This is a simple workflow to run copaxTimelessxl_xplus1-Q8_0.gguf and model copaxTimelessxl_xplus1-Q4 on comfyUI.
Link model: https://civitai.com/models/118111/copax-timelessxl
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Document GGUF model: https://huggingface.co/city96/FLUX.1-dev-gguf
Documents node ComfyUI-GGUF: https://github.com/city96/ComfyUI-GGUF?tab=readme-ov-file