You can always interview in person. This has often been the norm, after some initial screening. I think it's the best option.
Even remotely, normally a coding interview isn't a candidate typing things for 45 min on a screen. There are interactions, follow-up questions, discussions about trade-offs and so on... I suppose it's possible for a good candidate to cheat and get some extra points, but the interview isn't broken yet.
You could also let the candidate use AI, and still gather all the relevant signals.
Even remotely, normally a coding interview isn't a candidate typing things for 45 min on a screen. There are interactions, follow-up questions, discussions about trade-offs and so on... I suppose it's possible for a good candidate to cheat and get some extra points, but the interview isn't broken yet.
You could also let the candidate use AI, and still gather all the relevant signals.