ComfyUI Wan 2.1 Vace Video2Video With Long Video Length Generation - Tutorial

We can say bye to Viggle, using ComfyUI Wan 2.1 Vace Video2Video With Extended Long Video Length Generation.

Learn how to create long-length AI videos using WAN 2.1 video2video generation with advanced control net techniques! This tutorial reveals how to stitch seamless 15-30 second clips by mastering overlap frames, multi-character control, and chunk-based sampling. Discover workflows for dance motions, movie scenes, and talking avatars—all while optimizing for GGUF quantization and multi-GPU setups. Whether you're animating robot dances or complex multi-character scenes, this guide unlocks professional-grade AI video production at scale.

Who is this content suitable for?
AI video creators, animators, VFX artists, and developers working with WAN 2.1, ControlNet (e.g: DW Pose, Depth Anything V2), and ComfyUI for long-form video generation.

Why it matters:
Traditional AI video tools struggle with long durations and multi-character consistency. This method solves both by dividing videos into optimized chunks and using overlap frames for smooth stitching—ideal for music videos, social media content, and other AI video projects.

Another way to apply long video length is img2vid, which I have demonstrate in this tutorial:    • ComfyUI Wan MultiTalk Video2Video With Lip...  

Basic Workflow , Links , and info in this post: www.patreon.com/posts/133333679/?utm_source=youtub…

For Patreon Supporters: www.patreon.com/posts/133334531/?utm_source=youtub…

For Tool nodes and Wan

github.com/kijai/ComfyUI-WanVideoWrapper

github.com/kijai/ComfyUI-KJNodes

github.com/Fannovel16/comfyui_controlnet_aux

github.com/pythongosssss/ComfyUI-Custom-Scripts

github.com/Kosinkadink/ComfyUI-VideoHelperSuite

github.com/chflame163/ComfyUI_LayerStyle

For Low VRAM GGUF

github.com/city96/ComfyUI-GGUF

github.com/neuratech-ai/ComfyUI-MultiGPU

FusionX Wan VACE Model :

Safetensors

huggingface.co/QuantStack/Wan2.1_T2V_14B_FusionX_V…

GGUF

huggingface.co/QuantStack/Wan2.1-14B-T2V-FusionX-V…



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