“Exactly the Most Exciting Time”: Penn Engineering’s Chris Callison-Burch on 25 Years of AI Innovation

AI / November 21, 2025

Callison-Burch traces his entry into AI to 1999, when a visiting-day presentation at Stanford during his senior year of high school introduced him to the Symbolic Systems Program—an interdisciplinary blend of computer science, linguistics, psychology, and philosophy centered on how humans and machines communicate. During his undergrad at Stanford, Callison-Burch immersed himself equally in linguistics and computer science, drawn to the challenge of enabling computers to use human language with human-level proficiency.

Between undergrad and graduate school, he joined a company during the early internet boom, licensing machine translation software from multiple vendors and building a translation system that could scale to the internet. When his proposal for the company to build its own machine translation systems using statistical machine learning was declined, he pivoted to graduate research.

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