512 vs 768 about stablesr

[Skumball]

Hi. Please find attached an example image showing a comparison. The first 768 example shows the issue. If you look at the arm holding the camera, the yellow shirt and the grey-coloured shirt on the right side, it shows a dotted texture has been placed on top. By contrast the 512 model does a good job of adding simple noise to this area in both cases. I think this becomes most evident when trying to scale up low quality images as per this example, but I may be wrong. This also does not happen every time and might be seed-based also, as the second 768 example is quite good (although the arm still shows a slight texture to it).

[IceClear]

Hi～ thanks for your interest. Do you mind sharing the failure case for 768 model？Without prompts, is there still artifacts？Maybe we can further improve it if possible.