David Hefter @davehefter

Joined April 2015

Tweets

0
Followers

6
Following

87
Likes

0

No recent Tweets. New Tweets will appear here.

focusnote @Z_Katz

66 Followers 113 Following Stagehand; runner (sometimes); lover of food, beer, and cats

Sarah Rombom @roms1116

40 Followers 218 Following

CarmenT @CarmenTeresita

19 Followers 2K Following

World’s Okayest Mom @wrldsokayestmom

412 Followers 1K Following (she/her) Democratic activist and fierce mother of twins.

Angie Shin @chewyshin

290 Followers 363 Following live 4 fam, friends, food, spontaneous dance parties.

Steven Popovitch @stevenpopovitch

68 Followers 178 Following

xAI @xai

1.8M Followers 38 Following

Riley Brown @rileybrown_ai

90K Followers 2K Following Cofounder of @vibecodeapp | the Cursor for Mobile Apps. And @sandboxvibe the easiest way to use Claude code and Codex

Tsarathustra @tsarnick

86K Followers 6K Following Boy, accelerated

President & CEO @ycombinator —Founder @Initialized—designer/engineer who helps founders—San Francisco Dem accelerating the boom loop—e/acc—technology brother

Garry Tan @garrytan

610K Followers 5K Following President & CEO @ycombinator —Founder @Initialized—designer/engineer who helps founders—San Francisco Dem accelerating the boom loop—e/acc—technology brother

first investor in https://t.co/M6cblbFld9 Host: @twistartups @theallinpod; I also invest in 100 startups a year @launch & @founderuni jason@calacanis.com for life

@jason @Jason

1.0M Followers 6K Following first investor in https://t.co/M6cblbFld9 Host: @twistartups @theallinpod; I also invest in 100 startups a year @launch & @founderuni [email protected] for life

Emad @EMostaque

292K Followers 25 Following Distributing Intelligence @ii_posts. Founder @StabilityAI.

Partner @MenloVentures. Formerly founding team @glean, @Google Search. @Cornell CS. Tweets about tech, immigration, India, fitness and search.

Deedy @deedydas

209K Followers 5K Following Partner @MenloVentures. Formerly founding team @glean, @Google Search. @Cornell CS. Tweets about tech, immigration, India, fitness and search.

Sahil Dhingra @sahildhingra_

122 Followers 108 Following cofounder & CEO @DeepReel_AI | AI video generation

ML Researcher @AnthropicAI. Previously OpenAI & DeepMind.
Optimizing for a post-AGI future where humanity flourishes. Opinions aren't my employer's.

Jan Leike @janleike

116K Followers 332 Following ML Researcher @AnthropicAI. Previously OpenAI & DeepMind. Optimizing for a post-AGI future where humanity flourishes. Opinions aren't my employer's.

Researching reasoning @OpenAI | Co-created Libratus/Pluribus superhuman poker AIs, CICERO Diplomacy AI, and OpenAI o3 / o1 / 🍓 reasoning models

Noam Brown @polynoamial

92K Followers 859 Following Researching reasoning @OpenAI | Co-created Libratus/Pluribus superhuman poker AIs, CICERO Diplomacy AI, and OpenAI o3 / o1 / 🍓 reasoning models

entrepreneurship zealot, grounded technology possibilist, believer in the power of ideas, passionate about sustainability & impact

Vinod Khosla @vkhosla

687K Followers 604 Following entrepreneurship zealot, grounded technology possibilist, believer in the power of ideas, passionate about sustainability & impact

The best from ML/AI community | Ex-Microsoft, Rackspace, Fast Company | Wrote eight books about the future | Silicon Valley robots, holodecks, BCIs, & startups.

Robert Scoble @Scobleizer

544K Followers 24K Following The best from ML/AI community | Ex-Microsoft, Rackspace, Fast Company | Wrote eight books about the future | Silicon Valley robots, holodecks, BCIs, & startups.

Machina Labs @MachinaLabs_

7K Followers 28 Following Unlocking Manufacturing through Robotics and Artificial Intelligence

Chief AI Officer @chiefaioffice

36K Followers 1K Following Track the latest funding in AI → https://t.co/NlbhFKCLNf

This is the official account for Fujian, a dynamic coastal province in southeast China. Follow us for all the latest news and info!

Hola Fujian @HolaFujian

67K Followers 2K Following This is the official account for Fujian, a dynamic coastal province in southeast China. Follow us for all the latest news and info!

@AnthropicAI, ONEAI OECD, co-chair @indexingai, writer @ https://t.co/3vmtHYkIJ2 Past: @openai, @business @theregister. Neural nets, distributed systems, weird futures

Jack Clark @jackclarkSF

89K Followers 5K Following @AnthropicAI, ONEAI OECD, co-chair @indexingai, writer @ https://t.co/3vmtHYkIJ2 Past: @openai, @business @theregister. Neural nets, distributed systems, weird futures

Sebastian Raschka @rasbt

359K 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).

Figuring out AI @allen_ai, open models, RLHF, fine-tuning, etc
Contact via email.
Writes @interconnectsai
Wrote The RLHF Book
Mountain runner

Nathan Lambert @natolambert

57K Followers 860 Following Figuring out AI @allen_ai, open models, RLHF, fine-tuning, etc Contact via email. Writes @interconnectsai Wrote The RLHF Book Mountain runner

CEO of @abacusai, the world’s first AI super assistant and general-purpose agent, DeepAgent, for enterprises and professionals. ex-GM, AWS and Google

Bindu Reddy @bindureddy

165K Followers 326 Following CEO of @abacusai, the world’s first AI super assistant and general-purpose agent, DeepAgent, for enterprises and professionals. ex-GM, AWS and Google

Physicist & cosmologist at UCSC. Co-Founder of Future of Life Institute, Foundational Questions Institute, and Metaculus. Apple out of the box. Pro-human.

Anthony Aguirre @AnthonyNAguirre

3K Followers 138 Following Physicist & cosmologist at UCSC. Co-Founder of Future of Life Institute, Foundational Questions Institute, and Metaculus. Apple out of the box. Pro-human.

AI Developer Experience @GoogleDeepMind | prev: Tech Lead at @huggingface, AWS ML Hero 🤗 Sharing my own views and AI News 🧑🏻‍💻 https://t.co/7IosdlNz22

Philipp Schmid @_philschmid

47K Followers 1K Following AI Developer Experience @GoogleDeepMind | prev: Tech Lead at @huggingface, AWS ML Hero 🤗 Sharing my own views and AI News 🧑🏻‍💻 https://t.co/7IosdlNz22

terminal of truths @truth_terminal

249K Followers 48 Following kundalini is a real girl

Brett Adcock @adcock_brett

297K Followers 16 Following Founder @Figure_robot (AI Robots), @Cover_thz (Weapon Detection), @ArcherAviation (NYSE: ACHR), Vettery ($100M Exit)

Talin @IamTalin

790 Followers 611 Following @chiefaioffice, ex- @_superagi, @summitpartners

Marc Andreessen 🇺�... @pmarca

1.9M Followers 27K Following First name Andreessen, last name Horowitz.

Nathan Benaich @nathanbenaich

62K Followers 34K Following solo member of superinvestment staff @airstreet @airstreetpress @stateofaireport @raais

Air Street Capital @airstreet

4K Followers 35 Following ai-first companies are all you need.

RAAIS is a global community of entrepreneurs, operators, and researchers who accelerate the science and applications of AI technology. Next summit: 12 June 2026

RAAIS @raais

1K Followers 74 Following RAAIS is a global community of entrepreneurs, operators, and researchers who accelerate the science and applications of AI technology. Next summit: 12 June 2026

Aidan Gomez @aidangomez

32K Followers 637 Following @cohere

Cohere builds secure, scalable, and private enterprise-grade AI solutions for real-world business problems. Join us: https://t.co/Yb2xItMObl

cohere @cohere

108K Followers 4 Following Cohere builds secure, scalable, and private enterprise-grade AI solutions for real-world business problems. Join us: https://t.co/Yb2xItMObl

Founder & CEO @leptonai (now part of NVIDIA). @UCBerkeley @Tsinghua_Uni Alumni. Built decaf, caffe, ONNX, PyTorch 1.0. Former Google/Meta/Alibaba.

Yangqing Jia @jiayq

18K Followers 325 Following Founder & CEO @leptonai (now part of NVIDIA). @UCBerkeley @Tsinghua_Uni Alumni. Built decaf, caffe, ONNX, PyTorch 1.0. Former Google/Meta/Alibaba.

CEO @LightningAI. Creator, PyTorch Lightning⚡, Former AI PhD student (pretraining, researcher) @metaAI @CILVRatNYU w @kchonyc @ylecun

William Falcon ⚡️ @_willfalcon

15K Followers 482 Following CEO @LightningAI. Creator, PyTorch Lightning⚡, Former AI PhD student (pretraining, researcher) @metaAI @CILVRatNYU w @kchonyc @ylecun

Cofounded and lead @PyTorch at Meta.
Also dabble in robotics at NYU.

AI is delicious when it is accessible and open-source.

Soumith Chintala @soumithchintala

253K Followers 1K Following Cofounded and lead @PyTorch at Meta. Also dabble in robotics at NYU. AI is delicious when it is accessible and open-source.

Lin Qiao @lqiao

5K Followers 239 Following Cofounder and CEO of @FireworksAI_HQ

🇦🇺 Co-founder: @AnswerDotAI & @FastDotAI ;
Prev: professor @ UQ; Stanford fellow; @kaggle president; @fastmail/@enlitic/etc founder
https://t.co/16UBFTX7mo

Jeremy Howard @jeremyphoward

261K Followers 6K Following 🇦🇺 Co-founder: @AnswerDotAI & @FastDotAI ; Prev: professor @ UQ; Stanford fellow; @kaggle president; @fastmail/@enlitic/etc founder https://t.co/16UBFTX7mo

Dwarak Rajagopal @dwarak

514 Followers 465 Following VP/Head of AI Eng @ Snowflake, ex-{Google, FB/Meta, Uber, Apple, AMD}

Co-founder of @ProjectJupyter and the Jupyter Notebook. Leader at @awscloud AI/ML. @PyTorch Foundation board member. Open-source, UX @NumFOCUS

Brian Granger @ellisonbg

9K Followers 1K Following Co-founder of @ProjectJupyter and the Jupyter Notebook. Leader at @awscloud AI/ML. @PyTorch Foundation board member. Open-source, UX @NumFOCUS

Author of PyTorch, Research Scientist at Google DeepMind. Currently working on Pallas, Mosaic and dex-lang. MIMUW CS & Math graduate. apaszke@types.pl

Adam Paszke @apaszke

11K Followers 527 Following Author of PyTorch, Research Scientist at Google DeepMind. Currently working on Pallas, Mosaic and dex-lang. MIMUW CS & Math graduate. [email protected]

Jerome Pesenti @an_open_mind

16K Followers 285 Following Founder @Sizzle_AI. Ex @MetaAI, @Benevolent_AI, @IBMWatson, co-founder Vivisimo (acq. by IBM).

Sonya Huang 🐥 @sonyatweetybird

17K Followers 1K Following Partner @Sequoia

François Chollet @fchollet

576K Followers 818 Following Co-founder @ndea. Co-founder @arcprize. Creator of Keras and ARC-AGI. Author of 'Deep Learning with Python'.

Mike Knoop @mikeknoop

23K Followers 346 Following co-founder @ndea and @zapier @arcprize

Gen AI Product Lead @ Google Voice Intelligence, ex-Meta | AI Product Academy Founder | Harvard Business School | ML PhD | TED | https://t.co/shM4v5xwZO.

Marily Nika @marilynika

Reid Hoffman @reidhoffman

778K Followers 674 Following Co-Founder, LinkedIn. Currently using AI to cure cancer faster @manas_co.

Chief Scientist, Google DeepMind & Google Research. Gemini Lead. Opinions stated here are my own, not those of Google. TensorFlow, MapReduce, Bigtable, ...

Jeff Dean @JeffDean

368K Followers 6K Following Chief Scientist, Google DeepMind & Google Research. Gemini Lead. Opinions stated here are my own, not those of Google. TensorFlow, MapReduce, Bigtable, ...

#1 Most Followed Voice in AI Business (2M followers). Former Amazon, IBM. Time100 AI. Fortune 500 and startup AI advisor, public speaker. AI-First courses in 🔗

Allie K. Miller @alliekmiller

74K Followers 2K Following #1 Most Followed Voice in AI Business (2M followers). Former Amazon, IBM. Time100 AI. Fortune 500 and startup AI advisor, public speaker. AI-First courses in 🔗

Professor @Wharton studying AI, innovation & startups. Democratizing education using tech
Book: https://t.co/CSmipbJ2jV
Substack: https://t.co/UIBhxu4bgq

Ethan Mollick @emollick

290K Followers 578 Following Professor @Wharton studying AI, innovation & startups. Democratizing education using tech Book: https://t.co/CSmipbJ2jV Substack: https://t.co/UIBhxu4bgq