The widespread adoption of Generative Artificial Intelligence tools by students poses a challenge to teachers in Higher Education. This study aimed to explore the nature of teacher agency in a setting where students were making extensive use of Large Language Models. The study was conducted in a research-intensive university in the UK, adopting a sequential mixed methods research design. It found that challenges entailed in university teaching can helpfully be framed in terms of a relationship between the agency of teachers and the agency of students, even as this relationship is subject to cultural influences. Given a reflexive basis for agency, this framing underscores the importance of dialogue between teachers and students, even as the uncertainty generated by Large Language Models undercuts the conditions which make the dialogue possible.
