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    Stephen Roller

    Stephen Roller

    1.3KFollowing323Top Followers6.1KTotal Followers

    BIO

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

    #497in/Tech
    @stephenroller
    @stephenroller

    Vibe and topics

    Based on 140 recent X posts · click a vibe for evidence

    Vibe
    Informing
    Informing22.6%
    Humorous20%
    Teaching14.5%
    Supportive10%
    Announcing9.8%
    Hopeful8.3%
    Provocative6.3%
    Banter4.6%
    Devil's Advocate3.6%
    Topics
    Research Engineering
    Research Engineering35.5%
    Conversational AI22.1%
    LLM Training21.5%
    Character AI9.9%
    AI Scaling Laws3.7%
    GPU Hardware3.5%
    OPT Models3.1%
    Other0.6%

    Top followers

    Andrej Karpathy
    #1

    Andrej Karpathy

    @karpathy

    Yann LeCun
    #3

    Yann LeCun

    @ylecun

    Founder/Chair, AMI Labs; Professor, NYU; Partner, 224 Ventures; Ex-Chief AI Scientist, Meta. Researcher in AI, ML, Robotics, etc. ACM Turing Award Laureate.

    Kyunghyun Cho
    #14

    Kyunghyun Cho

    @kchonyc

    a mediocre combination of a mediocre professor at @nyuniversity and a mediocre CEO at @OrtetAI

    Sasha Rush
    #19

    Sasha Rush

    @srush_nlp

    Researcher, Programmer https://www.youtube.com/@srush_nlp

    Lilian Weng
    #25

    Lilian Weng

    @lilianweng

    MTS @OpenAI; Author of Lil'Log

    Percy Liang
    #26

    Percy Liang

    @percyliang

    professor of computer science @Stanford @stanfordnlp, co-founder of @togethercompute, http://marin.community, @simile_ai, pianist

    Zachary Lipton
    #30

    Zachary Lipton

    @zacharylipton

    Professor: CMU/@acmi_lab, Cofounder: @AbridgeHQ, Creator: @d2l_ai & http://approximatelycorrect.com, Relapsing 🎷

    John Schulman
    #36

    John Schulman

    @johnschulman2

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

    Noam Brown
    #42

    Noam Brown

    @polynoamial

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

    Mira Murati
    #46

    Mira Murati

    @miramurati

    Now building @thinkymachines. Previously CTO @OpenAI

    Jason Wei
    #48

    Jason Wei

    @_jasonwei

    ai researcher @meta, past: openai, google 🧠

    Tim Rocktäschel
    #51

    Tim Rocktäschel

    @_rockt

    Teaching AI the joy of invention at @Recursive_SI, Professor of AI @AI_UCL, PI @BOLD_Lab_AI, Fellow @ELLISforEurope. Ex @GoogleDeepMind @AIatMeta @CompSciOxford

    Sebastian Ruder
    #55

    Sebastian Ruder

    @seb_ruder

    Research Scientist @AIatMeta MSL • Ex @Cohere @GoogleDeepMind

    Soumith Chintala
    #57

    Soumith Chintala

    @soumithchintala

    Building new things @thinkymachines. Also dabble in robotics at NYU. Cofounded @PyTorch. AI is delicious when it is accessible and open-source.

    Shane Gu
    #58

    Shane Gu

    @shaneguML

    Sr. Staff RS GenAI @GoogleDeepMind. 🇯🇵-born 🇨🇳🇨🇦. ex: Omni Thinking, Gemini 1.5-3, GPT-4 @OpenAI, GoogBrain Robotics (JP: @shanegJP). Personal opinions.

    Tim Dettmers
    #62

    Tim Dettmers

    @Tim_Dettmers

    Creator of bitsandbytes. Professor @CarnegieMellon and Research Scientist @allen_ai . I blog about deep learning and PhD life at http://timdettmers.com.

    Jim Fan
    #66

    Jim Fan

    @DrJimFan

    NVIDIA Director of Robotics & Distinguished Scientist. Co-Lead of GEAR lab. Solving Physical AGI, one motor at a time. Stanford Ph.D. OpenAI's 1st intern.

    Eric Jang
    #68

    Eric Jang

    @ericjang11

    Edward Grefenstette
    #71

    Edward Grefenstette

    @egrefen

    FR/US/GB AI/ML Person, Director of Research at @GoogleDeepMind, Honorary Professor at @BOLD_Lab_AI, @ELLISforEurope Fellow. All posts are personal.

    Luke Zettlemoyer
    #77

    Luke Zettlemoyer

    @LukeZettlemoyer

    François Chollet
    #83

    François Chollet

    @fchollet

    Co-founder @ndea. Co-founder @arcprize. Creator of Keras and ARC-AGI. Author of 'Deep Learning with Python'.

    (((ل()(ل() 'yoav))))👾
    #92

    (((ل()(ل() 'yoav))))👾

    @yoavgo

    Barret Zoph
    #97

    Barret Zoph

    @barret_zoph

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

    Liam Fedus
    #99

    Liam Fedus

    @LiamFedus

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

    rohan anil
    #100

    rohan anil

    @_arohan_

    co-founder, board @coreauto - and continuing to aspire to understand deep learning.

    Sholto Douglas
    #101

    Sholto Douglas

    @_sholtodouglas

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

    Logan Kilpatrick
    #106

    Logan Kilpatrick

    @OfficialLoganK

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

    Diyi Yang
    #118

    Diyi Yang

    @Diyi_Yang

    Assistant Professor @Stanford CS @StanfordNLP @StanfordAILab Part time @humansand LLMs for Humans

    Matthew Johnson
    #121

    Matthew Johnson

    @SingularMattrix

    Researcher at Google Brain. I work on JAX (https://github.com/google/jax).

    sarah guo
    #122

    sarah guo

    @saranormous

    startup investor/helper, founder @conviction. interested in intelligence, accelerating progress. tech podcast: @nopriorspod

    Jakob Foerster
    #126

    Jakob Foerster

    @j_foerst

    Associate Prof in ML @UniofOxford. Something Something Research Scientist @MetaAI. Something @BOLD_LAB_AI. Always #teamhuman. Opinions belong to the world.

    Danqi Chen @COLM 2026
    #127

    Danqi Chen @COLM 2026

    @danqi_chen

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

    Jerry Tworek
    #131

    Jerry Tworek

    @MillionInt

    CEO and co-founder of @coreauto former VP of RL @ OpenAI : reasoning models, o3, o1, GPT4, ChatGPT, Codex, RL for robots cautious AI optimist

    Eric Wallace
    #135

    Eric Wallace

    @Eric_Wallace_

    research @openai

    Taco Cohen
    #140

    Taco Cohen

    @TacoCohen

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

    Brandon Amos
    #143

    Brandon Amos

    @brandondamos

    🧙 RL @Reflection_AI past: @MetaAi @GoogleDeepmind @SCSatCMU @Cornell_Tech

    Jason Weston
    #145

    Jason Weston

    @jaseweston

    Senior Director & RS @Meta + Visiting Prof NYU | OG in LLMs | Pretrain+Finetune in 2008+ | 157k+ citations | Current: Self-Improving & Co-Improving AI

    Jascha Sohl-Dickstein
    #147

    Jascha Sohl-Dickstein

    @jaschasd

    Member of the technical staff @ Anthropic. Most (in)famous for inventing diffusion models. AI + physics + neuroscience + dynamics.

    Ethan Perez
    #149

    Ethan Perez

    @EthanJPerez

    Alignment team lead at Anthropic

    Luke Metz
    #154

    Luke Metz

    @Luke_Metz

    Meta Previously: Thinking Machines, OpenAI, Google Brain

    Sewon Min
    #155

    Sewon Min

    @sewon__min

    Assistant professor @Berkeley_EECS @berkeley_ai || Research scientist at @allen_ai || PhD from @uwcse @uwnlp

    Sham Kakade
    #163

    Sham Kakade

    @ShamKakade6

    Harvard Professor. Full stack ML and AI. Co-director of the Kempner Institute for the Study of Artificial and Natural Intelligence.

    Saining Xie
    #166

    Saining Xie

    @sainingxie

    cofounder & chief science officer at @amilabs | faculty @nyu_courant | prev: @googledeepmind @meta (fair) @ucsandiego | ynwa

    Yoav Artzi
    #168

    Yoav Artzi

    @yoavartzi

    Research/prof @cs_cornell + @cornell_tech🚡 / http://nlp.cornell.edu / researcher @GoogleDeepMind / building @COLM_conf / ex @arxiv

    Mark Riedl
    #170

    Mark Riedl

    @mark_riedl

    AI for storytelling, games, explainability, safety, ethics. Professor @GeorgiaTech. Associate Director @MLatGT. Time travel expert. Geek. Dad. he/him

    Sebastian Raschka
    #177

    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)

    Yuandong Tian
    #188

    Yuandong Tian

    @tydsh

    Co-founder of @Recursive_SI. ex-Meta FAIR Director. ex-Google. Reasoning, Optimization and Understanding LLM. Novelist in spare time. PhD in @CMU_Robotics.

    Jack Rae
    #189

    Jack Rae

    @jack_w_rae

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

    Bob McGrew
    #192

    Bob McGrew

    @bobmcgrewai

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

    Rowan Zellers
    #194

    Rowan Zellers

    @rown

    multimodal @thinkymachines. I also like to climb rocks and throw pottery. http://rowanzellers.com (he/him)