President & Co-Founder @OpenAI
Andrew Ng
@AndrewYNg
RESEARCHERCo-Founder of Coursera; Stanford CS adjunct faculty. Former head of Baidu AI Group/Google Brain. #ai #machinelearning, #deeplearning #MOOCs
Jack Clark
@jackclarkSF
POLICY@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
Lilian Weng
@lilianweng
RESEARCHERCo-founder of Thinking Machines Lab @thinkymachines; Ex-VP, AI Safety & robotics, applied research @OpenAI; Author of Lil'Log
Sebastien Bubeck
@SebastienBubeck
RESEARCHERI work on AI at OpenAI. Former VP AI and Distinguished Scientist at Microsoft.
Jim Fan
@DrJimFan
RESEARCHERNVIDIA Director of Robotics & Distinguished Scientist. Co-Lead of GEAR lab. Solving Physical AGI, one motor at a time. Stanford Ph.D. OpenAI's 1st intern.
Barret Zoph
@barret_zoph
RESEARCHER@openai Past: - CTO & Co-Founder Thinking Machines Lab (@thinkymachines) - VP Research (Post-Training) @openai - Research Scientist at Google Brain
William Fedus
@LiamFedus
RESEARCHERCo-Founder of @periodiclabs Past: VP of Post-Training @OpenAI; Google Brain
Jascha Sohl-Dickstein
@jaschasd
RESEARCHERMember of the technical staff @ Anthropic. Most (in)famous for inventing diffusion models. AI + physics + neuroscience + dynamics.
Shane Gu
@shaneguML
RESEARCHERGemini/Veo Thinking, Senior Staff AE @GoogleDeepMind. 🇯🇵-born 🇨🇳🇨🇦. ex: Gemini 1.5-3, GPT-4 @OpenAI, Google Robotics (JP: @shanegJP). Personal opinions.
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
Joshua Achiam
@jachiam0
RESEARCHERFreedom, flourishing, and abundance. Chief Futurist @openai. Main author of http://spinningup.openai.com
Logan Kilpatrick
@OfficialLoganK
ENGINEERMember of technical staff, working on @GoogleAIStudio, the Gemini API, & Kaggle. My views!
Zico Kolter
@zicokolter
RESEARCHERProfessor and Head of Machine Learning Department at @CarnegieMellon. Board member @OpenAI and @Qualcomm. Chief Scientist @GraySwanAI.
Bob McGrew
@bobmcgrewai
EXECUTIVELearning new things. Former Chief Research Officer at OpenAI, early exec at Palantir, early employee at Paypal.
Tim Rocktäschel
@_rockt
RESEARCHERProfessor of AI @AI_UCL, PI @UCL_DARK, Fellow @ELLISforEurope. Ex @GoogleDeepMind @AIatMeta @CompSciOxford
clem 🤗
@ClementDelangue
FOUNDERCo-founder & CEO @HuggingFace 🤗, the open and collaborative platform for AI builders
Aidan Clark
@_aidan_clark_
RESEARCHERQualitative Mathematics @OpenAI Ex: @DeepMind Hae sententiae verbaque mihi soli sunt
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).
Vinod Khosla
@vkhosla
INVESTORentrepreneurship zealot, grounded technology possibilist, believer in the power of ideas, passionate about sustainability & impact
Jeff Clune
@jeffclune
RESEARCHERProfessor, CS, U. British Columbia. CIFAR AI Chair, Vector Institute. Sr. Advisor, DeepMind | ML, AI, deep RL, deep learning, AI-Generating Algorithms (AI-GAs)
Boaz Barak
@boazbaraktcs
RESEARCHERComputer Scientist. See also http://windowsontheory.org . @harvard @openai opinions my own.
Chelsea Sierra Voss
@csvoss
ENGINEERengineeress ✨ Member of Technical Staff @openai // serious play // past @pilothq, @sendwaveapp, @khanacademy, CS/math @MIT, 2x IBO gold
Joanne Jang
@joannejang
EXECUTIVEtrying to automate myself @coreautoai // prev: model behavior & labs @openai
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.
David Dohan
@dmdohan
RESEARCHERreducing perplexity @openai | past: probabilistic programs, proteins, science & reasoning @ google brain 🧠
Prafulla Dhariwal
@prafdhar
RESEARCHERTechnical fellow @OpenAI. Co-creator of GPT-4o, GPT-3, DALL-E 2, Jukebox, Glow, PPO. Previously @MIT '17
Irwan Bello
@IrwanBello
RESEARCHERSupercomputers & Friends, AI & Science. Founding team & Research Lead at @reflection_ai. Past: @OpenAI, Founding team @character_ai, Google Brain
Joe Carlsmith
@jkcarlsmith
RESEARCHERPhilosophy, futurism, AI. Working on Claude's values @AnthropicAI. Formerly @coeff_giving. Opinions my own.
sarah guo
@saranormous
INVESTORstartup investor/helper, founder @conviction. accelerating AI adoption, interested in progress. tech podcast: @nopriorspod
Kevin Weil 🇺🇸
@kevinweil
EXECUTIVEVP Science @OpenAI, BoD @Cisco @nature_org, LTC @USArmyReserve Ex: Pres @Planet, Head of Product @Instagram @Twitter ❤️ @elizabeth ultramarathons kids cats math
Taco Cohen
@TacoCohen
RESEARCHERSlop janitor & post-trainologer at Meta / FAIR. Into codegen, RL, equivariance. Spent time at Qualcomm, Scyfer (acquired), UvA, Deepmind, OpenAI.
Karina Nguyen
@karinanguyen
RESEARCHERbuilding a new ai co @thoughtfullab_ (hiring!), prev. AI research & product @OpenAI, @AnthropicAI, @maisonagi (side proj)
Erik Brynjolfsson
@erikbryn
RESEARCHERDirector @DigEconLab Co-founder, @Workhelix @StanfordHAI @SIEPR @Stanford https://www.amazon.com/Second-Machine-Age-Prosperity-Technologies/dp/0393350649
Behnam Neyshabur
@bneyshabur
RESEARCHERsomething new 💼 Past: Co-leading AI Scientist effort @AnthropicAI (Discovery team), Gemini @GoogleDeepMind (Co-led Blueshift team) 🎒Traveling & Backpacking
will depue
@willdepue
RESEARCHERretired ex @openai (posttraining o3/4o, sora 1 & 2, pretraining moonshots)
Shengjia Zhao
@shengjia_zhao
RESEARCHERChief Scientist @ Meta MSL. Formerly MTS @ OpenAI, PhD @ Stanford. I train models. All opinions my own.
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).
swyx 🇸🇬
@swyx
CREATORachieve ambition with intentionality, intensity, integrity & insanity. affiliations: - @dxtipshq - @cognition - @temporalio - @aidotengineer - @latentspacepod
Hyung Won Chung
@hwchung27
RESEARCHERAI Research Scientist @Meta Superintelligence Labs. Past: @OpenAI / @Google Brain / PhD @MIT
Scott Gray
@scottgray76
ENGINEERGPU Geek at @OpenAI. I have a long standing interest in neuroscience and its application to machine learning. He/Him.
Arvind Neelakantan
@arvind_io
RESEARCHERResearch Scientist, @GoogleDeepMind Past: @AIatMeta , @OpenAI, @Google Brain PhD @UMassAmherst
Kevin Roose
@kevinroose
CREATORNYT tech columnist, Hard Fork co-host, high-perplexity language model. Writing a book about AGI.
Rohan Pandey
@khoomeik
RESEARCHERdescending cross-entropy to ascend entropy @PeriodicLabs || prev research @OpenAI @CarnegieMellon '23
gabriel
@gabriel1
RESEARCHERresearch at @OpenAI, previously at midjourney, swedish high school dropout
Caitlin Kalinowski
@kalinowski007
EXECUTIVEBuilding the physical future of AI. Boards: Axon, Institute of Contemporary Art SF.
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.
Ilya Kostrikov
@ikostrikov
RESEARCHERPre-Training Researcher @OpenAI, previously: RL/post-training @OpenAI, Postdoc at UC Berkeley @berkeley_ai, Researcher at Google Brain, PhD in CS @CILVRatNYU
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)
Patrick Hsu
@pdhsu
RESEARCHER@ArcInstitute co-founder, @BerkeleyBioE professor, @ThriveCapital investor | biology and ML research | 🇨🇦 prev @harvard @broadinstitute, Fast Grants
rishi
@RishiBommasani
RESEARCHERSocietal/economic impacts of AI; AI policy & governance @StanfordHAI Stanford CS PhD w/ @percyliang @jurafsky Cornell CS undergrad w/ @clairecardie
Jiahui Yu
@jhyuxm
RESEARCHERLead Multimodal @Meta Superintelligence Lab. Previously led Perception @OpenAI; co-led Gemini Multimodal @GoogleDeepMind.
Zhiqing Sun
@EdwardSun0909
RESEARCHERAgents @Meta MSL TBD Lab. previously posttraining research @OpenAI train LLMs to do things: deep research, chatgpt agent, etc. CS PhD @LTIatCMU
Adam.GPT
@TheRealAdamG
EXECUTIVEGTM 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.
Brandon McKinzie
@mckbrando
RESEARCHERresearch @OpenAI | prev: multimodal @Apple, physics/cs @UCBerkeley
Jacob Austin
@jacobaustin132
RESEARCHERI sometimes do AI research. I also play piano and climb. NYC. Previously @GoogleDeepMind, @Google Brain. Opinions my own
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.
heiner
@HeinrichKuttler
ENGINEERex @xAI, @InflectionAI, @AIatMeta, @DeepMind, @Google, @LMU_Muenchen, PhD math-ph. Opinions my own. (Can be yours for a small fee.)
Dan Roberts
@danintheory
RESEARCHERScientist @OpenAI. Prev. co-founder @diffeo, acquired by @salesforce // co-authored The Principles of Deep Learning Theory // studied gravity.
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.
Markus Wulfmeier
@m_wulfmeier
RESEARCHERChief Scientist #Nomagic - Prev. AI & Robotics @GoogleDeepMind @oxfordrobots @berkeley_ai @ETH @MIT - European @ELLISforEurope
Allan Dafoe
@AllanDafoe
POLICYAGI governance: navigating the transition to beneficial AGI (Google DeepMind)
mark pincus
@markpinc
FOUNDERFounder @zynga. Partner/Reinvent Capital. Passionate product maker, biker, surfer. Father of three amazing girls and two amazing boys! Pre order my book!
Matt Shumer
@mattshumer_
INVESTORInvestor in @GroqInc @Etched @Rork @DaytonaIO @OpenRouter + more. Prev: CEO @HyperWriteAI, @OthersideAI Try: http://agent-s.app Press: mattshumermedia@gmail.com
Laurens van der Maaten
@lvdmaaten
RESEARCHERMember of Technical Staff at Anthropic. Ex-Meta. t-SNE. Llama 3. DenseNet. Web-scale weakly supervised vision. CrypTen.
Jong Wook Kim 💟
@_jongwook_kim
RESEARCHERMember of Technical Staff @OpenAI; previously at @nyuMARL, @SpotifyResearch, @pandoramusic, @kakaocorpglobal, and @NCSOFT
Pavel Izmailov
@Pavel_Izmailov
RESEARCHERResearcher @AnthropicAI 🤖 Assistant Professor @nyuniversity 🏙️ Previously @OpenAI #StopWar 🇺🇦
Roberta Raileanu
@robertarail
RESEARCHEROpen-Ended Team Lead and Senior Staff Research Scientist @GoogleDeepMind. Honorary Lecturer @UCL. ex @Meta | @NYU | @Princeton.
Angela Jiang
@jiangelaa
POLICYAI-maxxing @worktrace_ai 🩷 | Prev. Public Policy & Product @OpenAI, CS PhD @CarnegieMellon
Simon Shaolei Du
@SimonShaoleiDu
RESEARCHERReasoning Chief Scientist @miromind_ai. Associate Professor @uwcse. Prev @xai. Postdoc @the_IAS. PhD in machine learning @mldcmu.
Austen Allred
@Austen
FOUNDERFounder http://GauntletAI.com: Free AI training for the smartest engineers. Will tweet as I wish and suffer the consequences. Accelerando: @kellyclaudeai
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
Brendan O'Donoghue
@bodonoghue85
RESEARCHERDirector of Research at @GoogleDeepMind, working on generative models, deep learning, RL. PhD from @stanford. Gemini Diffusion lead.
Justine Moore
@venturetwins
INVESTORPartner @a16z AI 🤖 and twin to @omooretweets | Investor in @elevenlabs, @bfl_ml, @hedra_labs, @krea_ai, @MireloAI, @ShizukuAILabs, @wabi, @WaveFormsAI
José Luis Ricón Fernández de la Puente
@ArtirKel
RESEARCHERHead of Theory at @RetroBio_ , enjoyer of things, blog: http://nintil.com
Cas (Stephen Casper)
@StephenLCasper
RESEARCHERAI safeguards & gov. research. PhD student @MIT_CSAIL (mnr. Public Policy), and Fellow at @BKCHarvard. Fmr. @AISecurityInst. https://stephencasper.com/
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
Erik Torenberg
@eriktorenberg
INVESTORGeneral Partner @a16z. Positive-sum. Striving for a thousand year heart.
Irene Solaiman
@IreneSolaiman
POLICYai stuff @huggingface 🤗 founded @evaluatingevals views=mine former: @OpenAI @Harvard aspiring ukulele-singer
Toby Pohlen
@TobyPhln
ENGINEERSleeping. Previously founding team @xAI, engineer @GoogleDeepMind. @RWTH alumnus.
fraser
@Fraser
INVESTORvc at @sparkcapital past: head of product at @openai; co-founder/ceo of an AI startup that was acquired by Airbnb
Marco Mascorro
@Mascobot
INVESTORrewarding compounding curiosity | roboticist | Prev: Partner @a16z, cofounder @Fellow_AI
Sarah Catanzaro
@sarahcat21
INVESTOR“All methods are sacred if they are internally necessary” (GP @amplifypartners, prev @canvasvc; Head of Data @Mattermark; @palantirtech; @c4ads)
Kate Rouch 🛡️
@kate_rouch
EXECUTIVEPassionate about using creativity to help founders + their category defining companies win. OpenAI CMO 🚀🌚 Proud mom 👧👶🏼. Opinions = mine.
Cheng Lu
@clu_cheng
RESEARCHERResearch @Meta MSL TBD Lab. Previously pretraining & multimodal @OpenAI. PhD @Tsinghua_Uni. Interested in scalable machine learning.
Anastasios Nikolas Angelopoulos
@ml_angelopoulos
RESEARCHERMeasuring intelligence @arena. Statistics, model evaluation. Formerly @Berkeley_EECS, @stanford_ee, student researcher @GoogleDeepMind.
Jeff Donahue
@jeffdonahue
RESEARCHERResearch Scientist working on Veo @DeepMind Previously: PhD @berkeley_ai
Avital Oliver
@avitaloliver
RESEARCHERNeural Network Plumber @OpenAI. Formerly Google Brain. Worked on http://github.com/google/flax. I used to think I'd become a math professor.
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
Pranav Shyam
@recurseparadox
RESEARCHERresearch scientist at google deepmind. ಕನ್ನಡಿಗ. past: generative models @openai
Stanislas Polu
@spolu
ENGINEERco-founder+engineer(https://dust.tt); alumni(https://openai.com, https://stripe.com, https://stanford.edu, https://polytechnique.edu);
Trung Phan
@TrungTPhan
CREATORWrite on business with @workweekinc. Building a privacy-first AI research app @bearlyai.
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
Peter J. Liu
@peterjliu
RESEARCHERBuilding @getcompoundai (hiring: http://twentylabs.ai/careers). Was Research Scientist @ Google Brain / DeepMind, language model research. 🇨🇦🇺🇸
Brydon Eastman
@brhydon
RESEARCHER🇨🇦 Mathematician (heavy on the ish) @thinkymachines Prev. MTS @OpenAI; PhD @WaterlooMath Certified wife guy, featured twice in Lego Magazine © ☕//🤔➡️💻
Scott Gottlieb, MD 🇺🇸
@ScottGottliebMD
POLICYSenior Fellow @AEI. Partner @NEA. Contributor @CNBC. 23rd Commissioner of the @US_FDA. Public Boards: @Pfizer @Illumina @TempusAI @UnitedHealthGrp
Jay Hack
@mathemagic1an
ENGINEERHead of AI @clickup. Tweets about AI, computing and knowledge work. Previously founder @codegen / ML @palantir / CS @stanford. Not a pseudonym.
Kylie Robison
@kyliebytes
CREATORtake it easy dude, but take it • writing @corememory • robison (rah-beh-son) not robinson • signal @ kylie.111
Jacob Helberg
@jacobhelberg
POLITICIANUnder Secretary of State proudly serving @realdonaldtrump @potus @secrubio (personal account)
Ruxandra Teslo 🧬
@RuxandraTeslo
POLICYClinical Trial Abundance @RenPhilanthropy | Fertility | @EmergentVentures | previously: PhD @sangerinstitute | long-form https://www.writingruxandrabio.com/
DANΞ
@cryps1s
EXECUTIVECISO @OpenAI | Ex-CISO @PalantirTech | Occasional Shitposter | 🇺🇸 All views are my own, not my employer. Duh. (Tweets == 30d retention)
Michelle Fradin
@michelle_fradin
EXECUTIVEmaking helpful machines @OpenAI, investing in friends, previously @Sequoia, @Lawrencetheband fan
Lindsay McCallum Rémy
@lindsmccallum
EXECUTIVEcomms @openai // previously @headlinevc @twitter 1.0 @publicisgroupe paris // very online
Thomas Dimson
@turtlesoupy
ENGINEERTechnical Staff @OpenAI. Former CEO @illdotinc (acq. OpenAI). Authored “the algorithm” @Instagram. 🇨🇦. Purple monkey dishwasher.
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
Jeffrey Wang
@jeffreygwang
RESEARCHERResearcher @OpenAI, working on pretraining & reasoning. Previously (and perhaps again) CS/Math/English @Harvard.
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.
Michael Lai
@Mtclai
POLITICIANAI for state + local government @AnthropicAI | SF elected | community builder
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
Giambattista 'Gb' Parascandolo
@giambattista92
RESEARCHERresearch fellow at @OpenAI for reasoning prev also @DeepMind, Google X, @MPI_IS, @ETH
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
julia villagra
@juliacvillagra
EXECUTIVE@coreautoai ex-Chief People Officer OpenAI | ex-HRT Head of People founder, Tertulia | board member, ICA SF | Mom