Zack Witten

973Following123Top Followers9.2KTotal Followers

BIO

Most content on https://bsky.app/profile/zswitten.bsky.social

@zswitten

Top followers

#36

John Schulman

@johnschulman2

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

#41

David Duvenaud

@DavidDuvenaud

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

#44

Jack Clark

@jackclarkSF

@AnthropicAI, writer @ Import AI. Past: @openai, @business @theregister. Neural nets, distributed systems, weird futures.

#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.

#76

Dustin Tran

@dustinvtran

@elorianai. ex-google ex-xai

#80

Susan Zhang

@suchenzang

Always hungry for intelligence.

#100

rohan anil

@_arohan_

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

#104

Aravind Srinivas

@AravSrinivas

cofounder and ceo @perplexity_ai

#106

Logan Kilpatrick

@OfficialLoganK

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

#140

Taco Cohen

@TacoCohen

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

#154

Boaz Barak

@boazbaraktcs

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

#167

Catherine Olsson

@catherineols

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

#182

Leopold Aschenbrenner

@leopoldasch

http://situational-awareness.ai

#190

Ethan Mollick

@emollick

Professor @Wharton studying AI. New book, Co-Existence, coming October 20. Preorder here: https://co-existence.ai/ Substack: https://www.oneusefulthing.org/

#215

Dimitris Papailiopoulos

@DimitrisPapail

Researcher @Microsoft | Prof @UWMadison (on leave) | babas of Inez Lily.

#219

Felix Hill

@FelixHill84

Research Scientist, Deepmind I try to think hard about everything I tweet, esp on 90s football and 80s music None of my opinions are really someone else's

#229

swyx 🗽 @aiDotEngineer NYC

@swyx

achieve ambition with intentionality, intensity, integrity & insanity. affiliations: - @smol_ai - @dxtipshq - @cognition - @aidotengineer - @latentspacepod

#231

Ashish Vaswani

@ashVaswani

#234

Dylan Field

@zoink

eliminate the gap between imagination and reality

#245

Jack Morris

@jxmnop

research @engramlab // language models, information theory, science of AI

#265

David Dohan

@dmdohan

reducing perplexity & ai for science | past: reasoning o1/o3/... @openai & probabilistic programs, proteins, science & reasoning @ google brain 🧠

#269

Karina

@karinanguyen

building @thoughtfullab, prev. AI research & product @OpenAI, @AnthropicAI, @maisonagi

#270

near

@nearcyan

where

#287

will depue

@willdepue

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

#337

Alex Tamkin

@AlexTamkin

machine learning, science & society @AnthropicAI | recently: Clio, Anthropic Economic Index, Claude Artifacts | prev: phd @StanfordAILab, @stanfordnlp

#350

Aidan McLaughlin

@aidan_mclau

posttraining research @openai

#380

Tom Brown

@NotTomBrown

Co-founder and Chief Compute Officer @AnthropicAI

#404

rapha

@rapha_gl

research lead @ openai

#435

Kawin Ethayarajh

@ethayarajh

Assistant Professor of Applied AI @ChicagoBooth @UChicago. PhD @stanfordnlp.

#443

Jesse Mu

@jayelmnop

computational linguistics

#485

Ari Holtzman

@universeinanegg

Asst Prof @UChicagoCS & @DSI_UChicago, leading Conceptualization Lab http://conceptualization.ai Minting new vocabulary to conceptualize generative models.

#494

Alex Albert

@alexalbert__

Research @AnthropicAI. Opinions are my own!

#503

James Campbell

@jam3scampbell

post training @OpenAI

#532

Cas (Stephen Casper)

@StephenLCasper

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

#542

Sharif Shameem

@sharifshameem

making models @openai

#559

cat

@_catwu

claude code + cowork @anthropicai, prev: @dagster, @scale_ai

#579

Jack Hessel

@jmhessel

Seattle bike lane enjoyer. Opinions my own.

#587

niki parmar

@nikiparmar09

Working @Anthropic. Views expressed here are my own.

#591

Yao Fu

@Francis_YAO_

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

#602

hattie

@oh_that_hat

Building friendly AI.

#603

Gabriel Ilharco

@gabriel_ilharco

AI Research Scientist

#647

finbarr

@finbarrtimbers

post training @microsoftai

#660

Matt Shumer

@mattshumer_

AI whisperer. Investor in @GroqInc @Etched @Rork @DaytonaIO @OpenRouter + more. Prev: CEO @HyperWriteAI | AI @AlphaSchool Press: mattshumermedia@gmail.com