ComfyUI-Veo3-Experimental

A custom node extension for ComfyUI that integrates Google's Veo 3 text-to-video generation capabilities.

Overview of Veo 3

Veo 3 is Google's latest text-to-video generation model, designed to create high-quality videos from text prompts. It offers improved quality, better motion understanding, and enhanced visual fidelity compared to previous versions.

⚠️ Important: <span style="color:red">This feature may not yet be available in your country. You may also be charged by Google for additional usage 0.35$ per sec.</span>

Key Features of Veo 3

• Text-to-Video Generation: Create videos from descriptive text prompts
• Resolution: Outputs videos in 720p resolution at 24 frames per second
• Aspect Ratios: Supports standard formats like 16:9 and 9:16
• Maximum Video Length: Up to 8 seconds per video
• Watermarking: Videos are watermarked with SynthID for ethical AI use
• Enhanced Quality: Improved visual fidelity and motion understanding

Features

• Generate videos from text prompts using Google's Veo 3 model
• Configure video aspects like duration, aspect ratio, and person generation
• Save generated videos to your output directory
• Convert Veo 3 videos to VHS-compatible image format for further processing

Requirements

• ComfyUI (latest version recommended)
• Google Cloud API Key with access to Veo 3
• Python 3.8+
• Google Generative AI Python SDK: pip install google-genai>=0.3.0

Installation

1. Clone this repository into your ComfyUI custom_nodes folder:

   cd /path/to/ComfyUI/custom_nodes
   git clone https://github.com/ShmuelRonen/ComfyUI-Veo3-Experimental
   

2. Install the required dependencies:

   pip install -r requirements.txt
   

3. Get your free API key from Google AI Studio:

   • Visit Google AI Studio
   • Log in with your Google account
   • Click on "Get API key" or go to settings
   • Create a new API key
   • Copy the API key for use in .env file

4. Create a .env file in the extension directory with your Google API key:

   GOOGLE_API_KEY=your_google_api_key_here
   

5. Restart ComfyUI

Usage

Veo 3 Text to Video

1. Add the "Veo 3 Text to Video" node to your workflow
2. Enter your prompt describing the video you want to generate
3. Configure:
   • Aspect ratio (16:9 or 9:16)
   • Person generation setting (don't allow or allow adult)
   • Duration (5-8 seconds)
4. Connect to "Veo 3 Video Saver" to view and save results

Veo 3 Video Saver

1. Connect video output from a Veo 3 generation node
2. Configure:
   • Save to output (true/false)
   • Filename prefix
3. Execute to save videos to your ComfyUI output directory

Veo 3 to VHS

Converts Veo 3 videos to a format compatible with other ComfyUI video processing nodes.

Notes

• Video generation may take several minutes
• The extension implements rate limiting to avoid quota errors
• Image-to-video generation is currently not supported by Google's API
• Maximum video duration is 8 seconds
• Veo 3 offers improved quality and motion understanding over previous versions

Troubleshooting

If you encounter "Google API key is required" errors:

• Check that your .env file is in the correct location
• Verify your API key is valid and has access to Veo 3
• Restart ComfyUI

If you encounter import errors:

• Make sure all dependencies are installed: pip install -r requirements.txt
• Check that you're using Python 3.8 or higher

License

[Your License Here]