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FramePack: The Ultimate Guide to Low-VRAM Video Generation in ComfyUI

Framepack AI
April 30, 2025
8 min read

FramePack: The Ultimate Guide to Low-VRAM Video Generation in ComfyUI

FramePack is a revolutionary AI video generation technology developed by Dr. Lvmin Zhang's team from Stanford University, who are also the creators of ControlNet. This innovative solution enables users to create high-quality videos up to 60 seconds long with minimal hardware requirements.

What Makes FramePack Special?

FramePack's key innovation is its dynamic context compression system that classifies video frames based on importance. Key frames retain 1536 feature markers, while transitional frames are simplified to just 192 markers. This approach uses bidirectional memory and reverse generation techniques to prevent the common problems of image drift and ensure action continuity throughout the video.

The most remarkable achievement of FramePack is how it dramatically reduces VRAM requirements for video generation. Instead of needing professional-grade hardware with 12GB+ of VRAM, FramePack can run on consumer-level GPUs with just 6GB VRAM. This makes it possible for users with even modest laptops equipped with an RTX 3060 to generate high-quality videos up to 60 seconds long at full 30fps.

Getting Started with FramePack in ComfyUI

Installation Requirements

To get started with FramePack in ComfyUI:

  1. Download either FramePackI2V_HY_fp8_e4m3fn.safetensors (lower VRAM usage) or FramePackI2V_HY_fp16.safetensors (higher quality) and save it to your "ComfyUI/models/diffusion_models" folder
  2. Install the ComfyUI-FramePackWrapper using: git clone https://github.com/kijai/ComfyUI-FramePackWrapper.git in your ComfyUI/custom_nodes directory
  3. Install dependencies: python_embededpython.exe -m pip install -r ComfyUIcustom_nodesComfyUI-FramePackWrapper equirements.txt

You'll also need additional models:

  • CLIP Vision model (sigclip_vision_patch14_384.safetensors) for your ComfyUI/models/clip_vision folder
  • Text encoders for your ComfyUI/models/text_encoders directory
  • VAE model (hunyuan_video_vae_bf16.safetensors) for your ComfyUI/models/vae folder

Using the FramePack Workflow

Once installed, you can find example workflows in the "ComfyUI/custom_nodes/ComfyUI-FramePackWrapper/example_workflows" folder. The workflow requires:

  1. Loading the FramePackModel (FramePackI2V_HY_fp8_e4m3fn.safetensors)
  2. Setting up the CLIP Vision model (sigclip_vision_patch14_384.safetensors)
  3. Loading the VAE model (hunyuan_video_vae_bf16.safetensors)
  4. Entering your video description prompt in the CLIP Text Encoder node
  5. Loading your image in the first frame node

In the FramePackSampler node, you can adjust the "total_second_length" parameter to change your video duration. The default is typically set to 5 seconds, but FramePack can handle much longer videos without increased VRAM requirements.

Creating Effective Videos with FramePack

For best results with your FramePack videos, it's important to craft detailed prompts that focus on motion. Rather than simply describing scenes, emphasize dynamic actions and movements that bring your image to life.

The generation process is unique in FramePack - it actually works in reverse order, creating the end of the video first and extending to the beginning. This inverted anti-drifting sampling method anchors each frame generation on the high-quality initial frame, preventing quality degradation over time.

Generation times vary based on your hardware, but as a benchmark, with high-end hardware, a 5-second video typically takes around 4.25 minutes to process, while a 10-second video takes approximately 8.25 minutes.

Why Choose FramePack for Your Video Projects?

FramePack solves two critical problems in AI video generation:

  1. "Forgetting" - where the model struggles to remember earlier content
  2. "Drift" - where visual quality degrades as errors accumulate over time

This makes FramePack ideal for a wide range of applications including content creation, marketing materials, e-commerce product demonstrations, social media content, and much more. The ability to create smooth, professional videos with minimal hardware opens up video creation to many who previously couldn't access this technology.

With its revolutionary approach to low-VRAM video generation, FramePack represents a significant breakthrough in making high-quality AI video accessible to everyday users. By following this guide, you'll be creating impressive videos from still images in no time - all with ComfyUI's user-friendly interface.

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