VACE Wan2.1 Video2Video | ComfyUI Installation Guide
🕑 Added 2025-04-11 04:00:38 +0000 UTC
🎓Beginner Tutorial: https://youtu.be/ufLMEQMeQDY
Before proceeding with installation, ensure you have:
ComfyUI installed (Tutorial)
A compatible GPU (NVIDIA with at least 8GB, other GPUs might work but it's not guaranteed)
Download
Video Model: Place inside ComfyUI\models\diffusion_models
rename to: "vace_preview_fp32.safetensors"
VAE: Place inside ComfyUI\models\vae
Text encoder: Place inside ComfyUI\models\text_encoders
🚀Advanced Tutorial: https://www.patreon.com/posts/advanced-video-2-127430452
*Workflows attached
💡 Need Help?
Consider upgrading your Patreon membership! Members get access to private support channels, where I’ll personally assist as much as I can to help you solve any problems.
🔗 https://discord.gg/b2jg5JgYgz
Comments
editor pc
it gave me generation once did everything but now it keeps stopping at video combine. it heeps stopping . tried it in 3 different device. same issue. please help
MDMZ
You might need to install it manually using the command window, i put instructions on that under the comfyui installation video
editor pc
i cant see the manager button or anything on the right side
MDMZ
what type of issues ?
Nagarajan S
I'm having issues from the output 😕
MDMZ
check the logs, it could be running slowly in the background or running errors
J
when I run it it gets to the WanVideo Sampler and then just goes idle
MDMZ
you dont have to rename it, just make sure you select the correct model file from the node, the name doesnt matter
Marcus Lam
I am using Comfy workflow on ThinkDiffusion. The issue is that it does not allow me to upload a file larger than 2GB from my computer. The video model file to be renamed to "vace_preview_fp32.safetensors" is 6.7GB. So, I cannot rename it and upload. The only way is to copy the file over to ThinkDiffusion via a URL. But there is no option to rename the file with this option. Any workaround?
MDMZ
thanks for the idea
kally
Can you do a tutorial for video to video but with specific anime character lora? Would be fantastic
MDMZ
did you try playing with the prompts? and don't drop the resolution too low
malcolm sutherland
I have got it working, but my results look so bad. they are nowhere near as clean as yours - I have tried a bunch of different settings / samplers and videos / images, but it always looks like soup. any suggestions? (im on a 3060 with 12GB - not getting any memory errors)
shawn huang
Help!!! Please.........WanVideoVACEEncode shape '[41, 66, 8, 120, 8]' is invalid for input of size 21254400
Rob Shepps
Keep getting "WanVideoModelLoader Invalid WanVideo model selected" error