Custom ComfyUI nodes for AI-powered image editing and prompt management.
Nodes
Nano Banana Pro Edit
Edit and transform images using Google's Gemini 3 Pro model through a simple API call. Supports custom aspect ratios, resolution up to 4K, and adjustable safety filters.
A faster, lighter image editor powered by Gemini 3.1 Flash for quick image edits and modifications. Same flexible controls as Pro but optimized for speed.
Inputs:
Input
Type
Default
Description
images
IMAGE
—
Input image(s) to edit
api_key
String
—
Your Google Gemini API key
prompt
Multiline String
—
Instructions for how to edit the image
aspect_ratio
Dropdown
auto
Output aspect ratio
image_size
Dropdown
1K
Output resolution: 1K, 2K, or 4K
temperature
Float (0–2)
1.0
Controls creativity
safety_threshold
Dropdown
BLOCK_ONLY_HIGH
Content safety filter level
Output:IMAGE tensor
Example Prompt Selector
Browse and select from pre-written example prompts stored in text files. Outputs the selected prompt as a STRING to connect to other nodes.
Inputs:
Input
Type
Description
prompt_file
Dropdown
Select which .txt file to browse prompts from
example_prompt
Dropdown
Browse prompts from the selected file
prompt_text
Multiline String
Editable text area — auto-populated when you select a prompt. Edit to customize.
Output:STRING — the prompt text. Uses prompt_text if manually edited, otherwise the selected example prompt.
Navigation: Use the Prev Prompt / Next Prompt buttons to cycle through prompts, or click the dropdown to pick directly.
Adding Your Own Prompts
Create a .txt file in the prompts/ folder (e.g., prompts/my_styles.txt)
Write one prompt per block, separated by --- on its own line:
A beautiful sunset over the ocean, golden light, dramatic clouds
---
A cyberpunk street scene at night, neon reflections, rain-soaked pavement
---
A cozy cabin interior with fireplace, warm lighting, rustic furniture
Restart ComfyUI — the new file appears in the prompt_file dropdown
