Chris Callison-Burch is an associate professor of Computer and Information Science at the University of Pennsylvania. His course on Artificial Intelligence has one of the highest enrollments at the university with over 500 students taking the class each Fall.  He is best known for his research into natural language processing. His current research is focused on applications of large language models to long-standing challenges in artificial intelligence.  Prof. Callison-Burch has more than 100 publications, which have been cited over 25,000 times.  On May 17, 2023, Prof. Callison-Burch testified before congress about the relationship of generative AI and Copyright Law.