Gary Marcus is a professor emeritus of psychology and neural science at New York University who co-founded Geometric Intelligence and has been a prominent critic of deep learning and large language models. Gary Marcus's Twitter Score is 134 out of 1000 (an Excellent rating) as of October 2026, ranking #4,557 (top 1%) among 493,668 tracked accounts.
Gary Marcus co-founded Geometric Intelligence, which was acquired by Uber in December 2016 to form a central AI lab. He previously served as director of Uber AI Labs and was formerly a senior advisor to Uber, departing the advisory role after leaving the lab in 2017. Gary Marcus also co-founded Robust. AI, though he left that venture in 2021.
Gary Marcus has been a consistent advocate for neurosymbolic AI and world models, and has warned about AI hallucinations since 2001. He authored the paper Deep Learning: A Critical Appraisal in 2018 and followed it with The Next Decade in AI: Four Steps Towards Robust Artificial Intelligence in 2020. He has also testified before the US Senate on AI-related issues and has written six books, including a newsletter, Marcus on AI.
Gary Marcus has published 63,679 posts on the platform and has 250,733 followers as of October 2026. He has been mentioned by 289 accounts, with 1,497 total mentions.
Who follows Gary Marcus on X?
The accounts that follow Gary Marcus include 616 founders, 127 angel investors, 175 influencers and 9 VCs. Among his notable followers are Threadguy, David Sacks, Ryan Selkis, Jesse Powell, Murad and Loomdart.