Sebastien Bubeck
@SebastienBubeck
RESEARCHERI work on AI at OpenAI. Former VP AI and Distinguished Scientist at Microsoft.
Sander Dieleman
@sedielem
RESEARCHERResearch Scientist at Google DeepMind (WaveNet, Imagen, Veo). I tweet about deep learning (research + software), music, generative models (personal account).
David Duvenaud
@DavidDuvenaud
AI SAFETYMachine learning prof @UofT. Former team lead at Anthropic. Working on generative models, inference, & latent structure.
Joshua Achiam
@jachiam0
AI SAFETYFreedom, flourishing, and abundance. Chief Futurist @openai. Main author of https://t.co/cKuSh21yaz
Logan Kilpatrick
@OfficialLoganK
ENGINEERMember of technical staff, working on @GoogleAIStudio, the Gemini API, & Kaggle. My views!
Zico Kolter
@zicokolter
ACADEMICProfessor and Head of Machine Learning Department at @CarnegieMellon. Board member @OpenAI and @Qualcomm. Chief Scientist @GraySwanAI.
Lucas Beyer (bl16)
@giffmana
RESEARCHERResearcher (now: Meta. ex: OpenAI, DeepMind, Brain, RWTH Aachen), Gamer, Hacker, Belgian. Anon feedback: https://www.admonymous.co/giffmana ✗DMs → email
Bob McGrew
@bobmcgrewai
EXECUTIVELearning new things. Former Chief Research Officer at OpenAI, early exec at Palantir, early employee at Paypal.
Ethan Mollick
@emollick
ACADEMICProfessor @Wharton studying AI, innovation & startups. Democratizing education using tech Book: https://a.co/d/4VguzZz Substack: https://www.oneusefulthing.org/
Sholto Douglas
@_sholtodouglas
RESEARCH ENGINEERScaling RL @AnthropicAI, ex @DeepMind - working towards intelligence too cheap to meter
Joanne Jang
@joannejang
RESEARCH ENGINEERtrying to automate myself @coreautoai // prev: model behavior & labs @openai
Irwan Bello
@IrwanBello
RESEARCH ENGINEERSupercomputers & Friends, AI & Science. Founding team & Research Lead at @reflection_ai. Past: @OpenAI, Founding team @character_ai, Google Brain
David Dohan
@dmdohan
RESEARCH ENGINEERreducing perplexity @openai | past: probabilistic programs, proteins, science & reasoning @ google brain 🧠
Riley Goodside
@goodside
ENGINEERScreenshots and thoughts from the jagged frontier. Formerly: Google DeepMind, Scale.
Chelsea Sierra Voss
@csvoss
RESEARCH ENGINEERengineeress ✨ Member of Technical Staff @openai // serious play // past @pilothq, @sendwaveapp, @khanacademy, CS/math @MIT, 2x IBO gold
Joe Carlsmith
@jkcarlsmith
AI SAFETYPhilosophy, futurism, AI. Working on Claude's values @AnthropicAI. Formerly @coeff_giving. Opinions my own.
Taco Cohen
@TacoCohen
RESEARCH ENGINEERSlop janitor & post-trainologer at Meta / FAIR. Into codegen, RL, equivariance. Spent time at Qualcomm, Scyfer (acquired), UvA, Deepmind, OpenAI.
Lulu Cheng Meservey
@lulumeservey
CREATORRostra founder, Shopify board, ex Activision & Substack, writing http://www.getflack.com
Erik Brynjolfsson
@erikbryn
ACADEMICDirector @DigEconLab Co-founder, @Workhelix @StanfordHAI @SIEPR @Stanford https://www.amazon.com/Second-Machine-Age-Prosperity-Technologies/dp/0393350649
Nathan Lambert
@natolambert
RESEARCH ENGINEERResearch @allen_ai, reasoning, open models, RL(VR/HF)... Contact via email. Writes @interconnectsai, @readsail Wrote The RLHF Book, 🏔️🏃♂️
Nikita Bier
@nikitabier
EXECUTIVEhead of product @x, advisor @solana, venture partner @lightspeedvp, ex-founder @gasappteam (acq by discord), ex-founder @thetbhapp (acq by facebook)
Kevin Patrick Murphy
@sirbayes
RESEARCHERResearch Scientist at Google DeepMind. Interested in Bayesian Machine Learning.
augustus odena
@gstsdn
RESEARCHERSomething new. Previously: AI research at TBD Labs / Meta; cofounder at @AdeptAILabs; Invented Scratchpad / Chain-of-Thought; Google Brain
MMitchell
@mmitchell_ai
AI SAFETYInterdisciplinary researcher focused on shaping AI towards long-term positive goals. ML & Ethics. Similar content in the Skies (this bird has flown).
Saining Xie
@sainingxie
RESEARCHERcofounder & chief science officer at @amilabs | faculty @nyu_courant | prev: @googledeepmind @meta (FAIR) @ucsandiego | ynwa
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
Owain Evans
@OwainEvans_UK
AI SAFETYRuns an AI Safety research group in Berkeley (Truthful AI) + Affiliate at UC Berkeley. Past: Oxford Uni, TruthfulQA, Reversal Curse. Prefer email to DM.
Scott Gray
@scottgray76
RESEARCH ENGINEERGPU Geek at @OpenAI. I have a long standing interest in neuroscience and its application to machine learning. He/Him.
Prof. Anima Anandkumar
@AnimaAnandkumar
ACADEMICAI+Science, Bren Professor @caltech, Time100, Fmr Sr Director of #AI research @nvidia Fmr Principal Scientist @awscloud
Kevin Roose
@kevinroose
CREATORNYT tech columnist, Hard Fork co-host, high-perplexity language model. Writing a book about AGI.
Jon Barron
@jon_barron
RESEARCHERPrincipal research scientist at Google DeepMind. Synthesized views are my own.
Rohan Pandey
@khoomeik
RESEARCH ENGINEERdescending cross-entropy to ascend entropy @PeriodicLabs || prev research @OpenAI @CarnegieMellon '23
Peter Steinberger 🦞
@steipete
OPEN SOURCEPolyagentmorous ClawFather. Came back from retirement to mess with AI and help a lobster take over the world. @OpenClaw🦞 + @OpenAI
⿻ Andrew Trask
@iamtrask
AI SAFETYi teach AI on X building AI with attribution-based control @openminedorg, @GoogleDeepMind, @OxfordUni, @UN, @GovAIOrg, and @CFR_org
Stephen Roller
@stephenroller
RESEARCH ENGINEERMoTS @thinkymachines. previously pre-training @googledeepmind, @character_ai, and @aiatmeta.
Kate Crawford
@katecrawford
AI SAFETYProfessor, researcher, maker of things Book: ATLAS OF AI Latest: CALCULATING EMPIRES https://t.co/f3V3WjBtb6 | MSR-NYC | @USC | Knowing Machines
Dylan HadfieldMenell
@dhadfieldmenell
AI SAFETYAssociate Prof @MITEECS working on value (mis)alignment in AI systems; Safety & Alignment Advisor at http://Character.AI; @dhadfieldmenell@bsky.social; he/him
Max Schwarzer
@max_a_schwarzer
RESEARCH ENGINEERDoing RL @AnthropicAI. Formerly VP of Research, Head of Post-Training @OpenAI. PhD with Aaron Courville and Marc Bellmare at Mila.
gabriel
@gabriel1
RESEARCH ENGINEERresearch at @OpenAI, previously at midjourney, swedish high school dropout
Dimitris Papailiopoulos
@DimitrisPapail
RESEARCHERResearcher @MSFTResearch, AI Frontiers Lab; Prof @UWMadison (on leave); reasoning in context; learning how to automate; agent of agents; babas of Inez Lily.
@levelsio
@levelsio
ENGINEER📸http://PhotoAI.com $100K/m 🛰http://RemoteOK.com $44K/m 🎮http://Vibej.am $39K/m 🏡http://InteriorAI.com $35K/m 👙http://levelsio.com + @X $14K/m 🌍http://Nomads.com $10K/m 💾http://Pieter.com $0/m
Caitlin Kalinowski
@kalinowski007
ENGINEERBuilder-strategist in physical AI. Boards: Axon, Institute of Contemporary Art SF.
Omar Khattab
@lateinteraction
ACADEMICAsst professor @MIT CSAIL @nlp_mit. Research includes http://ColBERT.ai, http://DSPy.ai (@DSPyOSS), RLMs, and GEPA. Prev: CS PhD @StanfordNLP. Research @Databricks.
Ajay Jain
@ajayj_
RESEARCH ENGINEERCo-founder @genmoai. Co-created denoising diffusion (DDPM), DreamFusion, Dream Fields. Ex Ph.D. @berkeley_ai, @googleai, @facebookai, @nvidiaai, @mit
William MacAskill
@willmacaskill
AI SAFETYConsider donating 10% to effective charities: http://www.givingwhatwecan.org/pledge Or a career for impact: http://80000hours.org My research: http://forethought.org
Kamalika Chaudhuri
@kamalikac
AI SAFETYDirector and Research Scientist, FAIR @ Meta. Former Professor at UCSD. Researcher in AI privacy, security, and generalization.
Stephanie Chan
@scychan_brains
AI SAFETYStaff Research Scientist at DeepMind. Artificial & biological brains 🤖 🧠 Societal impacts of AI + Science of AI. Views are my own.
Chris Anderson
@chr1sa
INVESTOROccupy the skies Past in drones, airtaxis and media. Present in AI+Science. Also nerdy autonomous car racing hobby at @DIYRobocars Photo by @chrismichel
Sherjil Ozair
@sherjilozair
RESEARCH ENGINEERco-founder @ project prometheus | founder @GeneralAgentsCo | previously autopilot @tesla, deep learning @googledeepmind, phd https://t.co/dxgb6gimCf, cs @iitdelhi
Tim O'Reilly
@timoreilly
FOUNDERFounder and CEO, O'Reilly Media. Watching the alpha geeks, sharing their stories, helping the future unfold. Didn't pay for a blue check, cannot make it go away
Eric Zelikman
@ericzelikman
FOUNDERcofounder & ceo @humansand - building ai for humans // was lgtm-ing @xAI, phd-ing @stanford
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💺
Peyman Milanfar
@docmilanfar
RESEARCHERDistinguished Scientist at Google. National Academy of Engineering. Computational Imaging ∩ AI. Posts are personal opinions
Brandon McKinzie
@mckbrando
RESEARCH ENGINEERresearch @OpenAI | prev: multimodal @Apple, physics/cs @UCBerkeley
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.
heiner
@HeinrichKuttler
RESEARCH ENGINEERex @xAI, @InflectionAI, @AIatMeta, @DeepMind, @Google, @LMU_Muenchen, PhD math-ph. Opinions my own. (Can be yours for a small fee.)
Allan Dafoe
@AllanDafoe
AI SAFETYAGI governance: navigating the transition to beneficial AGI (Google DeepMind)
Teortaxes▶️ (DeepSeek 推特🐋铁粉 2023 – ∞)
@teortaxesTex
CREATORWe're in a race. It's not USA vs China but humans and AGIs vs ape power centralization. @deepseek_ai stan #1, 2023–Deep Time «C’est la guerre.» ®1
Peter Chen
@peterxichen
RESEARCHERBuilding general purpose robotics at Amazon FAR. Previously Covariant CEO and Co-Founder, @OpenAI, @UCBerkeley PhD.
Laurens van der Maaten
@lvdmaaten
RESEARCH ENGINEERMember of Technical Staff at Anthropic. Ex-Meta. t-SNE. Llama 3. DenseNet. Web-scale weakly supervised vision. CrypTen.
jasmine collins
@jazco
RESEARCH ENGINEERresearch scientist @databricks! previously @berkeley_ai phd, @googleai and @metaai. interested in human brains and computer brains 💫
Jong Wook Kim 💟
@_jongwook_kim
RESEARCHERMember of Technical Staff @OpenAI; previously at @nyuMARL, @SpotifyResearch, @pandoramusic, @kakaocorpglobal, and @NCSOFT
Ankur Handa
@ankurhandos
RESEARCHERRobotics Researcher @NvidiaAI. Co-lead the dex team focussed on superhuman dexterity. Previously, Researcher at @OpenAI
dr. jack morris
@jxmnop
RESEARCHERresearch // language models, information theory, science of AI // formerly @cornell
Brendan O'Donoghue
@bodonoghue85
RESEARCH ENGINEERDirector of Research at @GoogleDeepMind, working on generative models, deep learning, RL. PhD from @stanford. Gemini Diffusion lead.
Jack Parker-Holder
@jparkerholder
RESEARCH ENGINEERCo-lead of Genie 3 and World Models team lead @GoogleDeepMind, Honorary Associate Professor @UCL_DARK. Dad (🧒👶🐶), CFC fan, BJJ. Views are my own :)
Alexia Jolicoeur-Martineau
@jm_alexia
RESEARCHERAI Researcher 🐱💻 2025 ARC Prize Winner I build generative AI for images, videos, text, tabular data, weights, molecules, and video games.
Rosie Campbell
@RosieCampbell
AI SAFETYForever expanding my nerd/bimbo Pareto frontier. AI welfare 🤝 AI safety. Managing Director @eleosai, Ex-OpenAI, 2024 @rootsofprogress fellow
Adrien Ecoffet
@AdrienLE
RESEARCH ENGINEERTrying to make AGI go well. Researcher at @openai. Views my own.
Daniel Eth (yes, Eth is my actual last name)
@daniel_271828
AI SAFETYResearching effects of automated AI R&D | pro-America, pro-tech, & pro-AI safety
Matt Shumer
@mattshumer_
INVESTORInvestor in @GroqInc @Etched @Rork @DaytonaIO @OpenRouter + more. Prev: CEO @HyperWriteAI, @OthersideAI Try: https://t.co/gupFzizHCd Press: mattshumermedia@gmail.com
Quanquan Gu
@QuanquanGu
ACADEMICProfessor @UCLA, Pretraining and Scaling at ByteDance Seed | Recent work: Seed2.0, SeedFold | Opinions are my own
Justine Moore
@venturetwins
INVESTORPartner @a16z AI 🤖 and twin to @omooretweets | Investor in @elevenlabs, @bfl_ml, @hedra_labs, @krea_ai, @heyglif, @ShizukuAILabs, @wabi, @WaveFormsAI
Zachary Nado
@zacharynado
RESEARCH ENGINEERResearch eng @GoogleDeepMind on Gemini pretrain. Personal acct. Past: swe intern @SpaceX, ugrad researcher in @tserre lab @BrownUniversity. All opinions my own.
Melvin Johnson
@melvinjohnsonp
RESEARCH ENGINEERResearcher @ Google Research. Multilingual NLP and MT. Previously, Stanford CS.
Matt Clifford
@matthewclifford
FOUNDERCo-founder @join_ef; Chair @ARIA_Research; Make Britain Rich Again.
Sasha Luccioni, PhD 🦋🌎✨🤗
@SashaMTL
RESEARCHERClimate & AI Lead of @HuggingFace | Member of ClimateChangeAI | @TEDTalks speaker . (She/her/Dr/🦋)
Cas (Stephen Casper)
@StephenLCasper
AI SAFETYAI safeguards & gov. research. PhD student @MIT_CSAIL (mnr. Public Policy), and Fellow at @BKCHarvard. Fmr. @AISecurityInst. https://stephencasper.com/
Steven Adler
@sjgadler
AI SAFETYAI safety researcher (ex-OpenAI: danger evals, AGI readiness, etc), writing at https://clear-eyed.ai
Rowan Cheung
@rowancheung
CREATORFounder of the world’s most read daily AI newsletter @therundownai. Sharing the latest developments in the world of artificial intelligence.
elvis
@omarsar0
FOUNDERBuilding @dair_ai • Prev: Meta AI, Elastic, PhD • New AI learning portal: https://academy.dair.ai/
Michael Levin
@drmichaellevin
ACADEMICScientist at Tufts University; my lab studies anatomical and behavioral decision-making at multiple scales of biological, artificial, and hybrid systems.
Yuchen Jin
@Yuchenj_UW
RESEARCH ENGINEERCooking fun AI systems & products @databricks. Prev: co-founder & CTO @ Hyperbolic, OctoAI (acquired by @nvidia) Apache TVM, PhD @ University of Washington.
Nathan Labenz
@labenz
CREATORAI Scout, building text-2-video @Waymark, host of The Cognitive Revolution podcast
Piotr Mirowski @bsky.social
@MirowskiPiotr
RESEARCHERResearch scientist in machine learning @DeepMind. Ex-@BellLabs/@Microsoft/PhD@NYU. Work in AI for weather and for artistic creativity. he/him. Account inactive.
Erik Torenberg
@eriktorenberg
INVESTORGeneral Partner @a16z. Positive-sum. Striving for a thousand year heart.
Jeff Donahue
@jeffdonahue
RESEARCHERResearch Scientist working on Veo @DeepMind Previously: PhD @berkeley_ai
Alex Rives
@alexrives
RESEARCH ENGINEERAI for scientific discovery. Head of Science, Biohub. Founder and scientific director of the ESM project.
Marius Hobbhahn
@MariusHobbhahn
AI SAFETYCEO at Apollo Research @apolloaievals prev. ML PhD with Philipp Hennig & AI forecasting @EpochAIResearch
🇺🇦 Alex Polozov
@Skiminok
RESEARCH ENGINEERMember of Technical Staff @reflection_ai • previously @GoogleDeepMind, @Theteamatx, @MSFTResearch, @uwcse • program synthesis, AI for Code & SWE
Omar Sanseviero
@osanseviero
ENGINEERDeveloper Experience Lead at @GoogleDeepMind Building Gemini API, Gemma, AI Studio and more AI products. My views ex-Chief Llama Officer @huggingface 🇵🇪🇲🇽
Eli Lifland
@eli_lifland
AI SAFETYAI forecasting and governance @AI_Futures_. Co-author of AI 2027 and the AI Futures Model. Also @aidigest_, @SamotsvetyF. Prev @oughtinc
Stephanie Zhan
@stephzhan
INVESTORGP @Sequoia, investing in AI, from company formation. 1st partner to @linear @mach_industries @middeskhq @reflection_ai @ricursiveai @skildai @tavus
Stanislas Polu
@spolu
RESEARCH ENGINEERco-founder+engineer(https://t.co/SXBR0l9TrF); alumni(https://t.co/z6zJ8xaKGI, https://t.co/CvVTA1CHAo, https://t.co/WOVEe2aLcK, https://t.co/ui9I4Nj7o1);
Trung Phan
@TrungTPhan
CREATORWrite on business with @workweekinc. Building a privacy-first AI research app @bearlyai.
Casey Newton
@CaseyNewton
CREATORWriting @platformer. Co-hosting Hard Fork @nytimes. Posting good tweets to Instagram stories @crumbler. casey@platformer.news | http://mastodon.social/@caseynewton
Will Manidis
@WillManidis
CREATORand I saw the holy city, the new jerusalem, coming down out of heaven
Zizheng Pan
@zizhpan
RESEARCHERResearcher @deepseek_ai | Previously @nvidia @MonashUni @UniofAdelaide. Words are my own.
Kylie Robison
@kyliebytes
CREATORtake it easy dude, but take it • writing @corememory • robison (rah-beh-son) not robinson • signal @ kylie.111
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
Trapit Bansal
@TrapitBansal
RESEARCHERAI Research @Meta TBD Lab | Previously @OpenAI co-creator of OpenAI o1 (thinking in LLM)
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
Michelle Fradin
@michelle_fradin
EXECUTIVEmaking helpful machines @OpenAI, investing in friends, previously @Sequoia, @Lawrencetheband fan
Saffron Huang
@saffronhuang
RESEARCHERhow shall we live together? societal impacts researcher @AnthropicAI • ex @GoogleDeepMind @AISecurityInst⋅ @collect_intel co-founder • views mine
Peter J. Liu
@peterjliu
RESEARCHERBuilding @getcompoundai (hiring: http://twentylabs.ai/careers). Was Research Scientist @ Google Brain / DeepMind, language model research. 🇨🇦🇺🇸
Lindsay McCallum Rémy
@lindsmccallum
EXECUTIVEcomms @openai // previously @headlinevc @twitter 1.0 @publicisgroupe paris // very online
Jeremy Nixon - Automating AI Research
@JvNixon
RESEARCHERFounder of Infinity @infinity_ai_. Created the AGI Houses @agihousesf. Prev. Research at Google Brain & Math @Harvard.
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
Toby Shevlane
@tshevl
FOUNDER@_Mantic_AI cofounder & CEO, on a mission to solve forecasting. Prev: research scientist @GoogleDeepMind, PhD at @UniofOxford.
reah miyara
@reah_ai
ENGINEERbuilding rl systems & model evals ex @openai, @googledeepmind, @ibmwatsonx, @nasajpl
Jonathan Lachman
@jonlachman
EXECUTIVEfounding head of operations @thinkymachines // prev: head of special projects @openai, obama @whitehouse national security budget director
Roy Frostig
@froystig
RESEARCHERresearch scientist at @googledeepmind. co-author of JAX (https://github.com/jax-ml/jax)