AI has quickly become ubiquitous at Harvard. According to The Crimson’s 2025 Faculty of Arts and Sciences survey, nearly 80% of instructors reported encountering student work they suspected was AI-generated—a dramatic jump from just two years ago. Despite this, faculty confidence in identifying AI output remains low. Only 14% of respondents felt “very confident” in their ability to distinguish human from AI work. Research from Pennsylvania State University underscores this challenge: humans can correctly detect AI-generated text roughly 53% of the time, only slightly better than flipping a coin.
