Mahesh Sathiamoorthy @madiator
RL Environment Curation. Data Curation (e.g. OpenThoughts). Post-training. CEO @bespokelabsai. Ex-GoogleDeepMind. smahesh.com Token Town Joined February 2008-
Tweets4K
-
Followers13K
-
Following1K
-
Likes5K
We are looking to hire an intern who can work on our RL environment curation and data curation stack. Prior experience with post-training is a must, as well as great software engineering skills. DM me or email your resume to hiring at bespokelabs dot ai. In addition, we are…
This is probably the world's first selfie taken in around 1910 in SF. And I was the only one not wearing a hat. Bananas!
What's amazing about RL is that it helps us build self-improving systems and improve reasoning. And in fact a lot of people believe it is the missing ingredient for getting to AGI. And just like data has been the oil for SFT, building good RL environments are key to good…
What's amazing about RL is that it helps us build self-improving systems and improve reasoning. And in fact a lot of people believe it is the missing ingredient for getting to AGI. And just like data has been the oil for SFT, building good RL environments are key to good…
So I think it's kind of weird that we expect models to be able to do everything, like literally everything.
So all of us have built a mental model of which model to use when. It's not the same between people and it may not even be scientific but we have a router in our head. So now that's a bit of a problem for OpenAI since it feels like we want to select which model to use when…
A glimpse into the model's soul
Why are people so enamored by one person billion dollar company? Sounds like a lonely endeavor.
The only correct response
llama3.1-8b was the favorite model for OSS. Meta could have kept its leadership, but now OpenAI will take this baton. Enterprises will finetune on OAI and will go to OAI for help. Good for them!
If you don't know what is scalable oversight is, you will soon be overseen by an AI.
If you had to give a number for model improvement, what would you say it is, for gpt3.5 vs. gpt4 vs. o1 vs. o3, or claude 3 vs. claude 4, or the gemini milestone improvements. 2x better? 10x better?
Another new player from China.
Another new player from China.

Jim Fan @DrJimFan
325K Followers 3K Following 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.
Jason Wei @_jasonwei
98K Followers 636 Following ai researcher @meta superintelligence labs, past: openai, google 🧠
elvis @omarsar0
263K Followers 664 Following Building with AI agents @dair_ai • Prev: Meta AI, Galactica LLM, Elastic, PaperswithCode, PhD • I share insights on how to build with AI Agents ↓
rohan anil @_arohan_
25K Followers 2K Following
Deedy @deedydas
205K Followers 5K Following VC at @MenloVentures. Formerly founding team @glean, @Google Search. @Cornell CS. Tweets about tech, immigration, India, fitness and search.
Jeff Dean @JeffDean
365K Followers 6K Following Chief Scientist, Google DeepMind & Google Research. Gemini Lead. Opinions stated here are my own, not those of Google. TensorFlow, MapReduce, Bigtable, ...
Gary Marcus @GaryMarcus
191K Followers 7K Following “In the aftermath of GPT-5’s launch … the views of critics like Marcus seem increasingly moderate.” —@newyorker
Aakanksha Chowdhery @achowdhery
11K Followers 5K Following @Stanford @reflection_ai // Previously @GoogleDeepMind :: PaLM, Gemini // @MSFTResearch, @Princeton // views my own and subject to change
Sam Bowman @sleepinyourhat
50K Followers 3K Following AI alignment + LLMs at Anthropic. On leave from NYU. Views not employers'. No relation to @s8mb. I think you should join @givingwhatwecan.
Jay Hack @mathemagic1an
55K Followers 3K Following Building @codegen. Tweets about AI, computing and dev tools. Previously did startups, @palantir. Not a pseudonym.
Denny Zhou @denny_zhou
21K Followers 541 Following Founded & lead the Reasoning Team in Google Brain (now part of Google DeepMind). Build LLMs to reason. Opinions my own.
Taco Cohen @TacoCohen
27K Followers 3K Following Post-trainologer at FAIR. Into codegen, RL, equivariance, generative models. Spent time at Qualcomm, Scyfer (acquired), UvA, Deepmind, OpenAI.
Yao Fu @Francis_YAO_
20K Followers 2K Following Research Scientist at @GoogleDeepMind I study complex, multimodal, interactive reasoning. Opinions are my own
Cameron R. Wolfe, Ph.... @cwolferesearch
27K Followers 677 Following Research @Netflix • Writer @ Deep (Learning) Focus • PhD @optimalab1 • I make AI understandable
Wenhu Chen @WenhuChen
22K Followers 663 Following AI researcher. Interested in Reasoning, Multimodal. I direct TIGER-Lab. Author of PoT, MMMU, MMLU-Pro, MAmmoTH, LongRAG, MAP-Neo, YuE, VL-Rethinker
Sara Hooker @sarahookr
49K Followers 9K Following I lead @Cohere_Labs. Formerly Research @Google Brain @GoogleDeepmind. ML Efficiency at scale, LLMs, ML reliability. Changing spaces where breakthroughs happen.
Balazs Deme @BalazsDeme
480 Followers 2K Following Working on something new. Previously Co-Founder Pile Capital (acq. @vivid_en).
abhi @chendotnet
155 Followers 163 Following building an agentic devops engineer @ https://t.co/lqTWt8jDOl (yc s25) berkeley cs + city planning talk to me about urban planning and architecture
Aniket upadhyay @Aniketu89741067
1K Followers 6K Following A Synkie || Building Synk IN || Developer || Problem Solver Follow and Let's Build and Grow Together 🤝🤝||
Nitin Chaudhary @Nitinnennn
64 Followers 405 Following 19 | Full Stack Gen AI Engineer | 100+ github repo | 7+ projects published | 25K user traffic |
Paco Villetard @pacovilletard
410 Followers 178 Following CTO @CtrlG_com to make machines better at coding Still managing the open source community @OnlyDust_com
R Madhusudhana @madhusudha21926
2 Followers 6 Following
Dean Andreakis @deanandreakis
473 Followers 2K Following AI-powered creator | Founder of CopyCraftsmith, Silent Group Reminder | Simplifying life through tech 🚀
Saber Darabi @SADarabi
302 Followers 7K Following
Flawvnau @Flawvnau5068
12 Followers 358 Following
云创兽Ai @Sorblaw5494
6 Followers 67 Following ⚡ curious girl with a knack for exploring options trading! open to insights. Chat ECB policies via DM! ⚡ #Nasdaq #Stocks
Shridhar Kumar @Shridharkreyn
5 Followers 143 Following
Sergey Karayev @sergeykarayev
13K Followers 3K Following Building with agents @superconductdev • Previously co-founded @gradescope • PhD Berkeley AI
Ruskaruma @ruskaruma08
291 Followers 581 Following per-final year, into applied math, ML/DL, and systems programming while chasing something that matters. Founding team and doing something @MailWave_io
PRATHAM SINGLA 231120... @ps_1506
0 Followers 4 Following
Thinkingloop @Thiscouldb79
14 Followers 363 Following
Dalton_lovegood @dalton_lovegood
49 Followers 456 Following Venture Capitalist @Monolith; Research Associate @Cambridge_Uni; Alumni @CUHKofficial; Focus on #AI #MachineLearning #Cloud M-A-P @mm_art_project
Ibragim @ibragim_bad
135 Followers 120 Following rl environments for code agents | staff research engineer | @nebiusai | UK Global Talent |
smile @Smilex_P
222 Followers 5K Following
Xuheng Li @xuhengli_
956 Followers 2K Following CS PhD candidate @UCLA, supervised by @QuanquanGu | RL, deep learning theory, diffusion model | Previously BSc @PKU1898 | Stargazer
Braulio Otavalo @BraulioOtavalo
258 Followers 5K Following AI consultant for digital transformation projects and ML applications to the industry.
data ploombrr @dataploombrr
0 Followers 145 Following
Shivank @Shivank2108
43 Followers 93 Following
Utkarsh Prakash @utkarshprak10
10 Followers 349 Following
Anudeep@1 @Anudeep019
24 Followers 483 Following
Atharv Kulkarni @Atharvsk22
9 Followers 102 Following M.S. in Computer Science UNC Chapel Hill B.S. in Computer Science University of Utah
Thao Nguyen @thao_nguyen26
1K Followers 307 Following PhD student @uwcse & visiting researcher @AIatMeta. Formerly @GoogleAI Resident, @Stanford'19, @twosigma.
Arvindh Ganesan 🇺�... @ArvindhSays
204 Followers 1K Following Married up with two lovely kids! Data scientist with a keen eye for noise!
kay @snng24
4 Followers 1K Following
Gaurav Nehra @GauravNehr77274
54 Followers 1K Following Looking for Job/Internship in Software Engineering | Front-End Development | React JS | JavaScript |
Max Rudolph @maxbrudolph
271 Followers 374 Following CS PhD @UTAustin with @yayitsamyzhang | BS/MS @GeorgiaTech | @NSF Ethical AI Fellow. I prev RS intern @Amazon |
Kamalesh Kumar @KamaleshKumarK_
3 Followers 340 Following RL enthusiast | Grad Student @ University of Massachusetts Amherst | IIT Madras
Shuozhe Li @ShuozheL
120 Followers 372 Following CS PhD student at UT-Austin. Eager to learn about the world 💔.
Jyotin Goel @GoelJyotin94856
40 Followers 381 Following Research @Sony | Senior Undergrad IITJ | https://t.co/aJ8hRxza36
R-NH2 @oh_amino
113 Followers 794 Following On est tous exceptionnels mais on a juste du mal à démarrer
prothos @PyTweeter93074
37 Followers 536 Following d̶o̶t̶a̶, ML only. building https://t.co/lW8ZX29IX5
Bill Leoutsakos @Bi11Leou
131 Followers 525 Following Computer Engineering @cambridge_uni | ex-ML Engineer @Cosine_AI | Eurotech Fellow
Shrey Modi @ShreyModi13
172 Followers 822 Following CS @iitbombay, @uchicago. Incoming @FireworksAI_HQ. prev @nexusvp @barclays. Reinforcement learning research at NeurIPS, ICLR.
Tetraslam @Tetraslam
1K Followers 3K Following 18 | @northeastern cs/linguistics | ml @mit | ex-intern in chief @mosaic_so (yc w25) | @fdotinc | worldbuilder & shoegaze rocker
Kaushik @Kaushik_901
475 Followers 478 Following 21 • cs • full stack engineer • open to internships and freelance work🌱
Yann LeCun @ylecun
949K Followers 764 Following Professor at NYU. Chief AI Scientist at Meta. Researcher in AI, Machine Learning, Robotics, etc. ACM Turing Award Laureate.
Andrej Karpathy @karpathy
1.4M Followers 1K Following Building @EurekaLabsAI. Previously Director of AI @ Tesla, founding team @ OpenAI, CS231n/PhD @ Stanford. I like to train large deep neural nets.
AK @_akhaliq
425K Followers 3K Following AI research paper tweets, ML @Gradio (acq. by @HuggingFace 🤗) dm for promo ,submit papers here: https://t.co/UzmYN5YmrQ
François Chollet @fchollet
572K Followers 813 Following Co-founder @ndea. Co-founder @arcprize. Creator of Keras and ARC-AGI. Author of 'Deep Learning with Python'.
Jim Fan @DrJimFan
325K Followers 3K Following 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.
Sebastian Raschka @rasbt
354K Followers 1K Following ML/AI researcher & former stats professor turned LLM research engineer. Author of "Build a Large Language Model From Scratch" (https://t.co/O8LAAMRzzW).
Yi Tay @YiTayML
46K Followers 81 Following research scientist @googledeepmind ✨♊, model co-lead/captain of gemini deepthink imo gold medal 🥇, opinions are my own.
Jason Wei @_jasonwei
98K Followers 636 Following ai researcher @meta superintelligence labs, past: openai, google 🧠
Google DeepMind @GoogleDeepMind
1.2M Followers 279 Following We’re a team of scientists, engineers, ethicists and more, committed to solving intelligence, to advance science and benefit humanity.
Percy Liang @percyliang
84K Followers 417 Following Associate Professor in computer science @Stanford @StanfordHAI @StanfordCRFM @StanfordAILab @stanfordnlp | cofounder @togethercompute | Pianist
elvis @omarsar0
263K Followers 664 Following Building with AI agents @dair_ai • Prev: Meta AI, Galactica LLM, Elastic, PaperswithCode, PhD • I share insights on how to build with AI Agents ↓
Andrew Ng @AndrewYNg
1.3M Followers 1K Following Co-Founder of Coursera; Stanford CS adjunct faculty. Former head of Baidu AI Group/Google Brain. #ai #machinelearning, #deeplearning #MOOCs
rohan anil @_arohan_
25K Followers 2K Following
AI at Meta @AIatMeta
712K Followers 288 Following Together with the AI community, we are pushing the boundaries of what’s possible through open science to create a more connected world.
Jo Kristian Bergum @jobergum
19K Followers 1K Following CEO https://t.co/sYmUNgPBq8 - The retrieval engine for agents.
Ibragim @ibragim_bad
135 Followers 120 Following rl environments for code agents | staff research engineer | @nebiusai | UK Global Talent |
Thao Nguyen @thao_nguyen26
1K Followers 307 Following PhD student @uwcse & visiting researcher @AIatMeta. Formerly @GoogleAI Resident, @Stanford'19, @twosigma.
Prakhar Agarwal @prakhar5050
2K Followers 4K Following Prev. Applied Research @openai. Grad Student at Univ. of Washington (@uwcse) , ML @ @apple, Research Fellow at @MSFTResearch | YR @HLForum
Jathushan Rajasegaran @brjathu
1K Followers 794 Following photographer, comedian, billionaire (in parameters). I like training models. ***I hate people individually, but love mankind as a whole.***
Naina Raisinghani @nainar92
720 Followers 148 Following Product Manager at Google DeepMind working on images. I tweet funny things about being nano. 🤷🏽♀️
Eryk Helenowski @ErykHelenowski
515 Followers 236 Following
David Brandfonbrener @brandfonbrener
1K Followers 619 Following research scientist @AIatMeta. Previously: phd from @nyu_courant, research fellow @KempnerInst @Harvard
Alexandr Wang @alexandr_wang
327K Followers 833 Following chief ai officer @meta, founder @scale_ai. rational in the fullness of time
Zafir Stojanovski @zafstojano
984 Followers 749 Following ML engineer | passionate about reinforcement learning, catastrophic forgetting, and fair evals
LDJ @ldjconfirmed
6K Followers 530 Following e/λ Currently: Doing some stuff with AI. Prev founding team of both: @NousResearch and @TTSLabsAI DM for interesting conversations.
Will Whitney @wfwhitney
2K Followers 253 Following Research Scientist at DeepMind. Former grad student at NYU, MIT undergrad, and YC founder.
Ben Mildenhall @BenMildenhall
8K Followers 2K Following making stuff 3D at @theworldlabs. co-creator of NeRF and dreamfusion.
Niloofar (✈️ ACL) @niloofar_mire
7K Followers 2K Following Niloofar Mireshghallah — incoming asst. prof @LTIatCMU @CMU_EPP, RS in @AIatMeta, postdoc @uwcse, Ph.D. @ucsd_cse, former @MSFTResearch -Privacy, ML, NLP
Jon Chu // Khosla Ven... @heyjchu
8K Followers 499 Following Partner @khoslaventures, founder @ Koality (exited), OG @PalantirTech, @Opendoor, @Docker, ML @facebook
Igor Babuschkin @ibab
103K Followers 852 Following Maybe the real ASI was the friends we made along the way. Co-founder @xAI, Research & Engineering
Kevin Taylor @KevinTaylor00
74 Followers 17 Following Engineer Intern @ Cerebras Systems Passionate about computer science + AI Tag me in cool AI applications https://t.co/5xvwM73wsk
Jack Morris @jxmnop
45K Followers 974 Following research @cornell @meta // language models, information theory, science of AI
Aleksander Holynski @holynski_
9K Followers 397 Following research @GoogleDeepMind & professor @Columbia. prev: @berkeley_ai. Generative video+3D (Veo3, Genie3, InstructPix2Pix, CAT3D, MegaSaM, ...)
Yuhuai (Tony) Wu @Yuhu_ai_
38K Followers 452 Following Co-Founder @xAI. Grok Reasoning, STaR, Minerva, AlphaGeometry, Autoformalization, AlphaStar, Memorizing transformer.
Ethan Dyer @ethansdyer
994 Followers 132 Following
Laurens van der Maate... @lvdmaaten
4K Followers 2K Following Member of Technical Staff at Anthropic. Ex-Meta. t-SNE. Llama 3. DenseNet. Web-scale weakly supervised vision. CrypTen.
Sachin @sachdh
3K Followers 960 Following cooking reasoning models and agents at @AthenaAgentRL - a narrow intelligence lab
Akshita Gupta @akshitac8
862 Followers 5K Following PhD @TUDarmstadt @ELLISforEurope w/ @marcus_rohrbach & @fedassa | Prev: MASc at @UofG, @VectorInst | Prev : @Apple,@MSFTResearch; research engineer @core42
Danish Pruthi @danish037
11K Followers 706 Following Faculty at the Indian Institute of Science, Bangalore. PhD from @LTIatCMU.
Dan Austin @DanAiTuning
140 Followers 289 Following I get LLMs to do things whilst drinking large amounts of tea 🤓🍵
Vijay V. @vijaytarian
694 Followers 477 Following Grad student at CMU. I do research on applied NLP. he/him
Varun Mayya @waitin4agi_
215K Followers 2K Following waiting for agi. i live to experiment. don't take me too seriously I am an idiot. trying to build distractions (content, AI tools, games) for a post AGI world.
gabriel @GabrielPeterss4
35K Followers 485 Following research sora at @OpenAI, previously at midjourney, swedish high school dropout
Harold Benoit @harold_matmul
446 Followers 260 Following Another day of being a researcher in theory but an engineer in practice | tech staff @LiquidAI_
Sang Cho @Saaaang94
2K Followers 460 Following reasoning @xAI | prev-founding engineer @anyscalecompute | senior committer of @raydistributed | committer @vllm_project Sglang | Github: rkooo567
Cong Lu @cong_ml
3K Followers 1K Following Research Scientist @GoogleDeepMind on the Open-Endedness Team. Prev: Postdoc @UBC_CS, PhD @UniofOxford.
Taco Cohen @TacoCohen
27K Followers 3K Following Post-trainologer at FAIR. Into codegen, RL, equivariance, generative models. Spent time at Qualcomm, Scyfer (acquired), UvA, Deepmind, OpenAI.
Satnam Singh @satnam6502
19K Followers 3K Following Punjabi-Scottish-American computer scientist, cook, cyclist, Lost In Music. ∃🇮🇳 ∧ ∀🇬🇧 ∧ ∃🇪🇺 ∧ ∀🇺🇸 #celiac ex-{Microsoft, Google, Facebook, Xilinx}
Shashwat Goel @ShashwatGoel7
2K Followers 960 Following Scaling supervision for AI on evals that matter. RS Intern @AIatMeta PhDing @ELLISInst_Tue @MPI_IS
Fei Liu @feiliu_nlp
2K Followers 887 Following Associate professor @EmoryUniversity. Working on large language models, LLM inference, reasoning, natural language generation, and various aspects of GenAI.