Fei-Fei Li is an AI researcher, professor, and entrepreneur best known as the inventor of ImageNet and the ImageNet Challenge, benchmarks that shaped the course of modern deep learning and computer vision. Fei-Fei Li's Twitter Score is 244 out of 1000 (an Excellent rating) as of September 2026.
Fei-Fei Li co-founded World Labs, a frontier AI research and product company building spatial intelligence and world models for the 3D world, alongside Justin Johnson, Christoph Lassner, and Ben Mildenhall, and serves as its CEO. World Labs launched publicly in September 2024, announcing $230 million in funding from Andreessen Horowitz, NEA, Radical Ventures, and other backers. Its first product, Marble, generates spatially consistent, high-fidelity, persistent 3D worlds from a single image, video, or text prompt.
Fei-Fei Li is the Sequoia Capital Professor at Stanford University and Co-Director of the Stanford Institute for Human-Centered Artificial Intelligence, with research spanning deep learning, robotic learning, spatial intelligence, and ambient intelligence for healthcare delivery. She is a partner at Radical Ventures, previously worked at Google and Google Cloud, and formerly served as Director of the Stanford Artificial Intelligence Lab. She also co-founded AI4ALL, a nonprofit dedicated to broadening access and inclusion in AI education, where she serves as Chairperson of the Board.
Fei-Fei Li has been active on the platform since 2010 and ranks #1,620 (top 0.5%) out of 486,860 accounts tracked, with 1,040,865 followers as of September 2026 and 3,090 posts published. She has been mentioned by 276 accounts, with 792 total mentions.
Who follows Fei-Fei Li on X?
Fei-Fei Li's following reflects broad interest from across the AI research and technology community. The accounts that follow Fei-Fei Li include 1,178 founders, 331 angel investors, 240 influencers and 32 VCs. Among them are Balaji, Marc Andreessen, Sam Altman, vitalik.eth, Laura Shin and Andrew Kang.