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

Clone this repository into your ComfyUI custom_nodes folder:

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

Install the required dependencies:
```
pip install -r requirements.txt
```
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
Create a .env file in the extension directory with your Google API key:
```
GOOGLE_API_KEY=your_google_api_key_here
```
Restart ComfyUI

Usage

Veo 3 Text to Video

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

Veo 3 Video Saver

Connect video output from a Veo 3 generation node
Configure:
- Save to output (true/false)
- Filename prefix
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]