I was prepared to be totally underwhelmed but after just a few questions I can tell that 5.1 Thinking is all I am going to ever use. Maybe it is just the newness but I quite like how it responded to my standard list of prompts that I pretty much always start with on a new model.

I really was ready to take a break from my subscription but that is probably not happening now. I did just learn some nice new stuff with my first session. That is all that matters to me and worth 20 bucks a month. Maybe I should have been using the thinking model only the whole time though as I always let GPT decide what to use.