Ryan Marten

Andrej Karpathy

@karpathy

I like to train large deep neural nets. Previously Director of AI @ Tesla, founding team @ OpenAI, PhD @ Stanford.

John Schulman

@johnschulman2

Recently started @thinkymachines. Interested in reinforcement learning, alignment, birds, jazz music

Christian Szegedy

@ChrSzegedy

#deeplearning, #ai research scientist. Opinions are mine.

Luke Zettlemoyer

@LukeZettlemoyer

Logan Kilpatrick

@OfficialLoganK

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

Taco Cohen

@TacoCohen

Slop janitor & post-trainologer at Meta / FAIR. Into codegen, RL, equivariance. Spent time at Qualcomm, Scyfer (acquired), UvA, Deepmind, OpenAI.

Ashish Vaswani

@ashVaswani

Omar Khattab

@lateinteraction

Asst professor @MIT CSAIL @nlp_mit. Research includes http://ColBERT.ai, http://DSPy.ai (@DSPyOSS), RLMs, and GEPA. Prev: CS PhD @StanfordNLP. Research @Databricks.

Alex Dimakis

@AlexGDimakis

Professor, UC berkeley | Founder @bespokelabsai |

Eric Zelikman

@ericzelikman

cofounder & ceo @humansand - building ai for humans // was lgtm-ing @xAI, phd-ing @stanford

Dimitris Papailiopoulos

@DimitrisPapail

Researcher @MSFTResearch, AI Frontiers | Prof @UWMadison (on leave) | babas of Inez Lily.

dr. jack morris

@jxmnop

research // language models, information theory, science of AI // formerly @cornell

Stella Biderman @ ICLR

@BlancheMinerva

Ensuring that tech companies don't have a monopoly on being able to do research on cutting edge AI @AiEleuther. She/her

Mohit Bansal

@mohitban47

Parker Distinguished Prof @UNC. PECASE/ACL/AAAI Fellow. Director http://MURGeLab.cs.unc.edu (@unc_ai_group). Past @Berkeley_AI @TTIC_Connect @IITKanpur #NLP #CV

Andrew Carr 🤸

@andrew_n_carr

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

Greg Durrett

@gregd_nlp

Associate professor at NYU (Courant CS + Center for Data Science) | advisor for @bespokelabsai | large language models and NLP | he/him

Luca Soldaini 🎀

@soldni

data mines are my passion ⛏️ mts @MicrosoftAI // ex co-lead Olmo @allen_ai // pfp @YanhongLi2062 // thoughts are mine, leave my employer alone // 🌈

Matei Zaharia

@matei_zaharia

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

will brown

@willccbb

reward hacking @primeintellect

Ludwig Schmidt

@lschmidt3

Assistant professor at @Stanford and member of the technical staff at @AnthropicAI.

Weijia Shi

@WeijiaShi2

PhD student @uwnlp | Prev @allen_ai @MetaAI @CS_UCLA | 🏠 http://weijiashi.notion.site

Jordan Boyd-Graber

@boydgraber

Trivia Nerd, NLPer, Dad, Colorado native in Maryland exile Working on QA, negotiating/cooperating bots, ML explanations Exemplar for absent-minded professor

Rylan Schaeffer

@RylanSchaeffer

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

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.

Yaroslav Bulatov

@yaroslavvb

@southparkcommons (early OpenAI, Google Brain, Meta) https://yaroslavvb.substack.com/ https://medium.com/@yaroslavvb https://yaroslavvb.blogspot.com/

Marco Mascorro

@Mascobot

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

Niklas Muennighoff

@Muennighoff

Researching AI/LLMs @Stanford @cursor_ai

Georges Harik

@gharik

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

Kyle Lo

@kylelostat

language models, data & evals, prev co-lead of Olmo @allen_ai, @uwcse, he/him, http://kylelo.bsky.social🧋

Costa Huang

@vwxyzjn

Exploiting physical rewards @periodiclabs. Prev: RL @allen_ai @huggingface. Built @cleanrl_lib.

Ross Wightman

@wightmanr

AI / Computer Vision. Ex head of Software, Firmware Engineering at a Canadian 🦄. Building AI systems or investing in startups that do it better.

Tamay Besiroglu

@tamaybes

Co-founder/CEO @MechanizeWork

Peter Chen

@peterxichen

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

Sayash Kapoor

@sayashk

I tweet about AI agents, AI evals, AI for science. AI as Normal Technology: http://bit.ly/ai-nt Book: http://bit.ly/ai-so

Daniel Han

@danielhanchen

Building @UnslothAI • Making open-source LLMs faster, better & more accessible • YC S24 • ex-NVIDIA ML

william

@wgussml

cofounder @ Project Prometheus, prev cofounder @generalagents, OpenAI, helped build copilot & MineRL, creator of ell

You Jiacheng

@YouJiacheng

John Yang

@jyangballin

CS PhD @Stanford. Created @SWEbench (multi-lingual/modal); SWE-agent; SWE-smith; InterCode; CodeClash; ProgramBench 🆕

Arash Vahdat

@ArashVahdat

Research Director, leading fundamental generative AI research (GenAIR) @nvidia research, volunteer at California Search & Rescue, views are my own.

evan conrad

@evanjconrad

ceo @sfcompute

Mitchell Wortsman

@Mitchnw

@AnthropicAI | prev @uwcse

Aditya Kusupati

@adityakusupati

Been places..... Done things.... Wandering @GoogleDeepMind Enjoying little things w/ @_keysarasara

Lewis Tunstall

@_lewtun

🤠 post-training @huggingface

Mahesh Sathiamoorthy

@madiator

RL Environment Curation. Data Curation (OpenThoughts). Post-training. CEO @bespokelabsai. Ex-GoogleDeepMind.

Valentina Pyatkin

@valentina__py

Postdoc at the Allen Institute for AI @allen_ai , @uwnlp , and @ETH_AI_Center

Toby Shevlane

@tshevl

@_Mantic_AI cofounder & CEO, on a mission to solve forecasting. Prev: research scientist @GoogleDeepMind, PhD at @UniofOxford.

Mariya I. Vasileva

@mariyaivasileva

Research @Meta Superintelligence Labs multimodal AI • VLMs • safety & alignment ex @AWS • 🎓 @UofIllinois (PhD), @Caltech @WiMLWorkshop, @CVFADworkshop • 🇧🇬

Maksym Andriushchenko

@maksym_andr

Principal investigator at @ELLISInst_Tue & @MPI_IS, mentor at @MATSprogram, PhD from @EPFL. Past works: AgentHarm, OS-Harm, HalluHard, PostTrainBench, Claudini.

Alex Ratner

@ajratner

@SnorkelAI @uwcse / prev @StanfordAILab – Interested in data management systems for machine learning, weak supervision, and impactful applications.