hunter

Mark Chen

@markchen90

Chief Research Officer at @OpenAI. Coach for the USA IOI Team.

Mira Murati

@miramurati

Now building @thinkymachines. Previously CTO @OpenAI

Sebastien Bubeck

@SebastienBubeck

I work on AI at OpenAI. Former VP AI and Distinguished Scientist at Microsoft.

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 🧠

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

Bob McGrew

@bobmcgrewai

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

Aidan Clark

@_aidan_clark_

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

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.

sarah guo

@saranormous

startup investor/helper, founder @conviction. accelerating AI adoption, interested in progress. tech podcast: @nopriorspod

Nat McAleese

@__nmca__

Research @AnthropicAI. Previously @OpenAI, @DeepMind. Views my own.

will depue

@willdepue

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

kipply

@kipperrii

"uncanny ability to be mentioned in every slack thread about code that's mysteriously breaking" - claude

rapha

@rapha_gl

making models programmable @ openai

Eric Wallace

@Eric_Wallace_

research @openai

Mo Bavarian

@mobav0

Scaling up RL at OpenAI 🍓 Optimization and long context research before. Math PhD, MIT.

Bill Peebles

@billpeeb

head of sora @openai 🇺🇸🇺🇸🇺🇸

Gabriel Synnaeve

@syhw

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

Hyung Won Chung

@hwchung27

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

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

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

Alexander Wei

@alexwei_

Reasoning @OpenAI. Co-built CICERO @MetaAI | @Berkeley_AI PhD '23 | @Harvard '20

Rowan Zellers

@rown

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

Christine McLeavey

@mcleavey

@openai audio team: gpt-4o, jukebox & musenet

Yann Dubois

@yanndubs

Posttraining @OpenAI | PhD @StanfordAILab

Ted Sanders

@sandersted

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

Tao Xu

@txhf

Learning Machine at OpenAI

Sam Schoenholz

@sschoenholz

@openai previously: @thinkymachines, google brain.

Ilya Kostrikov

@ikostrikov

Pre-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

I draw smileyball http://instagram.com/smiley._.ball Writing organic artisanal handcrafted code @OpenAI Previously doing the same @Stanford

Patrick Hsu

@pdhsu

@ArcInstitute co-founder, @BerkeleyBioE professor, @ThriveCapital investor | biology and ML research | 🇨🇦 prev @harvard @broadinstitute, Fast Grants

Yu Bai

@yubai01

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

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.

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💺

Ariel Herbert-Voss

@adversariel

Founder @RunSybil. likes: offsec, LLMs, and dumb memes. prev: research scientist @OpenAI / CS PhD @Harvard / @defcon AI Village

Brandon McKinzie

@mckbrando

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

Clive Chan

@itsclivetime

perplexity per picojoule @openai / prev @tesla

Shuchao Bi

@shuchaobi

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

Andrew Carr 🤸

@andrew_n_carr

co-founder leading science @getcartwheel co-founder advisor @arcade_ai Past: Codex @OpenAI, Brain @GoogleAI, world ranked Tetris player

Alex Graveley

@alexgraveley

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

Dan Roberts

@danintheory

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

Steven Heidel

@stevenheidel

API @OpenAI | 🏳️‍🌈 he/him

Yash Patil

@ypatil125

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

Laurens van der Maaten

@lvdmaaten

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

Jong Wook Kim 💟

@_jongwook_kim

Member of Technical Staff @OpenAI; previously at @nyuMARL, @SpotifyResearch, @pandoramusic, @kakaocorpglobal, and @NCSOFT

Anjney Midha

@AnjneyMidha

founder @amppublic

Reiichiro Nakano

@reiinakano

i like building awesome things with awesome people 🇵🇭 🇯🇵

Michelle Pokrass

@michpokrass

shipping at openai

Quanquan Gu

@QuanquanGu

Professor @UCLA, Pretraining and Scaling at ByteDance Seed | Recent work: Seed2.0, SeedFold | Opinions are my own

alth0u🧶

@alth0u

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

Ruoming Pang

@ruomingpang

Daniel Litt

@littmath

Assistant professor (of mathematics) at the University of Toronto. "Tireless math ronin." Algebraic geometry, number theory, etc. He/him.

Casey Chu

@caseychu9

Researcher at @openai

Miles Wang

@MilesKWang

Researcher @OpenAI

will brown

@willccbb

reward hacking @primeintellect

rachel lim

@_rlys

eng, aesthete, bookreader. building things @openai

Tim Zaman

@timzaman

Frontier Clusters at OpenAI. Formerly DeepMind, Tesla AI, X, NVIDIA.

Alex Rives

@alexrives

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

Sarah Catanzaro

@sarahcat21

“All methods are sacred if they are internally necessary” (GP @amplifypartners, prev @canvasvc; Head of Data @Mattermark; @palantirtech; @c4ads)

shyamal

@shyamalanadkat

applied AI. prev @openai @dukeu. explorer. 🇮🇳

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

Stephanie Zhan

@stephzhan

GP @Sequoia, investing in AI, from company formation. 1st partner to @linear @mach_industries @middeskhq @reflection_ai @ricursiveai @skildai @tavus

Brydon Eastman

@brhydon

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

Dan Shipper 📧

@danshipper

ceo @every | the only subscription you need to stay at the edge of AI

Ryo Lu

@ryolu_

Design @Cursor_ai. Early @NotionHQ, @Stripe, built startups. I make a world where anyone can make software. Aspiring k-pop idol.

David Shor

@davidshor

Head of Data Science at Blue Rose Research, based in NYC, originally from Miami. I try to elect Democrats. Views are my own. he/him🌹

Sonya Huang 🐥

@sonyatweetybird

Partner @Sequoia

Zhuohan Li

@zhuohan123

building @vllm_project at @meta | ex-openai | cs phd @ 🌁 uc berkeley | machine learning system | the real agi is the friends we made along the way

Phil Chen

@philhchen

Building something new. Previously research @openai @GoogleDeepMind @scale_AI @Stanford

John Hallman

@johnohallman

Pretraining @OpenAI, sometimes RL/bio/health too

Rylan Schaeffer

@RylanSchaeffer

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

Jeffrey Wang

@jeffreygwang

Researcher @OpenAI, working on pretraining & reasoning. Previously (and perhaps again) CS/Math/English @Harvard.

Jason Phang

@zhansheng

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

Jason Wolfe

@w01fe

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

Hugh Zhang

@hughbzhang

Nitish

@StrongDuality

Michele Wang

@michelelwang

research @openai

Andre Saraiva

@andresnds

o1-preview, o1-mini, o1, o3-mini,o4-mini, o3... Reasoning Researcher at OpenAI. Ex-DeepMind.

Neil Chowdhury

@ChowdhuryNeil

@TransluceAI, previously @OpenAI

Ashvin Nair

@ashvinair

RL foundations @cursor_ai. Prev: o1, o3, Code Interpreter @openai, 9 years learning to poke by poking at UC Berkeley

filipe

@filipeabperes

seeking scientific speedups @OpenAI

Suvansh Sanjeev

@SuvanshSanjeev

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

Rohan Nuttall

@rohancalum

@openai

Shantanu Jain

@hauntsaninja

@OpenAI. CPython core dev, making Python typing better https://hauntsaninja.github.io awesome in every mausam.

Lorenz Kuhn

@_lorenzkuhn

Reasoning Research @OpenAI | o1-preview through o3

Diane Yoon

@dorkydi

Jonathan Raiman

@jonathanrraiman

❤️ training deep nets :) AI research on large generative models, RL, OpenAI Five @openai and PrefixRL @Nvidia Hopper co-creator

nervouscomputer

@nervouscomputer

iced latte in my veins