Putin won’t use nuclear weapons and he can’t realistically escalate the war.
That’s a huge bet to make. The whole point of nuclear deterrence is so nuclear powers don’t think to directly engage each other in any serious way. No one is anxious to call a nuclear bluff, especially since this is basically win or die for Putin.
You can also play with it to try and get closer to correct. I had problems with getting an Excel macro working and getting unattended-updates working on my pihole. GPT was wrong at first, but got me partly there and I could massage the question and Google and get closer to the right answer. Without it, I wouldn’t have been able to get any of it, especially with the macro.