I've just put GLM 5.2 through my __qualitative__ benchmark. I was quick enough to capture Claude Fable, so now you can compare GLM5.2 vs Claude Fable vs Opus 4.8 vs Chat GPT 5.5

https://generative-ai.review/2026/06/glm5-2-from-z-ai-vs-cla...

I've structured it side-by-side. You can clearly see where the private models excel, and where GLM 5.2 is still really good.