Recommended Parameters:
DDPM > Euler > Euler a (Is DDPM, not DDIM)
Euler (a):
CFG: 4~7
Steps: 20~30
Hi-res: Upscale 1.5x or higher, Denoising strength 0.15–0.45
DDPM:
CFG: 5.5 (around 5.5)
Steps: 40 (around 40)
Hi-res: Upscale 1.5x or higher, Denoising strength 0.15–0.45