ComfyUI Hunyuan Video Examples

Hunyuan Video series is developed and open-sourced by Tencent, featuring a hybrid architecture that supports both Text-to-Video and Image-to-Video generation with a parameter scale of 13B.

Technical features:

• Core Architecture: Uses a DiT (Diffusion Transformer) architecture similar to Sora, effectively fusing text, image, and motion information to improve consistency, quality, and alignment between generated video frames. A unified full-attention mechanism enables multi-view camera transitions while ensuring subject consistency.
• 3D VAE: The custom 3D VAE compresses videos into a compact latent space, making image-to-video generation more efficient.
• Superior Image-Video-Text Alignment: Utilizing MLLM text encoders that excel in both image and video generation, better following text instructions, capturing details, and performing complex reasoning.

You can learn more through the official repositories: Hunyuan Video and Hunyuan Video-I2V.

This guide will walk you through setting up both Text-to-Video and Image-to-Video workflows in ComfyUI.

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Shared Models for All Workflows

The following models are used in both Text-to-Video and Image-to-Video workflows. Please download and save them to the specified directories:

• clip_l.safetensors
• llava_llama3_fp8_scaled.safetensors
• hunyuan_video_vae_bf16.safetensors

Storage location:

ComfyUI/
├── models/
│   ├── text_encoders/
│   │   ├── clip_l.safetensors
│   │   └── llava_llama3_fp8_scaled.safetensors
│   ├── vae/
│   │   └── hunyuan_video_vae_bf16.safetensors

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Hunyuan Text-to-Video Workflow

Hunyuan Text-to-Video was open-sourced in December 2024, supporting 5-second short video generation through natural language descriptions in both Chinese and English.

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1. Text-to-Video Workflow

Save the image below and drag it into ComfyUI to load the workflow:

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2. Hunyuan Text-to-Video Model

Download hunyuan_video_t2v_720p_bf16.safetensors and save it to the ComfyUI/models/diffusion_models folder.

Ensure you have all these model files in the correct locations:

ComfyUI/
├── models/
│   ├── text_encoders/
│   │   ├── clip_l.safetensors                       // Shared model
│   │   └── llava_llama3_fp8_scaled.safetensors      // Shared model
│   ├── vae/
│   │   └── hunyuan_video_vae_bf16.safetensors       // Shared model
│   └── diffusion_models/
│       └── hunyuan_video_t2v_720p_bf16.safetensors  // T2V model

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3. Steps to Run the Workflow

1. Ensure that DualCLIPLoader has loaded these models:
   • clip_name1: clip_l.safetensors
   • clip_name2: llava_llama3_fp8_scaled.safetensors
2. Ensure that Load Diffusion Model has loaded diffusion_model_name: hunyuan_video_t2v_720p_bf16.safetensors
3. Ensure that Load VAE has loaded vae_name: hunyuan_video_vae_bf16.safetensors
4. Click the Queue button or use the shortcut Ctrl(cmd) + Enter to run the workflow

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Hunyuan Image-to-Video Workflow

Hunyuan Image-to-Video model was open-sourced on March 6, 2025, based on the HunyuanVideo framework. It transforms static images into smooth, high-quality videos and also provides LoRA training code to customize special video effects like hair growth, object transformation, etc.

Currently, the Hunyuan Image-to-Video model has two versions:

• v1 “concat”: Better motion fluidity but less adherence to the image guidance
• v2 “replace”: Updated the day after v1, with better image guidance but seemingly less dynamic compared to v1

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Shared Model for v1 and v2 Versions

Download the following file and save it to the ComfyUI/models/clip_vision directory:

• llava_llama3_vision.safetensors

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V1 “concat” Image-to-Video Workflow

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1. Workflow and Related Materials

Download the workflow image below and drag it into ComfyUI to load the workflow:

Download the image below, which we’ll use as the starting frame for the image-to-video generation:

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2. V1 “concat” Model

• hunyuan_video_image_to_video_720p_bf16.safetensors

Ensure you have all these model files in the correct locations:

ComfyUI/
├── models/
│   ├── clip_vision/
│   │   └── llava_llama3_vision.safetensors                     // I2V shared model
│   ├── text_encoders/
│   │   ├── clip_l.safetensors                                  // Shared model
│   │   └── llava_llama3_fp8_scaled.safetensors                 // Shared model
│   ├── vae/
│   │   └── hunyuan_video_vae_bf16.safetensors                  // Shared model
│   └── diffusion_models/
│       └── hunyuan_video_image_to_video_720p_bf16.safetensors  // I2V v1 "concat" version model

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3. Steps to Run the Workflow

1. Ensure that DualCLIPLoader has loaded these models:
   • clip_name1: clip_l.safetensors
   • clip_name2: llava_llama3_fp8_scaled.safetensors
2. Ensure that Load CLIP Vision has loaded llava_llama3_vision.safetensors
3. Ensure that Load Image Model has loaded hunyuan_video_image_to_video_720p_bf16.safetensors
4. Ensure that Load VAE has loaded vae_name: hunyuan_video_vae_bf16.safetensors
5. Ensure that Load Diffusion Model has loaded hunyuan_video_image_to_video_720p_bf16.safetensors
6. Click the Queue button or use the shortcut Ctrl(cmd) + Enter to run the workflow

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v2 “replace” Image-to-Video Workflow

The v2 workflow is essentially the same as the v1 workflow. You just need to download the replace model and use it in the Load Diffusion Model node.

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1. Workflow and Related Materials

Download the workflow image below and drag it into ComfyUI to load the workflow:

Download the image below, which we’ll use as the starting frame for the image-to-video generation:

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2. V2 “replace” Model

• hunyuan_video_v2_replace_image_to_video_720p_bf16.safetensors

Ensure you have all these model files in the correct locations:

ComfyUI/
├── models/
│   ├── clip_vision/
│   │   └── llava_llama3_vision.safetensors                                // I2V shared model
│   ├── text_encoders/
│   │   ├── clip_l.safetensors                                             // Shared model
│   │   └── llava_llama3_fp8_scaled.safetensors                            // Shared model
│   ├── vae/
│   │   └── hunyuan_video_vae_bf16.safetensors                             // Shared model
│   └── diffusion_models/
│       └── hunyuan_video_v2_replace_image_to_video_720p_bf16.safetensors  // V2 "replace" version model

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3. Steps to Run the Workflow

1. Ensure that DualCLIPLoader has loaded these models:
   • clip_name1: clip_l.safetensors
   • clip_name2: llava_llama3_fp8_scaled.safetensors
2. Ensure that Load CLIP Vision has loaded llava_llama3_vision.safetensors
3. Ensure that Load Image Model has loaded hunyuan_video_image_to_video_720p_bf16.safetensors
4. Ensure that Load VAE has loaded vae_name: hunyuan_video_vae_bf16.safetensors
5. Ensure that Load Diffusion Model has loaded hunyuan_video_v2_replace_image_to_video_720p_bf16.safetensors
6. Click the Queue button or use the shortcut Ctrl(cmd) + Enter to run the workflow