If you're just starting to use ComfyUI and feel messy in the beginning. You can drag and drop this file into your workflow. It can only Upscale no fancy stuff and good for beginner to start.

I already have installed Automatic1111 and all checkpoint models in the Automatic1111 web-ui folders.

I like to clean up to have clean workflow.

In the ComfyUI setting, Link render mode choose : straight

If you don't have ComfyUI yet, download from

https://github.com/comfyanonymous/ComfyUI

or install in the command line

git clone https://github.com/comfyanonymous/ComfyUI.git

Download base checkpoint model SDXL. Comfy run smoother than Automatic1111 for SDXL version for me imo :-\

https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0/tree/main

or

Checkpoint VAE version

https://huggingface.co/madebyollin/sdxl-vae-fp16-fix/tree/main

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I use Automatic1111 folder to store all the check point and I set file path to use in the ComfyUI

Go to ComfyUI folder

edit file "extra_model_paths.yaml.example" by text editor

edit base_path: YOUR STABLE DIFFUSION FOLDER PATH

Copy your Automatic1111 web-ui folder file path and replace it.

save and rename extra_model_paths.yaml

run run_nvidia_gpu.bat if you use Nvidia GPU