With help of LCM LoRA and Kohya Deep Shrink, now you can generate 2048*2048 image from noise with no issue in just 6 steps

WARNING: directly 2048*2048 generation is VRAM hungry, tune it down if you have limited resources

Other useful CustomNodes using:

• https://github.com/Derfuu/Derfuu_ComfyUI_ModdedNodes/ for convenient input nodes

• https://github.com/WASasquatch/was-node-suite-comfyui/ for loading model with name and advance image save

• https://github.com/marhensa/sdxl-recommended-res-calc/ for SDXL optimal size calculation

• https://github.com/twri/sdxl_prompt_styler/ for SDXL styling