Or you just design an interview process that weeds out things that can be done with AI.
We have had people use AI in our interviews and fail miserably. We have always allowed people to search and use other resources during our interviews, and made the decision that using chat was fine as long as we could see what you were doing.
Only problem I see is this can also be gamed with "human" help. Say the candidate has an ear piece
If its for a high paying position I can see someone doing this for like ~$10k (contigent on them getting an offer) which is not bad for likely a few hours work.
Or some alternative, there is some trusted third party monitoring the candidate.