> ## Documentation Index > Fetch the complete documentation index at: https://dripart-chore-sync-comfy-api-v2-spec-d5155ac.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # ComfyUI Wan2.1 VACE Video Examples > This article introduces how to complete Wan VACE video generation examples in ComfyUI As we have made adjustments to the template and added related usage and instructions for CausVid LoRA, this document needs to be updated and requires some preparation time. Until then, please refer to the notes in the template for usage. ## About VACE VACE 14B is an open-source unified video editing model launched by the Alibaba Tongyi Wanxiang team. Through integrating multi-task capabilities, supporting high-resolution processing and flexible multi-modal input mechanisms, this model significantly improves the efficiency and quality of video creation. The model is open-sourced under the [Apache-2.0](https://github.com/ali-vilab/VACE?tab=Apache-2.0-1-ov-file) license and can be used for personal or commercial purposes. Here is a comprehensive analysis of its core features and technical highlights: * Multi-modal input: supports multiple input forms including text, images, video, masks, and control signals * Unified architecture: single model supports multiple tasks with freely combinable functions * Motion transfer: generates coherent actions based on reference videos * Local replacement: replaces specific areas in videos through masks * Video extension: completes actions or extends backgrounds * Background replacement: preserves subjects while changing environmental backgrounds Currently VACE has released two versions: 1.3B and 14B. Compared to the 1.3B version, the 14B version supports 720P resolution output with better image details and stability. | Model | 480P | 720P | | ----------------------------------------------------------- | ---- | ---- | | [VACE-1.3B](https://huggingface.co/Wan-AI/Wan2.1-VACE-1.3B) | โœ… | โŒ | | [VACE-14B](https://huggingface.co/Wan-AI/Wan2.1-VACE-14B) | โœ… | โœ… | Related model weights and code repositories: 1.3B model weights on Hugging Face 14B model weights on Hugging Face VACE source code and documentation Official project homepage with examples Make sure your ComfyUI is updated. * [Download ComfyUI](https://www.comfy.org/download) * [Update Guide](/installation/update_comfyui) Workflows in this guide can be found in the [Workflow Templates](/interface/features/template). If you can't find them in the template, your ComfyUI may be outdated. If nodes are missing when loading a workflow, possible reasons: 1. You are not using the latest ComfyUI version (Nightly version) 2. Some nodes failed to import at startup * [Cloud](https://cloud.comfy.org) will update after ComfyUI stable release. So, if you find any core node missing in this document, it might be because the new core nodes have not yet been released in the latest stable version. Please wait for the next stable release. ## Model Download and Loading in Workflows Since the workflows covered in this document all use the same workflow template, we can first complete the model download and loading information introduction, then enable or disable different inputs through bypassing different nodes to achieve different workflows. The model download information is already embedded in the workflow information in specific examples, so you can also complete the model download when downloading specific example workflows. ### Model Download **Diffusion Models** VACE 14B diffusion model (recommended, \~32GB). Place in ComfyUI/models/diffusion\_models/ VACE 1.3B diffusion model (lighter, \~7GB). Place in ComfyUI/models/diffusion\_models/ If you have used Wan Video related workflows before, you have already downloaded the following model files. **VAE** Wan VAE model. Place in ComfyUI/models/vae/ **Text Encoders** (choose one version) Full precision text encoder (higher quality, larger size). Place in ComfyUI/models/text\_encoders/ FP8 text encoder (lower VRAM usage). Place in ComfyUI/models/text\_encoders/ File save location: ``` ๐Ÿ“‚ ComfyUI/ โ”œโ”€โ”€ ๐Ÿ“‚ models/ โ”‚ โ”œโ”€โ”€ ๐Ÿ“‚ diffusion_models/ โ”‚ โ”‚ โ””โ”€โ”€โ”€ wan2.1_vace_14B_fp16.safetensors โ”‚ โ”œโ”€โ”€ ๐Ÿ“‚ text_encoders/ โ”‚ โ”‚ โ””โ”€โ”€โ”€ umt5_xxl_fp8_e4m3fn_scaled.safetensors # or umt5_xxl_fp16.safetensors โ”‚ โ””โ”€โ”€ ๐Ÿ“‚ vae/ โ”‚ โ””โ”€โ”€ wan_2.1_vae.safetensors ``` ### Model Loading Since the models used in the workflows covered in this document are consistent, the workflows are also the same, and only the nodes are bypassed to enable or disable different inputs. Please refer to the following image to ensure that the corresponding models are correctly loaded in different workflows. Wan2.1 VACE Model Loading 1. Make sure the `Load Diffusion Model` node has loaded `wan2.1_vace_14B_fp16.safetensors` 2. Make sure the `Load CLIP` node has loaded `umt5_xxl_fp8_e4m3fn_scaled.safetensors` or `umt5_xxl_fp16.safetensors` 3. Make sure the `Load VAE` node has loaded `wan_2.1_vae.safetensors` ### How to toggle Node Bypass Status When a node is set to Bypass status, data passing through the node will not be affected by the node and will be output directly. We often set nodes to Bypass status when we don't need them. Here are three ways to toggle a node's Bypass status: Toggle Bypass 1. After selecting the node, click the arrow in the indicator section of the selection toolbox to quickly toggle the node's Bypass status 2. After selecting the node, right-click the node and select `Mode` -> `Always` to switch to Always mode 3. After selecting the node, right-click the node and select the `Bypass` option to toggle the Bypass status *** ## 1. VACE Text-to-Video **What it does:** Transform text descriptions into high-quality videos using the Wan2.1 VACE 14B model. Supports both 480p and 720p resolution.

Wan2.1 VACE Text to Video

Transform text descriptions into high-quality videos. Supports both 480p and 720p with VACE-14B model. Wan2.1 VACE Text to Video workflow preview Open in Comfy Cloud Download JSON or search "Wan2.1 VACE Text to Video" in Template Library