Comfyui Image Gen tests (Windows / Linux)

[sreeram-11]

IMPORTANT NOTE
Updated all workflow files to Python 3.12 for compatibility with Linux ROCm SDK + ROCm torch wheels.

User Actions:

1. Ensure the latest / required AMD GPU driver is installed
2. For Windows, install the ComfyUI Desktop installer from here.
3. Download the required ComfyUI models from:

• https://huggingface.co/Comfy-Org/z_image_turbo/resolve/main/split_files/text_encoders/qwen_3_4b.safetensors
• https://huggingface.co/Comfy-Org/z_image_turbo/resolve/main/split_files/vae/ae.safetensors
• https://huggingface.co/Comfy-Org/z_image_turbo/resolve/main/split_files/diffusion_models/z_image_turbo_bf16.safetensors

4. On Windows, place the downloaded models at:

•  C:\ModelCache\ComfyUI\models\diffusion_models\z_image_turbo_bf16.safetensors 
  

•  C:\ModelCache\ComfyUI\models\text_encoders\qwen_3_4b.safetensors
  

•  C:\ModelCache\ComfyUI\models\vae\ae.safetensors    
  

5. On Linux, place the models at:

• /opt/model_cache/ComfyUI/models/diffusion_models/z_image_turbo_bf16.safetensors
  

• /opt/model_cache/ComfyUI/models/text_encoders/qwen_3_4b.safetensors
  

• /opt/model_cache/ComfyUI/models/vae/ae.safetensors
  

Windows - Test Validate:

1. ComfyUI Desktop workspace present (successful installation of ComfyUI through the Desktop installer)
2. Install comfyui-frontend-package into workspace venv
3. ComfyUI backend usable
4. Required model files exist on disk
5. ComfyUI server can be started on port 8188
6. Z-Image workflow JSON can be submitted to ComfyUI (API) and can actually produce output images
7. An output PNG image gets saved to output/

LINUX - Test Validate:

1. ComfyUI git repo can be cloned or latest changes can be pulled if already cloned
2. GPU is visible / driver is present
3. A virtual env with python 3.12 can be created
4. ComfyUI requirements can be installed into the virtual env
5. ROCm SDK wheels + ROCm torch wheels can be installed into the virtual env
6. Verify torch.cuda.is_available() is True
7. Required model files exist on disk
8. ComfyUI server can be started on port 8188
9. Z-Image workflow JSON can be submitted to ComfyUI (API) and can actually produce output images
10. An output PNG image gets saved to output/