nano-banana-pro
Generate images using AI. Use when the user asks to create, generate, or make images, pictures, graphics, illustrations, visuals, or artwork. Also use for image editing with reference images.
When & Why to Use This Skill
Nano Banana Pro is a professional-grade AI image generation skill powered by Google's Gemini 3 Pro Image model. It enables users to create high-fidelity visuals, graphics, and illustrations directly through text prompts. Beyond simple generation, it supports advanced image editing, style transfer using reference images, and high-resolution output up to 4K, making it an essential tool for streamlining creative design and visual content production within Claude.
Use Cases
- Marketing & Social Media: Generate custom, high-resolution graphics (up to 4K) with specific aspect ratios like 1:1 for Instagram or 16:9 for YouTube thumbnails.
- Creative Style Transfer: Transform existing photos into specific artistic styles, such as watercolor or abstract art, by providing a reference image and a descriptive prompt.
- Image Editing & Modification: Enhance or alter existing visuals by adding new elements (e.g., 'add a rainbow to the sky') using reference-based editing capabilities.
- Professional Prototyping: Quickly create photorealistic landscapes, futuristic cityscapes, or architectural visualizations for presentations and mood boards.
- Brand Asset Development: Produce consistent visual content and illustrations for websites and landing pages while maintaining control over output format and resolution.
| name | nano-banana-pro |
|---|---|
| description | Generate images using AI. Use when the user asks to create, generate, or make images, pictures, graphics, illustrations, visuals, or artwork. Also use for image editing with reference images. |
| allowed-tools | Bash, Read, Write |
Nano Banana Pro - AI Image Generation
Generate images using Google's Gemini 3 Pro Image model.
Usage
Run the generation script:
python ~/.claude/skills/nano-banana-pro/generate_image.py "your prompt here" [options]
Options
| Option | Description | Default |
|---|---|---|
--resolution |
Output size: 1K, 2K, or 4K | 2K |
--aspect |
Aspect ratio: 16:9, 1:1, 4:3, 9:16, 3:4 | 16:9 |
--output |
Output directory path | ./generated_images |
--reference |
Reference image(s) for style/editing (up to 14) | None |
--format |
Output format: png, jpeg, webp | png |
Examples
Basic generation
python ~/.claude/skills/nano-banana-pro/generate_image.py "a serene mountain landscape at sunset, photorealistic"
Square image for social media
python ~/.claude/skills/nano-banana-pro/generate_image.py "abstract geometric pattern in blue and gold" --aspect 1:1 --resolution 2K
High-res with custom output
python ~/.claude/skills/nano-banana-pro/generate_image.py "futuristic city skyline" --resolution 4K --output ~/Pictures/ai-generated
Style transfer with reference image
python ~/.claude/skills/nano-banana-pro/generate_image.py "transform this into a watercolor painting" --reference input.jpg
Image editing with reference
python ~/.claude/skills/nano-banana-pro/generate_image.py "add a rainbow in the sky" --reference landscape.png
Output
Images are saved with timestamp filenames:
- Format:
{timestamp}_{sanitized_prompt}.{format} - Example:
20260106_143052_serene_mountain_landscape.png
The script outputs the full path to the generated image.
Requirements
- Python 3.10+
google-genailibraryGEMINI_API_KEYenvironment variable
Notes
- Gemini 3 Pro Image requires paid billing (no free tier)
- Generated images include SynthID watermarking
- Reference images enable style transfer and editing capabilities
- No text by default: The script automatically adds "no text/typography" instructions unless your prompt explicitly mentions text, typography, words, or labels. To include text, add words like "with text overlay" or "include typography" to your prompt.