re: "So, first, by no measure is GLM5.2 as good as Opus."

I accept that for you and your work this is true.

I have a different experience: for a month I paid big money for Opus and got a lot done. Now I am gorging on GLM 5.2 running on Fireworks.ai and I am also getting a lot done for about 15% of the money.

Everyone should do their own evals on their own work.