[screcth]

Well, you could pick only 10% of the class for one on ones. Pick that 10% randomly or based on your intuition on the authenticity of their work.

That threat may be enough to dissuade students from cheating with AI.

[lnsru]

Pick 4 students per slot for oral examination and bring an assistant. That’s how my last exam worked. Assistant went through standard questionary and the main lector asked complex questions. The group of 50 was processed in a day with official grades and paperwork.