Candidates who rely on AI seem to just be totally turning their brains off. At least a candidate who was embellishing in the old days would try to BS if they were caught. They could try and fill in the blanks. These candidates give plausible-sounding answers and then truly just give up and say "ummm" when you reach the end of their preparation.
I've been interviewing for 10+ years across multiple startups and this was never a problem before. Even when candidates didn't have a lot of relevant experience we could have a conversation and they could demonstrate their knowledge and problem-solving skills. I've had some long, painful sessions with a candidate who was completely lost but they never just gave up completely.
Developers I've worked with and interviewed who rely on AI daily are just completely helpless without it. It's amazing how some senior+ engineers have just lost their ability to reason or talk about code.