I'm comparing with GPT5.5 on Codex and it's not even a competition. GLM takes way longer and eats a lot of tokens getting work done, it's easy to rack up a big bill on openrouter. I tried the $20 plan from ollama, too, and ate through half a month of budget in a few hours and blew my daily limit twice and still had to get codex to complete it -- which it did with only 10% of my monthly limit remaining.

GLM is promising but it's pretty costly, all things considered.