Coursework is a larger component of assessments for the more than 5,000 pupils in the UK who sit the International Baccalaureate (IB) each year.
An IB spokesman said: “The use of ChatGPT or any other AI tool is against the IB’s academic integrity policy, and we expect all of our schools to discuss with students’ the various types of academic misconduct.
“Academic integrity is an essential aspect of teaching and learning in IB programmes where the action is based on inquiry and reflection. From a young age, IB students are expected to be able to distinguish between what is right and what is wrong.
“To this end, all students participating in IB programmes are expected to act honestly, responsibly and ethically.”
Some schools are considering asking pupils to write essays in classrooms and do research as homework to reduce the risk of cheating.