Model Copy Node for ComfyUI

A simple ComfyUI custom node that copies model files from the models/ folder to the output/ folder.

Author

Daïm Al-Yad (@daimalyad)

License

MIT License

Installation

1. Copy the ModelCopyNode folder to your ComfyUI custom_nodes/ directory
2. Restart ComfyUI
3. The node will appear in the node menu under the "file_operations" category

Usage

Inputs

• file_path (STRING): The relative path to the file within the models folder
  • Example: checkpoint/model.safetensors
  • Example: loras/my_lora.safetensors
  • Example: embeddings/textual_inversion.pt

Outputs

• success (BOOLEAN): Whether the copy operation was successful
• output_path (STRING): The full path where the file was copied to
• error_message (STRING): Error message if the copy failed (empty string if successful)

Example Workflow

1. Add the "Model Copy Node" to your workflow
2. Connect a text input or use the text field directly
3. Enter the relative path to your file (e.g., checkpoint/model.safetensors)
4. Execute the workflow
5. Check the outputs to verify success

Features

• Automatically creates output directories if they don't exist
• Preserves file metadata using shutil.copy2
• Comprehensive error handling and validation
• Only copies the file name to the output folder (not the full directory structure)
• Safe file operations with proper path validation

Notes

• The node expects a models/ folder in your ComfyUI root directory
• Files are copied to the output/ folder in your ComfyUI root directory
• Only the filename is preserved in the output folder (not the subdirectory structure)
• The node will create any necessary subdirectories in the output folder

Error Handling

The node handles various error conditions:

• Empty or invalid file paths
• Source file not found
• Permission errors
• OS-level errors
• General exceptions

All errors are returned as descriptive messages in the error_message output.