Psyho

Mark Chen

@markchen90

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

Alec Radford

@AlecRad

ML developer/researcher at OpenAI

Eric Jang

@ericjang11

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

Szymon Sidor

@sidorszymon

Building AGI one line of code at the time.

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.

Joanne Jang

@joannejang

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

Smerity

@Smerity

ML x society. Founding Member of Technical Staff at Project Prometheus. Prev @midjourney, @SFResearch, @CommonCrawl. @Harvard '14, @Sydney_Uni '11. 🇦🇺 in SF.

David Dohan

@dmdohan

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

Richard Ngo

@RichardMCNgo

natural philosopher

David Luan

@jluan

retired!! former cofounder of @adeptailabs, vp engineering @openai and @amazon, and @google LLMs lead. all about type II fun.

will depue

@willdepue

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

Scott Gray

@scottgray76

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

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

Christine McLeavey

@mcleavey

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

Ted Sanders

@sandersted

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

Tao Xu

@txhf

Learning Machine at OpenAI

Feryal

@FeryalMP

Staff Research Scientist @DeepMind, Self-improvement in Gemini ♊️

Caitlin Kalinowski

@kalinowski007

Building the physical future of AI. Boards: Axon, Institute of Contemporary Art SF.

Johannes Heidecke

@JoHeidecke

Safety Systems @ OpenAI

Nick Frosst

@nickfrosst

cofounder @cohere - singer @goodkidband

Ajay Jain

@ajayj_

Co-founder @genmoai. Co-created denoising diffusion (DDPM), DreamFusion, Dream Fields. Ex Ph.D. @berkeley_ai, @googleai, @facebookai, @nvidiaai, @mit

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

Drew Houston

@drewhouston

Founder/CEO of Dropbox · Board of directors at Meta

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

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💺

Andrew Carr 🤸

@andrew_n_carr

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

Teortaxes▶️ (DeepSeek 推特🐋铁粉 2023 – ∞)

@teortaxesTex

We're in a race. It's not USA vs China but humans and AGIs vs ape power centralization. @deepseek_ai stan #1, 2023–Deep Time «C’est la guerre.» ®1

Matei Zaharia

@matei_zaharia

CTO @Databricks and prof @UCBerkeley. Working on data + AI, @ApacheSpark, @DeltaLakeOSS, @MLflow, @DSPyOSS, @GEPA_ai. http://linkedin.com/in/mateizaharia

Ryan Petersen

@typesfast

Founder and CEO of Flexport: Global logistics, simplified.

Kory Mathewson

@korymath

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

Anjney Midha

@AnjneyMidha

founder @amppublic

Reiichiro Nakano

@reiinakano

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

Simo Ryu

@cloneofsimo

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

Brendan O'Donoghue

@bodonoghue85

Director of Research at @GoogleDeepMind, working on generative models, deep learning, RL. PhD from @stanford. Gemini Diffusion lead.

Ross

@rpoo

Konstantinos Bousmalis

@bousmalis

Research Scientist at DeepMind, working on robotic learning

Neal Wu

@neal_wu

@thinkymachines, prev new stealth co, @cognition, @tryramp, @GoogleBrain, competitive programming

Toby Pohlen

@TobyPhln

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

Jacob Jackson

@jbfja

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

Marco Mascorro

@Mascobot

rewarding compounding curiosity | roboticist | Prev: Partner @a16z, cofounder @Fellow_AI

Ross Taylor

@rosstaylor90

Co-founder and CEO @GenReasoning. Previously lots of other things like: reasoning lead Meta AI, Llama 3/2, Galactica, Papers with Code.

Georges Harik

@gharik

humans& co-founder, 7th employee google, co-created adwords online, co-created adsense targeting, worked on ai, gmail, calendar, bought android.

Trenton Bricken

@TrentonBricken

Trying to make AI go well @AnthropicAI

Piotr Mirowski @bsky.social

@MirowskiPiotr

Research scientist in machine learning @DeepMind. Ex-@BellLabs/@Microsoft/PhD@NYU. Work in AI for weather and for artistic creativity. he/him. Account inactive.

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.

Peter J. Liu

@peterjliu

Building @getcompoundai (hiring: http://twentylabs.ai/careers). Was Research Scientist @ Google Brain / DeepMind, language model research. 🇨🇦🇺🇸

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

Vedant Misra

@vedantmisra

ASI @DeepMind | @OpenAI (Reasoning / Algorithms Lead) | @HubSpot (ML Labs) | Founder/CEO Kemvi (acq HubSpot) | Physics @Columbia | Husband and Dad

Mostafa Rohaninejad

@MostafaRohani

RL Researcher @ 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.

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

girish sastry

@girishsastry

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

Łukasz Kondraciuk

@lukasz_kondr

Strawberry training infra lead @ OpenAI prev: CS at University of Warsaw, ACM ICPC 2022 silver medalist

Shantanu Jain

@hauntsaninja

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

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

Maja Trebacz

@majatrebacz

Daniel Ziegler

@d_m_ziegler

Alignment Stress-Testing @ Anthropic