Install HunyuanVideo 1.5 workflow and models in ComfyUI
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Step-by-step guide to updating ComfyUI, downloading the required workflows, and installing the necessary models (Text Encoder, Diffusion, VAE).
Hardware Requirements
Running the original base model for HunyuanVideo 1.5 requires a CUDA GPU with a minimum of 14 GB of VRAM.
Storage Warning
The diffusion models are significant in size. The standard model and the 1080p upscaler are approximately 15.5 GB each. Ensure sufficient disk space before downloading.
Workflow Template Availability
While ComfyUI has a native 'Templates' browser, HunyuanVideo 1.5 may not appear there immediately. If searching 'Hunyuan' in the Templates menu yields no results, you must manually download and drag-and-drop the JSON workflows as described in the steps.
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