This workflow combines the positive attributes from Chroma and Z-Image without them stepping on each other.

Chroma generates the based image, z-image details the image without destroying it, then it upscales it using Ultra Flux VAE, finally it is detailed further by Z-image in the new high resolution.

Credits:

The original workflow came from https://github.com/vrgamegirl19/. However the original workflow will absolutely destroy the image, specifically any anatomical detail.

Original Workflow(s):

https://github.com/vrgamegirl19/comfyui-vrgamedevgirl/tree/main/Workflows/Z-ImageUpscale

Ultra Flux VAE:

https://huggingface.co/Owen777/UltraFlux-v1/resolve/main/vae/diffusion_pytorch_model.safetensors?download=true

custom_nodes:

erosdiffusion-eulerflowmatchingdiscretescheduler

controlaltai-nodes

RES4LYF

was-ns

rgthree-comfy

ComfyUI_JPS-Nodes