Who is Gary Marcus AI expert - Google Search Gary Marcus is an American psychologist, cognitive scientist, and author, known for his research on the intersection of cognitive psychology, neuroscience, and artificial intelligence (AI). Gary Marcus co-founded Geometric Intelligenc -- a machine-learning startup. Geometric Intelligence was acquired by Uber in December 2016, and Gary Marcus became the director of Uber's AI efforts. Gary Marcus left Uber in March 2017. Gary Marcus co-founded a new startup, Robust.AI, with Rodney Brooks, iRobot co-founder and co-inventor of the Roomba. Robust.AI is an "off-the-shelf" machine-learning platform for adoption in autonomous robots by developers. Discovered as he was critical of GPT-5 launch in an interview on CNBC Friday morning, August 15, 2025.