User @ivanfioravanti says they’ve been using the model intensely in the days before 2026-06-16 and finds it excellent for both design and coding. Michael Guo amplifies this by asserting GLM-5.2 surpasses GPT-5.5, narrowing the lead of Anthropic/OpenAI and ranking just behind Fable 5 and Opus 4.8.
@ivanfioravanti reports heavy recent use (last days) and says the model “really rocks,” praising its performance on design as well as coding (posted 2026-06-16).
Using it like crazy in the last days and it really rocks! Even on design is great, not only on coding.
Michael Guo (@Michaelzsguo)
What?!
GLM-5.2 beats GPT-5.5 and has closed the gap with Anthropic/OpenAI?
It now only trails Fable 5 and Opus 4.8.
— https://nitter.net/Michaelzsguo/status/2067008306481172593#m