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This workflow is designed to be simple and easy to use. It perfectly fills the screen, so you don't have to move the UI around at all.

Requirements:
ComfyUI version: 0.3.29
GGUF Loader Node: https://github.com/city96/ComfyUI-GGUF
GGUF Models: https://huggingface.co/city96/HiDream-I1-Dev-gguf I could run the Q_8 model on my RTX 3080 10GB. For lower VRAM, please select Q_6, Q_4_K_M, ...
Text Encoders: https://huggingface.co/Comfy-Org/HiDream-I1_ComfyUI/tree/main/split_files/text_encoders
VAE: https://huggingface.co/HiDream-ai/HiDream-I1-Dev/blob/main/vae/diffusion_pytorch_model.safetensors or https://huggingface.co/black-forest-labs/FLUX.1-dev/blob/main/ae.safetensors

Recommended Settings:
Steps: 15-20
CFG: 1-2
Sampler: DDIM
Scheduler: ddim_uniform
Shift: 3-5

Ultimate Upscaler

Steps: 7-15
CFG: 1-2
Sampler: DDIM
Scheduler: ddim_uniform
Denoise: 0.15-0.4