Big ASP v2 is an incredible feat, but it's a bit unstable and needs some merging to get the best out of it.
I've been doing extensive testing of merging various checkpoints with various recipes and will upload the best results here.
Usage guide
Please refer to this workflow:
https://civarchive.com/articles/9599/sdxl-hqhr-high-quality-high-resolution-worlfow
Note like all bigASP based models it's a bit unstable and sensitive to parameters. stick closely to the below.
Sampling
PAG ( Perturbed attention guidance ) around 1.8 is a must. This is only implemented properly in ComfyUI and SwarmUI unfortunately
CFG: 2 to 3 ( I recommend 2.5-2.8 )
55 steps
DPMPP 2M SDE sampler
Karras scheduler
Use DMD2 lora for upscaling ( see workflow link
Description
A small but significant improvement on bigX_tasty in prompt following and details.
I recommend a very slightly lower CFG on this one ( I use 2.8 on tasty and 2.5 for this one ).
FAQ
Comments (1)
bigASP is great but this model is what finally unlocks it fully. I was struggling with it so much until I followed your setup here. I'll post generated comfyui images here for anyone else looking to import the workflow with metadata.