BIO
Deep RL research @openai
Sam Altman
@sama
AI is cool i guess
John Schulman
@johnschulman2
Recently started @thinkymachines. Interested in reinforcement learning, alignment, birds, jazz music
Jan Leike
@janleike
AI research @AnthropicAI. Previously OpenAI & DeepMind. Optimizing for a post-AGI future where humanity flourishes. Opinions aren't my employer's.
Noam Brown
@polynoamial
Researching reasoning @OpenAI | Co-created Libratus/Pluribus superhuman poker AIs, CICERO Diplomacy AI, and OpenAI o-series 🍓 reasoning models
Mira Murati
@miramurati
Now building @thinkymachines. Previously CTO @OpenAI
Jason Wei
@_jasonwei
ai researcher @meta superintelligence labs, past: openai, google 🧠
Tim Rocktäschel
@_rockt
Teaching AI the joy of invention at @Recursive_SI, Professor of AI @AI_UCL, PI @BOLD_Lab_AI, Fellow @ELLISforEurope. Ex @GoogleDeepMind @AIatMeta @CompSciOxford
Mark Chen
@markchen90
Chief Research Officer at @OpenAI. Coach for the USA IOI Team.
Barret Zoph
@barret_zoph
@openai Past: - CTO & Co-Founder Thinking Machines Lab (@thinkymachines) - VP Research (Post-Training) @openai - Research Scientist at Google Brain
Matthew Johnson
@SingularMattrix
Researcher at Google Brain. I work on JAX (https://github.com/google/jax).
Sebastien Bubeck
@SebastienBubeck
I work on AI at OpenAI. Former VP AI and Distinguished Scientist at Microsoft.
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
Luke Metz
@Luke_Metz
OpenAI Previously: Thinking Machines, Google Brain
Joshua Achiam
@jachiam0
Freedom, flourishing, and abundance. Wrapping up after nine years @openai. Main author of http://spinningup.openai.com
Bob McGrew
@bobmcgrewai
Learning new things. Former Chief Research Officer at OpenAI, early exec at Palantir, early employee at Paypal.
Yang Song
@DrYangSong
Research Principal of MSL
Eric Zelikman
@ericzelikman
cofounder & ceo @humansand - building ai for humans // was lgtm-ing @xAI, phd-ing @stanford
David Dohan
@dmdohan
reducing perplexity @openai | past: probabilistic programs, proteins, science & reasoning @ google brain 🧠
Peter Welinder
@npew
Devices @OpenAI
Dylan HadfieldMenell
@dhadfieldmenell
Associate Prof @MITEECS working on value (mis)alignment in AI systems; Safety & Alignment Advisor at http://Character.AI; @dhadfieldmenell@bsky.social; he/him
Irwan Bello
@IrwanBello
Supercomputers & Friends, AI & Science. Past: Founding team & Research Lead at @reflection_ai, @OpenAI, Founding team @character_ai, Google Brain
Shunyu Yao
@ShunyuYao12
Language agents
David Luan
@jluan
retired!! former cofounder of @adeptailabs, vp engineering @openai and @amazon, and @google LLMs lead. all about type II fun.
Gabriel Synnaeve
@syhw
Nerd & Dad. RL & CodeGen research since before it was cool.
will depue
@willdepue
dei ex machina
rapha
@rapha_gl
making models programmable @ openai
Alex Graveley
@alexgraveley
Co-creator Perplexity Computer, GitHub Copilot, Dropbox Paper. 2x CEO. Thruhiker. Survivor 🎗️
Anjney Midha
@AnjneyMidha
founder @amppublic • visiting scientist @stanford • teaching @cs153systems • alignment has always been the moat.
Patrick Hsu
@pdhsu
@ArcInstitute co-founder, @Stanford professor, @ThriveCapital investor | biology and ML research | 🇨🇦 prev @harvard @broadinstitute, Fast Grants
Roberta Raileanu
@robertarail
Open-Endedness Team Lead and Senior Staff Research Scientist @GoogleDeepMind. Honorary Associate Professor @bold_lab_ai. ex @Meta | @NYU | @Princeton.
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.
Andrew Carr 🤸
@andrew_n_carr
co-founder leading science @getcartwheel co-founder advisor @arcade_ai Past: Codex @OpenAI, Brain @GoogleAI, world ranked Tetris player
Rylan Schaeffer
@RylanSchaeffer
Creating something new. Ex-Meta TBD. On-Leave from Stanford w/ @sanmikoyejo. Prev @ Gemini, MIT, Harvard, Uber, UCL, UC Davis
Yu Bai
@yubai01
Training Accelerations @OpenAI. Previously @SFResearch, PhD @Stanford.
Zhiqing Sun
@EdwardSun0909
Lead agent research @Meta MSL TBD Lab. previously posttraining/agent research @OpenAI. CS PhD @LTIatCMU
Hongyu Ren
@ren_hongyu
research @meta superintelligence. CS PhD @stanford. prev @openai.
Scott Gray
@scottgray76
GPU Geek at @OpenAI. I have a long standing interest in neuroscience and its application to machine learning. He/Him.
Isa Fulford
@isafulf
research @openai
Chelsea Sierra Voss
@csvoss
"my wife is cool i guess" –@martinshkreli // member of technical staff @openai // board $QCLS // prev @pilothq @sendwaveapp @khanacademy @MIT, 2x IBO
Yao Fu
@Francis_YAO_
Prev. Grok 4.5 pretraining scaling @xAI; Gemini 3 perception and project Astra @GoogleDeepMind
Gabriel Ilharco
@gabriel_ilharco
AI Research Scientist
Jiahui Yu
@jhyuxm
Lead Multimodal @Meta Superintelligence Lab. Previously led Perception @OpenAI; co-led Gemini Multimodal @GoogleDeepMind.
Kenneth Stanley
@kenneth0stanley
SVP of Open-Endedness @LilaSciences. Prev: Maven CEO, Lead@OpenAI, Uber AI, prof@UCF. NEAT,HyperNEAT,novelty search, POET. Book:Why Greatness Cannot Be Planned
Markus Wulfmeier
@m_wulfmeier
Mastery-first Physical AI @NomagicAI - Prev. AI & Robotics @GoogleDeepMind - @UniOfOxford @UCBerkeley @ETH @MIT - European @ELLISforEurope
Marco Mascorro @ ICML
@Mascobot
Researching LLMs | Roboticist | Prev: Partner @a16z (inv @cursor_ai, @thinkymachines, @bfl_ml, etc), cofounded Fellow Robots, @singularityu, @BMW Research
Gabriel Goh
@gabeeegoooh
Images {1,1.5,2} Lead, among other things.
Alex Nichol
@unixpickle
Code, AI, and 3D printing. Opinions are mostly my own, sometimes a computer's. Husband of @thesamnichol. Co-creator of DALL-E 2. Researcher @openai.
Tao Xu
@txhf
Learning Machine at OpenAI
Evan Morikawa
@E0M
VPE @Generalistai. GP ZSF. Prev: led eng at @openai. Launched & scaled ChatGPT, & APIs. @OlinCollege alum.
Jacob Austin
@jacobaustin132
I sometimes do AI research. I also play piano and climb. NYC. Previously @GoogleDeepMind, @Google Brain. Opinions my own