I haven't surveyed, but one of my high schoolers says her peers use GenAI every day to do their homework. It's particularly easy for math because they just photograph the problem and get the answer. My daughter even showed me how to do it with Snapchat's internal AI. It worked remarkably well.
I do wonder what happens on test day.
My now-college freshman failed AP Calc in HS. He told me "I did the math: you can pass the class just taking the tests, wo doing the homework. The error in my calculation is that you cannot pass the tests wo doing the homework." So, hopefully they learn the same lesson sooner rather than later.
Disaster, I assume. That was the primary point I made to my 14yo.
Yes -- I've seen and increasing number of students with near perfect homework scores and absolutely dismal exams in intro calculus and stats classes in the last year or so. Pre AI, good homework scores were a pretty reliable predictor B-ish or better exams, but not so much now.
Most worrisome, IMHO, was how easy it was. It saves a lot of time for those who just want to be done with homework.