As a memory-poor user (hence the 8gb vram card), I consider Q8+ to be is higher precision, Q4-Q5 is mid-low precision (what i typically use), and below that is low precision
It's a webp animation. Maybe your client doesn't display it right, i'll replace it with a gif
Regarding your other question, I tend to see better results with higher params + lower precision, versus low params + higher precision. That's just based on "vibes" though, I haven't done any real testing. Based on what I've seen, Q4 is the lowest safe quantization, and beyond that, the performance really starts to drop off. unfortunately even at 1 bit quantization I can't run GLM 4.6 on my system
The link is a proxied image link for some reason.