Brydon Eastman

Mira Murati

@miramurati

Now building @thinkymachines. Previously CTO @OpenAI

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 🧠

Alexandr Wang

@alexandr_wang

chief ai officer @meta, founder @scale_ai. rational in the fullness of time

Liam Fedus

@LiamFedus

Building industrial-scale science at @periodiclabs Past: VP of Post-Training @OpenAI; Google Brain

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

Jason Kwon

@jasonkwon

CSO @openai

Dustin Tran

@dustinvtran

post-training lead at xAI. ex-google

Bob McGrew

@bobmcgrewai

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

Sholto Douglas

@_sholtodouglas

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

Boaz Barak

@boazbaraktcs

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

Leopold Aschenbrenner

@leopoldasch

http://situational-awareness.ai

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

Aäron van den Oord

@avdnoord

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

Riley Goodside

@goodside

Screenshots from the jagged frontier. Formerly: Google DeepMind, Scale.

Richard Ngo

@RichardMCNgo

natural philosopher

Ashish Vaswani

@ashVaswani

Horace He

@cHHillee

@thinkymachines Formerly @PyTorch "My learning style is Horace twitter threads" - @typedfemale

Emmett Shear

@eshear

CEO of Softmax: Applied developmental cybernetics research

Karina

@karinanguyen

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

will depue

@willdepue

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

Shengjia Zhao

@shengjia_zhao

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

Eric Wallace

@Eric_Wallace_

research @openai

swyx 🇸🇬

@swyx

achieve ambition with intentionality, intensity, integrity & insanity. affiliations: - @dxtipshq - @cognition - @temporalio - @aidotengineer - @latentspacepod

Danqi Chen

@danqi_chen

Associate professor @princetonPLI @PrincetonCS MoTS @thinkymachines Previously: @facebookai, @stanfordnlp, @Tsinghua_Uni

Matt Brockman

@badphilosopher

playing in the sand

Hyung Won Chung

@hwchung27

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

Aidan McLaughlin

@aidan_mclau

research scientist @openai

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

Arvind Neelakantan

@arvind_io

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

Sebastian Raschka

@rasbt

ML/AI research engineer. Ex stats professor. Author of "Build a Large Language Model From Scratch" (https://amzn.to/4fqvn0D) & reasoning (https://mng.bz/lZ5B)

Rohan Pandey

@khoomeik

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

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)

Stephen Roller

@stephenroller

MoTS @thinkymachines. previously pre-training @googledeepmind, @character_ai, and @aiatmeta.

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

Stephen McAleer

@McaleerStephen

AI researcher at Anthropic

Caitlin Kalinowski

@kalinowski007

Builder-strategist in physical AI. Boards: Axon, Institute of Contemporary Art SF.

christina kim

@christinahkim

researcher @openai

Dimitris Papailiopoulos

@DimitrisPapail

Researcher @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

Pre-Training Researcher @OpenAI, previously: RL/post-training @OpenAI, Postdoc at UC Berkeley @berkeley_ai, Researcher at Google Brain, PhD in CS @CILVRatNYU

Sherwin Wu

@sherwinwu

@OpenAI

Stephanie Chan

@scychan_brains

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

Nick Turley

@nickaturley

vp & head of @chatgptapp

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

Forward Deployed 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

Shuchao Bi

@shuchaobi

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

Josh Tobin

@josh_tobin_

agents @openai

Shunyu Yao

@ShunyuYao12

Language agents

Alex Graveley

@alexgraveley

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

Steven Heidel

@stevenheidel

API @OpenAI | 🏳️‍🌈 he/him

Peter Chen

@peterxichen

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

Yash Patil

@ypatil125

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

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

Songlin Yang

@SonglinYang4

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

Alexia Jolicoeur-Martineau

@jm_alexia

AI Researcher 🐱‍💻 2025 ARC Prize Winner I build generative AI for images, videos, text, tabular data, weights, molecules, and video games.

Reiichiro Nakano

@reiinakano

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

Rafael Rafailov @ NeurIPS

@rm_rafailov

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

Kevin Liu

@kliu128

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

Jeremy Bernstein

@jxbz

🧪 @thinkymachines ✍️ anon feedback @ http://admonymous.co/jxbz

Austen Allred

@Austen

Founder http://GauntletAI.com: Free AI training for the smartest engineers. Will tweet as I wish and suffer the consequences. Accelerando: @kellyclaudeai

Gretchen Krueger

@GretchenMarina

Over at Bluesky. Researcher affiliated w @BKCHarvard, Volunteer @evitable. Previously @openai @ainowinstitute. Views mine. #justdontbuildagi #talktomenotchatgpt

Devendra Chaplot

@dchaplot

Building superintelligence @xai

Michelle Pokrass

@michpokrass

shipping at openai

alth0u🧶

@alth0u

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

Casey Chu

@caseychu9

Researcher at @openai

Miles Wang

@MilesKWang

Researcher @OpenAI

rahul

@0interestrates

ceo @JuliusAI | we're hiring engineers: https://julius.ai/careers

David Schnurr

@_dschnurr

engineer @openai

will brown

@willccbb

reward hacking @primeintellect

Marco Mascorro

@Mascobot

Researching LLMs | Roboticist | Prev: Partner @a16z (inv: @cursor_ai, @thinkymachines, @bfl_ml, @WaveFormsAI, @deeptuneai, etc), cofounder @Fellow_AI

Dave

@dece

Cheng Lu

@clu_cheng

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

Lama Ahmad لمى احمد

@_lamaahmad

@OpenAI. views my own.

Ben Hamner

@benhamner

Sumble co-founder and CTO. Learning high-quality, structured data about the world. Formerly @kaggle

Chubby♨️

@kimmonismus

Dream realized! Turned my love for AI into a career - sharing daily. Get my newsletter (225k+ subs): 🔗 https://linktr.ee/kimmonismus //📧 kim@getsuperintel.com

Taelin

@VictorTaelin

Kind / Bend / HVM / INets / λCalculus

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.

Kylie Robison

@kyliebytes

take it easy dude, but take it • writing @corememory • robison (rah-beh-son) not robinson • signal @ kylie.111

Thomas Dimson

@turtlesoupy

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

fouad

@fouadmatin

@openai codex, cyber, research, security

Ryan Greene

@rabrg

ex @OpenAI

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

Jonathan Lachman

@jonlachman

founding head of operations @thinkymachines // prev: head of special projects @openai, obama @whitehouse national security budget director

Josh McGrath

@j_mcgraph

search post training @ openai

Aliisa

@aliisarosenthal

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

ilge

@ilge

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

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

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

girish sastry

@girishsastry

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

Tyna Eloundou

@ThankYourNiceAI

Rohan Nuttall

@rohancalum

@openai

Diane Yoon

@dorkydi

nervouscomputer

@nervouscomputer

iced latte in my veins