Sam Bowman
@sleepinyourhat
AI alignment + LLMs at Anthropic. On leave from NYU. Views not employers'. No relation to @s8mb. Into @givingwhatwecan.
Wojciech Zaremba
@woj_zaremba
AI SAFETYAI resilience at OpenAI Foundation Co-Founder of OpenAI https://woj.world
David Duvenaud
@DavidDuvenaud
ACADEMICMachine learning prof @UofT. Former team lead at Anthropic. Working on generative models, inference, & latent structure.
Dwarkesh Patel
@dwarkesh_sp
CREATORHost of @dwarkeshpodcast https://www.youtube.com/DwarkeshPatel https://open.spotify.com/show/4JH4tybY1zX6e5hjCwU6gF https://apple.co/3ujLQkZ
Zico Kolter
@zicokolter
ACADEMICProfessor and Head of Machine Learning Department at @CarnegieMellon. Board member @OpenAI and @Qualcomm. Chief Scientist @GraySwanAI.
Alexandr Wang
@alexandr_wang
EXECUTIVEchief ai officer @meta, founder @scale_ai. rational in the fullness of time
Sholto Douglas
@_sholtodouglas
RESEARCH ENGINEERScaling RL @AnthropicAI, ex @DeepMind - working towards intelligence too cheap to meter
Amanda Askell
@AmandaAskell
AI SAFETYPhilosopher & ethicist trying to make AI be good @AnthropicAI. Personal account. All opinions come from my training data.
Joshua Achiam
@jachiam0
AI SAFETYFreedom, flourishing, and abundance. Chief Futurist @openai. Main author of http://spinningup.openai.com
Taco Cohen
@TacoCohen
RESEARCH ENGINEERSlop janitor & post-trainologer at Meta / FAIR. Into codegen, RL, equivariance. Spent time at Qualcomm, Scyfer (acquired), UvA, Deepmind, OpenAI.
Catherine Olsson
@catherineols
RESEARCH ENGINEERHanging out with Claude, improving its behavior, and building tools to support that @AnthropicAI 😁 prev: @open_phil @googlebrain @openai (@microcovid)
typedfemale
@typedfemale
RESEARCH ENGINEERa really exciting new account "advanced pytorch user" - @cHHillee alt: @typedalt
rishi
@RishiBommasani
POLICYEconomic impacts of AI; AI policy & governance @StanfordHAI Previous: Stanford CS PhD w/ @percyliang @jurafsky, Cornell CS
Rohan Pandey
@khoomeik
RESEARCH ENGINEERdescending cross-entropy to ascend entropy @PeriodicLabs || prev research @OpenAI @CarnegieMellon '23
Owain Evans
@OwainEvans_UK
AI SAFETYRuns an AI Safety research group in Berkeley (Truthful AI) + Affiliate at UC Berkeley. Past: Oxford Uni, TruthfulQA, Reversal Curse. Prefer email to DM.
Rachel Thomas
@math_rachel
CREATORR&D at answer ai | fast ai co-founder | past: math PhD, immunology MS, early eng at uber, prof at USF Data Institute
Alex Tamkin
@AlexTamkin
RESEARCHERmachine learning, science & society @AnthropicAI | recently: Clio, Anthropic Economic Index, Claude Artifacts | prev: phd @StanfordAILab, @stanfordnlp
Helen Toner
@hlntnr
POLICYAI, national security, China. Part of the founding team at @CSETGeorgetown (opinions my own). Author of Rising Tide on substack: http://helentoner.substack.com
kipply
@kipperrii
RESEARCH ENGINEER"uncanny ability to be mentioned in every slack thread about code that's mysteriously breaking" - claude
Kevin Roose
@kevinroose
CREATORNYT tech columnist, Hard Fork co-host, high-perplexity language model. Writing a book about AGI.
Patrick Hsu
@pdhsu
ACADEMIC@ArcInstitute co-founder, @Stanford professor, @ThriveCapital investor | biology and ML research | 🇨🇦 prev @harvard @broadinstitute, Fast Grants
Ajeya Cotra
@ajeya_cotra
AI SAFETYHelping the world prepare for extremely powerful AI. Risk assessment @METR_evals. Writing at Planned Obsolescence (about AI), Good Bones (about whatever).
Yo Shavit
@yonashav
AI SAFETYpolicy for v smart things @openai. Past: CS PhD @HarvardSEAS/@SchmidtFutures/@MIT_CSAIL. Tweets my own; on my head be it.
Yonatan Belinkov
@boknilev
ACADEMICAssociate professor of computer science @TechnionLive; visiting scholar @KempnerInst 2025-2026.
Yasaman Bahri
@yasamanbb
RESEARCHERResearch Scientist @GoogleDeepMind // AI + physics // Ph.D. @UCBerkeley.
William MacAskill
@willmacaskill
RESEARCHERConsider donating 10% to effective charities: http://www.givingwhatwecan.org/pledge Or a career for impact: http://80000hours.org My research: http://forethought.org
Andy Matuschak
@andy_matuschak
RESEARCHERMore wonder, more insight, more expression, more joy! R&D on tools for thought, with a focus on memory, reading, and attention. Currently working on @pico.
Alexey Guzey
@alexeyguzey
RESEARCHERhttp://guzey.com, http://newscience.org, @openai; in pursuit of a just, beautiful future.
Jimmy Apples 🍎/acc
@apples_jimmy
CREATORWagmi. 2025. As featured in Bloomberg. As quoted by Nobel Prize winner Demis Hassabis. As mentioned on the Lex Fridman Podcast💺
Joe Carlsmith
@jkcarlsmith
AI SAFETYPhilosophy, futurism, AI. Working on Claude's values @AnthropicAI. Formerly @coeff_giving. Opinions my own.
Andrew White 🐦⬛
@andrewwhite01
ACADEMICAutomating science. Cofounder @EdisonSci. Cofounder @FutureHouseSF. Prof of chem eng @UofR (on sabbatical).
Rob Wiblin
@robertwiblin
CREATORHost of the 80,000 Hours Podcast. Exploring the inviolate sphere of ideas one interview at a time: http://80000hours.org/podcast/