Bowen Baker

David Duvenaud

@DavidDuvenaud

Machine learning prof @UofT. Former team lead at Anthropic. Working on generative models, inference, & latent structure.

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

Barret Zoph

@barret_zoph

VP Research GoogleDeepmind Past: - VP & GM Enterprise (@openai) - CTO & Co-Founder TML (@thinkymachines) - VP Research (Post-Training) @openai

Liam Fedus

@LiamFedus

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

Logan Kilpatrick

@OfficialLoganK

Member of technical staff, working on Gemini, @GoogleAIStudio, the Gemini API, & Kaggle. My views!

Eric Wallace

@Eric_Wallace_

research @openai

Jason Weston

@jaseweston

Senior Director & RS @Meta + Visiting Prof NYU | OG in LLMs | Pretrain+Finetune in 2008+ | 155k+ citations | Current: Self-Improving & Co-Improving AI

Ethan Perez

@EthanJPerez

Alignment team lead at Anthropic

Luke Metz

@Luke_Metz

Meta Previously: Thinking Machines, OpenAI, Google Brain

Boaz Barak

@boazbaraktcs

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

Dylan Patel

@dylan522p

SemiAnalysis AI Infrastructure Research and Consulting DMs are open for consulting, quotes, or to talk shop, Opinions my own

Catherine Olsson

@catherineols

Hanging out with Claude, improving its behavior, and building tools to support that @AnthropicAI 😁 prev: @open_phil @googlebrain @openai (@microcovid)

Leopold Aschenbrenner

@leopoldasch

http://situational-awareness.ai

Riley Goodside

@goodside

Mostly screenshots of chatbots since 2022. Formerly: Google DeepMind, Scale.

Bob McGrew

@bobmcgrewai

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

Jakub Pachocki

@merettm

OpenAI

Neel Nanda

@NeelNanda5

Mechanistic Interpretability lead DeepMind. Formerly @AnthropicAI, independent. In this to reduce AI X-risk. Neural networks can be understood, let's go do it!

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

Simon Shaolei Du

@SimonShaoleiDu

Lead Scientist for Reasoning Models & Training at @Apodex_AI. Associate Professor @uwcse. Prev @xai. Postdoc @the_IAS. PhD in machine learning @mldcmu.

will depue

@willdepue

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

rapha

@rapha_gl

research lead @ openai

Pavel Izmailov

@Pavel_Izmailov

Researcher @AnthropicAI 🤖 Assistant Professor @nyuniversity 🏙️ Previously @OpenAI #StopWar 🇺🇦

Stephen McAleer

@McaleerStephen

AI researcher at Anthropic

kipply

@kipperrii

"drop the forest nymph act we know how much gdp you generate" - max novendstern

Scott Gray

@scottgray76

Currently independent. Exploring some neuro-inspired AI approaches. Former GPU geek at @OpenAI. He/Him.

Sarah Wiegreffe

@sarahwiegreffe

Research in NLP & trustworthy ML (mostly interpretability). Trying to make LMs more transparent, reliable, & safe. Assistant prof @umdcs @clipumd Views my own.

Yu Bai

@yubai01

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

James Campbell

@jam3scampbell

post training @OpenAI

Zhiqing Sun

@EdwardSun0909

Lead agent research @Meta MSL TBD Lab. previously posttraining/agent research @OpenAI. CS PhD @LTIatCMU

Cas (Stephen Casper)

@StephenLCasper

Computer scientist working on AI safeguards, incidents, & gov research. Assistant professor @Kennedy_School @Harvard. https://stephencasper.com/

Chelsea Sierra Voss

@csvoss

engineeress ✨ member of technical staff @openai // ilu @martinshkreli // prev @pilothq, @sendwaveapp, @khanacademy, @MIT, IOL, 2x IBO

Sherjil Ozair

@sherjilozair

prometheus | founder @GeneralAgentsCo | previously autopilot @tesla, deep learning @googledeepmind, phd http://mila.quebec, cs @iitdelhi

Yao Fu

@Francis_YAO_

Prev. Grok 4.5/4.6 pretraining scaling @xAI; Gemini 3 perception and project Astra @GoogleDeepMind

Gabriel Ilharco

@gabriel_ilharco

AI Research Scientist

Ajeya Cotra

@ajeya_cotra

Helping the world prepare for powerful AI. Risk assessment @METR_evals (opinions my own). Blogs: Planned Obsolescence (AI), Good Bones (whatever's on my mind).

Yo Shavit

@yonashav

ai resilience @foundationOAI. Past: @openai / @HarvardSEAS / @SchmidtFutures / @MIT_CSAIL. Tweets my own; on my head be it.

elvis

@omarsar0

Building @dair_ai • Prev: Meta AI | PaperswithCode | Elastic | PhD • Learn Harness Engineering: https://academy.dair.ai/papers/collections/harness-engineering

Marco Mascorro

@Mascobot

Researching LLMs | Roboticist | Prev: Partner @a16z (inv @cursor_ai, @thinkymachines, @bfl_ml, etc), cofounded Fellow Robots, @BMW Research

Tejal Patwardhan

@tejalpatwardhan

research @openai // pain is the moat opinions are my own!

Tao Xu

@txhf

Learning Machine at OpenAI

Daniel Kokotajlo

@DKokotajlo

Kai

@kaicathyc

Occasionally here. Currently research @OpenAI.

Josh Tobin

@josh_tobin_

automating scientific discovery @recursive_si

Peter Hase

@peterbhase

I work in grantmaking for AI safety and interpretability Currently: Schmidt Sciences, Stanford Previously: Anthropic, AI2, Google, Meta, UNC Chapel Hill