Ilya Kostrikov

John Schulman

@johnschulman2

Recently started @thinkymachines. Interested in reinforcement learning, alignment, birds, jazz music

Soumith Chintala

@soumithchintala

Building new things @thinkymachines. Also dabble in robotics at NYU. Cofounded @PyTorch. AI is delicious when it is accessible and open-source.

Christian Szegedy

@ChrSzegedy

#deeplearning, #ai research scientist. Opinions are mine.

Mira Murati

@miramurati

Now building @thinkymachines. Previously CTO @OpenAI

Lilian Weng

@lilianweng

Co-founder of Thinking Machines Lab @thinkymachines; Ex-VP, AI Safety & robotics, applied research @OpenAI; Author of Lil'Log

Sam Bowman

@sleepinyourhat

AI alignment + LLMs at Anthropic. On leave from NYU. Views not employers'. No relation to @s8mb. Into @givingwhatwecan.

Sergey Levine

@svlevine

Associate Professor at UC Berkeley Co-founder, Physical Intelligence

Barret Zoph

@barret_zoph

@openai Past: - CTO & Co-Founder Thinking Machines Lab (@thinkymachines) - VP Research (Post-Training) @openai - Research Scientist at Google Brain

Jason Wei

@_jasonwei

ai researcher @meta superintelligence labs, past: openai, google 🧠

Sander Dieleman

@sedielem

Research Scientist at Google DeepMind (WaveNet, Imagen, Veo). I tweet about deep learning (research + software), music, generative models (personal account).

Jerry Tworek

@MillionInt

CEO 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

Freedom, flourishing, and abundance. Chief Futurist @openai. Main author of http://spinningup.openai.com

Luke Metz

@Luke_Metz

OpenAI Previously: Thinking Machines, Google Brain

Ben Poole

@poolio

research scientist at google brain. phd in neural nonsense from stanford.

Ryan Adams

@ryan_p_adams

Machine Learning Researcher, CS Professor (@PrincetonCS), Dad, Woodworker

Lucas Beyer (bl16)

@giffmana

Researcher (now: Meta. ex: OpenAI, DeepMind, Brain, RWTH Aachen), Gamer, Hacker, Belgian. Anon feedback: https://www.admonymous.co/giffmana ✗DMs → email

Bob McGrew

@bobmcgrewai

Learning new things. Former Chief Research Officer at OpenAI, early exec at Palantir, early employee at Paypal.

Tim Rocktäschel

@_rockt

Professor of AI @AI_UCL, PI @UCL_DARK, Fellow @ELLISforEurope. Ex @GoogleDeepMind @AIatMeta @CompSciOxford

Aidan Clark

@_aidan_clark_

Qualitative Mathematics @OpenAI Ex: @DeepMind Hae sententiae verbaque mihi soli sunt

Sholto Douglas

@_sholtodouglas

Scaling RL @AnthropicAI, ex @DeepMind - working towards intelligence too cheap to meter

Matthew Johnson

@SingularMattrix

Researcher at Google Brain. I work on JAX (https://github.com/google/jax).

Chelsea Sierra Voss

@csvoss

engineeress ✨ Member of Technical Staff @openai // serious play // past @pilothq, @sendwaveapp, @khanacademy, CS/math @MIT, 2x IBO gold

Joanne Jang

@joannejang

trying to automate myself @coreautoai // prev: model behavior & labs @openai

David Dohan

@dmdohan

reducing perplexity @openai | past: probabilistic programs, proteins, science & reasoning @ google brain 🧠

Irwan Bello

@IrwanBello

Supercomputers & Friends, AI & Science. Founding team & Research Lead at @reflection_ai. Past: @OpenAI, Founding team @character_ai, Google Brain

Tengyu Ma

@tengyuma

Assistant professor at Stanford; Co-founder of Voyage AI (http://voyageai.com) ; Working on ML, DL, RL, LLMs, and their theory.

Aäron van den Oord

@avdnoord

Lead of the GenMedia team working on Veo, Imagen, Genie, Nano Banana, ... Research Scientist @ DeepMind

Karina Nguyen

@karinanguyen

building a new ai co @thoughtfullab_ (hiring!), prev. AI research & product @OpenAI, @AnthropicAI, @maisonagi (side proj)

Leo Gao

@nabla_theta

working on AGI alignment. prev: GPT-Neo, the Pile, LM evals, RL overoptimization, scaling SAEs to GPT-4, interp via circuit sparsity. EleutherAI cofounder.

Nathan Lambert

@natolambert

Research @allen_ai, reasoning, open models, RL(VR/HF)... Contact via email. Writes @interconnectsai, @readsail Wrote The RLHF Book, 🏔️🏃‍♂️

Behnam Neyshabur

@bneyshabur

something new 💼 Past: Co-leading AI Scientist effort @AnthropicAI (Discovery team), Gemini @GoogleDeepMind (Co-led Blueshift team) 🎒Traveling & Backpacking

will depue

@willdepue

retired ex @openai (posttraining o3/4o, sora 1 & 2, pretraining moonshots)

Shengjia Zhao

@shengjia_zhao

Chief Scientist @ Meta MSL. Formerly MTS @ OpenAI, PhD @ Stanford. I train models. All opinions my own.

Ethan Perez

@EthanJPerez

Large language model safety

Tim Dettmers

@Tim_Dettmers

Creator of bitsandbytes. Professor @CarnegieMellon and Research Scientist @allen_ai . I blog about deep learning and PhD life at http://timdettmers.com.

Eric Wallace

@Eric_Wallace_

research @openai

Brandon Amos

@brandondamos

🧙 RL @Reflection_AI past: @MetaAi @GoogleDeepmind @SCSatCMU @Cornell_Tech

Yang Song

@DrYangSong

Research Principal of MSL

Gabriel Synnaeve

@syhw

Nerd & Dad. RL & CodeGen research since before it was cool.

Joelle Pineau

@jpineau1

Chief AI Officer, @cohere Professor of Computer Science, @mcgillu Core academic member, @Mila_Quebec Ex-Meta (FAIR team)

Hyung Won Chung

@hwchung27

AI Research Scientist @Meta Superintelligence Labs. Past: @OpenAI / @Google Brain / PhD @MIT

Aidan McLaughlin

@aidan_mclau

research scientist @openai

Saining Xie

@sainingxie

cofounder & chief science officer at @amilabs | faculty @nyu_courant | prev: @googledeepmind @meta (FAIR) @ucsandiego | ynwa

Tejal Patwardhan

@tejalpatwardhan

research @openai // pain is the moat

Scott Gray

@scottgray76

GPU Geek at @OpenAI. I have a long standing interest in neuroscience and its application to machine learning. He/Him.

Hongyu Ren

@ren_hongyu

research @meta superintelligence. CS PhD @stanford. prev @openai.

Isa Fulford

@isafulf

research @openai

Rohan Pandey

@khoomeik

descending cross-entropy to ascend entropy @PeriodicLabs || prev research @OpenAI @CarnegieMellon '23

Yuandong Tian

@tydsh

co-founder of Stealth Startup. ex-Meta FAIR Director. ex-Google. Reasoning, Optimization and Understanding LLM. Novelist in spare time. PhD in @CMU_Robotics.

Ananya Kumar

@ananyaku

Researcher at Meta TBD Labs. Previously core contributor to o1, o3, gpt5, at OpenAI. PhD at Stanford University AI Lab with Percy Liang and Tengyu Ma

Rowan Zellers

@rown

multimodal @thinkymachines. I also like to climb rocks and throw pottery. http://rowanzellers.com (he/him)

Danijar Hafner

@danijarh

Building AI that autonomously understands and interacts with the world. Previous: @GoogleDeepMind @UCBerkeley @UofT

Max Schwarzer

@max_a_schwarzer

Doing RL @AnthropicAI. Formerly VP of Research, Head of Post-Training @OpenAI. PhD with Aaron Courville and Marc Bellmare at Mila.

Ted Sanders

@sandersted

Research at OpenAI. Be kind to others, and yourself.

Rishabh Agarwal

@agarwl_

Reinforcement Learner @periodiclabs, Adjunct Prof at McGill. Ex Meta, DeepMind, Brain, @iitbombay. NeurIPS Best Paper, On-Policy Distillation

Tao Xu

@txhf

Learning Machine at OpenAI

Stephen McAleer

@McaleerStephen

AI researcher at Anthropic

christina kim

@christinahkim

researcher @openai

Ofir Nachum

@ofirnachum

Research at @OpenAI. Previously at @GoogleAI on the Brain Team. Doing work on #ReinforcementLearning and #MachineLearning

Kai

@kaicathyc

Occasionally here. Currently research @OpenAI.

Jiahui Yu

@jhyuxm

Lead Multimodal @Meta Superintelligence Lab. Previously led Perception @OpenAI; co-led Gemini Multimodal @GoogleDeepMind.

Stephanie Chan

@scychan_brains

Staff Research Scientist at DeepMind. Artificial & biological brains 🤖 🧠 Societal impacts of AI + Science of AI. Views are my own.

Abhishek Gupta

@abhishekunique7

Assistant Professor at University of Washington. I like robots, and reinforcement learning. Previously: post-doc at MIT, PhD at Berkeley

Yu Bai

@yubai01

Training @OpenAI. Previously @SFResearch, PhD @Stanford.

Preetum Nakkiran

@PreetumNakkiran

Mirendil

Zhiqing Sun

@EdwardSun0909

Agents @Meta MSL TBD Lab. previously posttraining research @OpenAI train LLMs to do things: deep research, chatgpt agent, etc. CS PhD @LTIatCMU

Adam.GPT

@TheRealAdamG

GTM at @OpenAI. Senior token slinger. A fan of NY sports, memes, tech & nice people. NJ. My opinions are my own.

Kevin Lu

@_kevinlu

Research @thinkymachines

Jimmy Apples 🍎/acc

@apples_jimmy

Wagmi. 2025. As featured in Bloomberg. As quoted by Nobel Prize winner Demis Hassabis. As mentioned on the Lex Fridman Podcast💺

Brandon McKinzie

@mckbrando

research @OpenAI | prev: multimodal @Apple, physics/cs @UCBerkeley

Hanie Sedghi

@HanieSedghi

Staff Research Scientist at Google DeepMind. Interested in the science of deep learning. Current focus: Pushing boundaries of LLMs capabilities

Jacob Austin

@jacobaustin132

I sometimes do AI research. I also play piano and climb. NYC. Previously @GoogleDeepMind, @Google Brain. Opinions my own

Shuchao Bi

@shuchaobi

Research at Meta Superintelligence Labs, RL/post-training/agents; Previously Research at OpenAI on multimodal and RL; Opinions are my own.

Junyang Lin

@JustinLin610

❤️ 🍵 ☕️ 🍷 🥃 🍺

Evan Morikawa

@E0M

🤖 @Generalistai. Prev: led eng at @openai. Launched & scaled ChatGPT, GPT-4, DALL·E, APIs. Dir Eng @Nylas, Co-Founder @Proximate, @OlinCollege alum.

Misha Laskin

@MishaLaskin

co-founder, ceo @reflection_ai

Erin Grant @ ICLR 2026

@ermgrant

Assistant Professor / Faculty Fellow @NYUDataScience studying cognition in mind & brain with neural nets, Bayes, other tools | http://bsky.app/profile/eringrant.me

heiner

@HeinrichKuttler

ex @xAI, @InflectionAI, @AIatMeta, @DeepMind, @Google, @LMU_Muenchen, PhD math-ph. Opinions my own. (Can be yours for a small fee.)

Alex Graveley

@alexgraveley

Co-creator Perplexity Computer, GitHub Copilot, Dropbox Paper. 2x CEO. Thruhiker. Survivor 🎗️

Ethan Caballero

@ethanCaballero

ML @Mila_Quebec ; previously @GoogleDeepMind

Lerrel Pinto

@LerrelPinto

Making robots more dexterous, robust and general. Co-founder of Assured Robot Intelligence (ARI)

Dan Roberts

@danintheory

Scientist @OpenAI. Prev. co-founder @diffeo, acquired by @salesforce // co-authored The Principles of Deep Learning Theory // studied gravity.

Yo Shavit

@yonashav

policy for v smart things @openai. Past: CS PhD @HarvardSEAS/@SchmidtFutures/@MIT_CSAIL. Tweets my own; on my head be it.

Steven Heidel

@stevenheidel

API @OpenAI | 🏳️‍🌈 he/him

Markus Wulfmeier

@m_wulfmeier

Chief Scientist #Nomagic - Prev. AI & Robotics @GoogleDeepMind @oxfordrobots @berkeley_ai @ETH @MIT - European @ELLISforEurope

Eugene Vinitsky 🦋

@EugeneVinitsky

This account only exists so no on else can occupy it. Please contact through other means. Lab website: http://emerge-lab.github.io

Denis Yarats

@denisyarats

Cofounder & CTO @perplexity_ai

Corey Lynch

@coreylynch

Director of AI at @figure_robot, building Helix 🧬

Peter Chen

@peterxichen

Building general purpose robotics at Amazon FAR. Previously Covariant CEO and Co-Founder, @OpenAI, @UCBerkeley PhD.

Amy Zhang

@yayitsamyzhang

ECE prof. at UT Austin. Works in state abstractions and generalization in RL. Recruiting PhD students for Fall 26.

Yash Patil

@ypatil125

Co-Founder, CEO @appliedcompute prev: @OpenAI, @Stanford

Sherry Yang

@sherryyangML

Staff Research Scientist @GoogleDeepMind; Assistant Professor @NYU_Courant. Previously Post-Doc @Stanford, PhD @UCBerkeley, M.Eng. / B.S. @MIT.

Jiaming Song

@baaadas

Chief Scientist @LumaLabsAI. #LumaDreamMachine

Tony Zhao

@tonyzzhao

Co-founder and CEO @sundayrobotics. Stanford PhD dropout, ex Deepmind, Tesla, GoogleX

Alexander Kirillov

@_alex_kirillov_

Multimodality @thinkymachines. Previously: post-training MM lead @openai, research Scientist @facebookai Projects: GPT-4o, Advance Voice Mode, SegmentAnything.

Laurens van der Maaten

@lvdmaaten

Member of Technical Staff at Anthropic. Ex-Meta. t-SNE. Llama 3. DenseNet. Web-scale weakly supervised vision. CrypTen.

Kory Mathewson

@korymath

@GoogleDeepMind working professional generative AI models -- getting great technology into the hands of great creative people

Pavel Izmailov

@Pavel_Izmailov

Researcher @AnthropicAI 🤖 Assistant Professor @nyuniversity 🏙️ Previously @OpenAI #StopWar 🇺🇦

Yaroslav Bulatov

@yaroslavvb

@southparkcommons (early OpenAI, Google Brain, Meta) https://yaroslavvb.substack.com/ https://medium.com/@yaroslavvb https://yaroslavvb.blogspot.com/

Songlin Yang

@SonglinYang4

pretraining @thinkymachines. Prev. PhD @MIT_CSAIL. she/her/hers

Roberta Raileanu

@robertarail

Open-Ended Team Lead and Senior Staff Research Scientist @GoogleDeepMind. Honorary Lecturer @UCL. ex @Meta | @NYU | @Princeton.

Simon Shaolei Du

@SimonShaoleiDu

Reasoning Chief Scientist @miromind_ai. Associate Professor @uwcse. Prev @xai. Postdoc @the_IAS. PhD in machine learning @mldcmu.

Rafael Rafailov @ NeurIPS

@rm_rafailov

I work on RL at @thinkymachines. Previously at @StanfordAILab @GoogleDeepMind @UCBerkeley

Simo Ryu

@cloneofsimo

I like cats, math and codes cloneofsimo@gmail.com

Kevin Liu

@kliu128

Interested in ai, systems, progress, living a good life

yobibyte

@y0b1byte

the only yobibyte @ NVIDIA

Rob Fergus

@rob_fergus

Director, AI Research and Head of FAIR at Meta

Olivier Grisel

@ogrisel

Engineer at @probabl_ai, scikit-learn developer. More active at: https://sigmoid.social/@ogrisel https://bsky.app/profile/ogrisel.bsky.social

Michael Chang

@mmmbchang

Amplify human creativity with Sora @openai Prev: Gemini and Project Astra @GoogleDeepMind, @LangChainAI, @MetaAI, @SchmidhuberAI PhD @berkeley_ai BS @MIT

Ross Wightman

@wightmanr

AI / Computer Vision. Ex head of Software, Firmware Engineering at a Canadian 🦄. Building AI systems or investing in startups that do it better.

Ross

@rpoo

Jack Parker-Holder

@jparkerholder

Co-lead of Genie 3 and World Models team lead @GoogleDeepMind, Honorary Associate Professor @UCL_DARK. Dad (🧒👶🐶), CFC fan, BJJ. Views are my own :)

Ted Xiao

@xiao_ted

Founding Member of Technical Staff at Project Prometheus. Previously Gemini, Robotics @GoogleDeepMind. Posts about frontier models, physical AGI, and scaling.

Konstantinos Bousmalis

@bousmalis

Research Scientist at DeepMind, working on robotic learning

alth0u🧶

@alth0u

general partner at a16z art is a line through your thoughts erstwhile child

Cas (Stephen Casper)

@StephenLCasper

AI safeguards & gov. research. PhD student @MIT_CSAIL (mnr. Public Policy), and Fellow at @BKCHarvard. Fmr. @AISecurityInst. https://stephencasper.com/

Jesse Mu

@jayelmnop

computational linguistics

Caglar Gulcehre

@caglarml

Scientist MAI, Prof @ EPFL, Ex-research scientist @ DeepMind, MSR, IBM Socials: https://bsky.app/profile/caglarai.bsky.social, http://mastodon.social/@caglarml

Siddharth Karamcheti

@siddkaramcheti

Incoming Assistant Professor @GeorgiaTech / @ICatGT / @GTrobotics. Prev: PhD from @StanfordAILab @stanfordnlp. I like robots, language, and people.

Fei Xia

@xf1280

Ex Research Scientist, TLM at @GoogleDeepMind, ✨♊, Gemini & Robotics, PhD from @StanfordAILab @StanfordSVL, previously @Tsinghua_Uni. #AGI through Embodiment

Andy Zeng

@andyzengineer

Building robot foundation models @GeneralistAI. Prev @GoogleDeepMind, PhD @Princeton. One experiment away from magic. ✗DMs → email

raulpuri.eth

@TheRealRPuri

AI @ hrooeu sjmrtPectPs | past: OpenAI - ChatGPT Multimodal, Her, 4o, GPT4V, 4, 3.5, Codex | NVIDIA - megatron, language | 🐻

Lihong Li

@LihongLi20

AI Research Scientist working on Reinforcement Learning, Large Language Models, and Recommendation Systems.

Toby Pohlen

@TobyPhln

Sleeping. Previously founding team @xAI, engineer @GoogleDeepMind. @RWTH alumnus.

Kevin Zakka

@kevin_zakka

phding @Berkeley_AI

Jacob Jackson

@jbfja

@cursor_ai, created https://same.energy, started @SupermavenAI and @Tabnine, formerly @OpenAI

Aleksandra Faust

@AleksandraFaust

Foundation Models & AI Agents for the Real World | AI Innovation from Inception to Societal Impact | @genesismolai • @GoogleDeepMind • @Waymo • @SandiaLabs

Bo Dai

@daibond_alpha

Assistant Professor at @gtcse, Research Scientist at @GoogleDeepMind | ex @googlebrain

Dave

@dece

Alex Rives

@alexrives

AI for scientific discovery. Head of Science, Biohub. Founder and scientific director of the ESM project.

Avital Oliver

@avitaloliver

Neural Network Plumber @OpenAI. Formerly Google Brain. Worked on http://github.com/google/flax. I used to think I'd become a math professor.

Pranav Shyam

@recurseparadox

research scientist at google deepmind. ಕನ್ನಡಿಗ. past: generative models @openai

Toby Shevlane

@tshevl

@_Mantic_AI cofounder & CEO, on a mission to solve forecasting. Prev: research scientist @GoogleDeepMind, PhD at @UniofOxford.

Brydon Eastman

@brhydon

🇨🇦 Mathematician (heavy on the ish) @thinkymachines Prev. MTS @OpenAI; PhD @WaterlooMath Certified wife guy, featured twice in Lego Magazine © ☕//🤔➡️💻

Jared Palmer

@jaredpalmer

VP CoreAI @Microsoft Previously, VP of AI @Vercel. Creator of @v0 and @aisdk. Founder of @Turborepo (acquired by Vercel)

Jay Hack

@mathemagic1an

Head 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

The 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).

David Shapiro (L/0)

@DaveShapi

Liberate humanity from drudgery.

Trapit Bansal

@TrapitBansal

AI Research @Meta TBD Lab | Previously @OpenAI co-creator of OpenAI o1 (thinking in LLM)

william

@wgussml

cofounder @ Project Prometheus, prev cofounder @generalagents, OpenAI, helped build copilot & MineRL, creator of ell

Hadi Salman

@hadisalmanX

Research Scientist @OpenAI Previously: PhD @MIT @MSFTResearch @UberATG @SCSatCMU @AUB_Lebanon

John Hallman

@johnohallman

Pretraining @OpenAI, sometimes RL/bio/health too

Thomas Dimson

@turtlesoupy

Technical Staff @OpenAI. Former CEO @illdotinc (acq. OpenAI). Authored “the algorithm” @Instagram. 🇨🇦. Purple monkey dishwasher.

Rylan Schaeffer

@RylanSchaeffer

AI RS @ Meta TBD. On-Leave from Stanford w/ @sanmikoyejo. Prev @ Gemini, Meta, MIT, Harvard, Uber, UCL, UC Davis

Ji Lin

@jilin_14

Research @Meta Superintelligence Lab | Prev: Research @OpenAI; PhD @MIT

Hao Liu

@haoliuhl

Sarah Shoker

@SarahShoker

Senior 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

Foundations at @OpenAI. PhD @NYUDataScience, @AiEleuther, 🇸🇬. Prev: @Google, @Microsoft

reah miyara

@reah_ai

building rl systems & model evals ex @openai, @googledeepmind, @ibmwatsonx, @nasajpl

nataliestaud

@nataliestaud

model behavior @OpenAI

Aliisa

@aliisarosenthal

former head of sales @openai, current investor @acrewcapital. fine-tuning two small models with @hodgessam.

Jason Wolfe

@w01fe

alignment and the model spec @OpenAI (opinions are my own)

Nitish

@StrongDuality

Michele Wang

@michelelwang

research @openai

Allison Tam

@allisontam_

research @OpenAI - prev @DeepMind

Suvansh Sanjeev

@SuvanshSanjeev

Research @OpenAI. ex-🤖 @berkeley_ai, @CMU_Robotics. Teamwork makes the dream work, and Dreamworks makes Shrek.

girish sastry

@girishsastry

AI & other things. I used to work at OpenAI on Policy Research.

Diane Yoon

@dorkydi

nervouscomputer

@nervouscomputer

iced latte in my veins