
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.
Brydon Eastman
@brhydon
RESEARCHER🇨🇦 Mathematician (heavy on the ish) @thinkymachines Prev. MTS @OpenAI; PhD @WaterlooMath Certified wife guy, featured twice in Lego Magazine © ☕//🤔➡️💻
nxthompson
@nxthompson
EXECUTIVECEO @theatlantic. Going out of business soon, since 1857. Author of “The Running Ground" and host of "The Most Interesting Thing in AI."
Chubby♨️
@kimmonismus
CREATORDream realized! Turned my love for AI into a career - sharing daily. Get my newsletter (225k+ subs): 🔗 https://linktr.ee/kimmonismus //📧 kim@getsuperintel.com
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 🗳️
Kylie Robison
@kyliebytes
CREATORtake it easy dude, but take it • writing @corememory • robison (rah-beh-son) not robinson • signal @ kylie.111
Stefan Schubert
@StefanFSchubert
RESEARCHERI run The Update newsletter. Book: http://academic.oup.com/book/56384
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
Joel Lehman
@joelbot3000
RESEARCHERML researcher, co-author Why Greatness Cannot Be Planned. Creative+safe AI, philosophy. SiR @second_natureai; prev OpenAI / Uber AI / Geometric Intelligence
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
Rylan Schaeffer
@RylanSchaeffer
RESEARCHERAI RS @ Meta TBD. On-Leave from Stanford w/ @sanmikoyejo. Prev @ Gemini, Meta, MIT, Harvard, Uber, UCL, UC Davis
Sarah Shoker
@SarahShoker
RESEARCHERSenior Research Scholar in AI at the Berkeley Risk and Security Lab at UCB. Formerly the Lead of the Geopolitics Team at OpenAI.
Jason Phang
@zhansheng
RESEARCHERFoundations at @OpenAI. PhD @NYUDataScience, @AiEleuther, 🇸🇬. Prev: @Google, @Microsoft
reah miyara
@reah_ai
ENGINEERbuilding rl systems & model evals ex @openai, @googledeepmind, @ibmwatsonx, @nasajpl
Aliisa
@aliisarosenthal
EXECUTIVEformer head of sales @openai, current investor @acrewcapital. fine-tuning two small models with @hodgessam.
Ashvin Nair
@ashvinair
RESEARCHERRL foundations @cursor_ai. Prev: o1, o3, Code Interpreter @openai, 9 years learning to poke by poking at UC Berkeley
