> I did not personally test the open weight models beyond the old Qwen 3.6 27B, which produced unusably bad results for me.

So you don't have much perspective on things, it seems. Let me introduce you to the GLM 5.2 and then 5.3/5.3 flash series of... "oh, wow, I should have bought some RTX PRO 6000's while they were 'cheap'" stage of progression.

As someone carrying multiple max subscriptions to both claude and codex - primary workhorse is glm 5.3 flash running on rented GPUs for less than a latte/hr.

I also found qwen 3.6 27B nearly useless for my own needs. DS4 flash 0731 and then 4.1 have been nearly as eye opening as glm 5.3 flash, but have their own warts.

Why use GLM 5.3 Flash when you also have access to Astra, Sol, Fable?

Or I guess the other way around, if GLM 5.3 Flash is so good, why Claude and Codex?