ComfyUI-VAE-Utils

ComfyUI-VAE-Utils
★ 163

VAE上采样扩展节点兼容性
为 ComfyUI 提供扩展的 VAE 加载与使用功能，支持 Wan upscale VAE，弥补基础版对部分 VAE 的兼容空白。
💡 在 ComfyUI 中加载并使用不被基础版支持的 VAE 进行上采样。
🍴 11 Forks💻 Python🔄 2026-02-05
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https://pan.quark.cn/s/b45acaa3411d
side by side comparison
latent upscale comparison
WanVideoWrapper latent rescale
📄 README

Nodes for loading and using VAEs in ways not supported by base ComfyUI. Currently supports Wan upscale VAE, more may be added later as needed.

Install

cd custom_nodes
git clone https://github.com/spacepxl/ComfyUI-VAE-Utils

That’s it! No extra requirements outside of what ComfyUI already uses.

Models

Wan2.1 VAE 2x imageonly real v1

Nodes

Load VAE (VAE Utils)

Direct replacement for native Load VAE node, but with added input/output channel detection for Wan2.1 VAE

VAE Decode (VAE Utils)

Decode latents with optional auto detected upscaling, and optional tiling

Latent Upscale (VAE Utils)

Simple neural latent upscaler (right), far from optimal but much better than naive bilinear/bislerp interpolation (left).

Currently supported: Wan2.1 2x

Workflows

workflow/workflow_wan_t2i_upscale2x.png

IMPORTANT

To use native VAE decoding with latents from kijai/ComfyUI-WanVideoWrapper, you need to un-normalize the latents first using this node: