Tifa Chen

Noam Brown

@polynoamial

Researching reasoning @OpenAI | Co-created Libratus/Pluribus superhuman poker AIs, CICERO Diplomacy AI, and OpenAI o3 / o1 / 🍓 reasoning models

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

Luke Metz

@Luke_Metz

OpenAI Previously: Thinking Machines, Google Brain

Aleksander Madry

@aleks_madry

OpenAI and MIT faculty (on leave)

Jack Rae

@jack_w_rae

Distinguished Scientist @ Meta LLMs (e.g. Gopher, Chinchilla, Gemini, Muse) Compression & RL ☯️ Past: Google, OpenAI, Quora

Jason Kwon

@jasonkwon

CSO @openai

Aidan Clark

@_aidan_clark_

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

Boaz Barak

@boazbaraktcs

Computer Scientist. See also http://windowsontheory.org . @harvard @openai opinions my own.

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 🧠

Karina

@karinanguyen

building @thoughtfullab, prev. AI research & product @OpenAI, @AnthropicAI, @maisonagi (side proj)

Aditya Ramesh

@model_mechanic

VP Robotics @OpenAI

will depue

@willdepue

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

Eric Wallace

@Eric_Wallace_

research @openai

augustus odena

@gstsdn

Something new. Previously: AI research at TBD Labs / Meta; cofounder at @AdeptAILabs; Invented Scratchpad / Chain-of-Thought; Google Brain

Boris Power

@BorisMPower

Head of Applied Research @OpenAI

Yang Song

@DrYangSong

Research Principal of MSL

Bill Peebles

@billpeeb

head of sora @openai 🇺🇸🇺🇸🇺🇸

Aidan McLaughlin

@aidan_mclau

research scientist @openai

Tejal Patwardhan

@tejalpatwardhan

research @openai // pain is the moat

Hongyu Ren

@ren_hongyu

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

Isa Fulford

@isafulf

research @openai

Arvind Neelakantan

@arvind_io

Research Scientist, @GoogleDeepMind Past: @AIatMeta , @OpenAI, @Google Brain PhD @UMassAmherst

Daniel Levy

@daniellevy__

cofounder at @ssi

Rohan Pandey

@khoomeik

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

Alexander Wei

@alexwei_

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

Eric

@ericmitchellai

chatgpt posttraining @openai. building personal agi. I like ai and music and some other stuff

Yann Dubois

@yanndubs

Posttraining @OpenAI | PhD @StanfordAILab

Ted Sanders

@sandersted

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

Johannes Heidecke

@JoHeidecke

Safety Systems @ OpenAI

Kai

@kaicathyc

Occasionally here. Currently research @OpenAI.

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

Nick Turley

@nickaturley

vp & head of @chatgptapp

Yu Bai

@yubai01

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

Adam.GPT

@TheRealAdamG

Forward Deployed 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💺

Brandon McKinzie

@mckbrando

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

James Campbell

@jam3scampbell

post training @OpenAI

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

Alexey Guzey

@alexeyguzey

http://guzey.com, http://newscience.org, @openai; in pursuit of a just, beautiful future.

Steven Heidel

@stevenheidel

API @OpenAI | 🏳️‍🌈 he/him

Yash Patil

@ypatil125

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

Jiaming Song

@baaadas

Chief Scientist @LumaLabsAI. #LumaDreamMachine

Ryan Petersen

@typesfast

Founder and CEO of Flexport. Tariff whisperer

Alexander Kirillov

@_alex_kirillov_

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

Jong Wook Kim 💟

@_jongwook_kim

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

Adrien Ecoffet

@AdrienLE

Trying to make AGI go well. Researcher at @openai. Views my own.

Angela Jiang

@jiangelaa

AI-maxxing @worktrace_ai 🩷 | Prev. Public Policy & Product @OpenAI, CS PhD @CarnegieMellon

Anjney Midha

@AnjneyMidha

founder @amppublic

Chenlin Meng

@chenlin_meng

Co-founder & CTO @pika_labs | ex @StanfordAILab @Stanford | Hiring: Head of Engineering and Senior Engineer

Reiichiro Nakano

@reiinakano

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

Simo Ryu

@cloneofsimo

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

Kevin Liu

@kliu128

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

Quanquan Gu

@QuanquanGu

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

David Schnurr

@_dschnurr

engineer @openai

Steven Hansen

@Zergylord

Gemini Agents lead at Google DeepMind.

Dave

@dece

Cheng Lu

@clu_cheng

Research @Meta MSL TBD Lab. Previously pretraining & multimodal @OpenAI. PhD @Tsinghua_Uni. Interested in scalable machine learning.

Andrew Critch (🤖🩺🚀)

@AndrewCritchPhD

CEO @ http://theMultiplicity.ai/. AI Researcher @ Berkeley. Views my own. I also post my favorite healthy+tasty foods for free.

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).

Sam Whitmore

@sjwhitmore

eng at @cursor_ai. not a cat (or a man) in real life. I like to run a lot! @newcomputer @kensho @harvard @StuyNY

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

Li JING

@jingli9111

scaling world models @amilabs, previously @openai

Lindsay McCallum Rémy

@lindsmccallum

comms @openai // previously @headlinevc @twitter 1.0 @publicisgroupe paris // very online

John Hallman

@johnohallman

Post-training @OpenAI, previously pre-training/bio

Ji Lin

@jilin_14

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

Simón

@simonpfish

beep boop

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

Josh McGrath

@j_mcgraph

search post training @ openai

ilge

@ilge

Researcher @OpenAI | there is as yet insufficient data for a meaningful answer.

Andre Saraiva

@andresnds

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

Allison Tam

@allisontam_

research @OpenAI - prev @DeepMind

Ashvin Nair

@ashvinair

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

Wenda Zhou

@zhouwenda

OpenAI

filipe

@filipeabperes

seeking scientific speedups @OpenAI

nervouscomputer

@nervouscomputer

iced latte in my veins