Yejin Choi is the Dieter Schwarz Foundation Professor and Senior Fellow at Stanford's Computer Science and HAI. She is a MacArthur Fellow, AI2050 Senior Fellow, and was named to Time100 Most Influential People in AI (2023, 2025). Choi has received 2 Test-of-Time Awards and 10 Best/Outstanding Paper Awards at top AI conferences. She was a main stage speaker at TED 2023 and has delivered keynotes at several AI conferences including NeurIPS, ICLR, CVPR, ACL, and AAAI. Her research focuses on democratizing generative AI through smaller yet powerful language models, scaling intelligence via smarter algorithms, pluralistic alignment, and AI for science and social good.