| name | nanobanana |
| description | Generate or edit images using NanoBanana. Use when users request image generation or edit, want to create visual content, or mention nanobanana. |
NanoBanana Image Generation
CLI tool for generating and editing images using Google's Gemini 3.1 Flash and Gemini 3 Pro models.
When to use this skill
- User requests image generation or editing
- User wants to create visual content or visualize real-time info
- User mentions "nanobanana" or image generation
- User specifies image parameters like aspect ratio or resolution
Command
nanobanana "prompt" [options]
Options
| Flag | Description | Default |
|---|
-o | Output file path | nanobanana_TIMESTAMP.png |
-a | Aspect ratio (1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9, 1:4, 4:1, 1:8, 8:1) | 1:1 (gen) / keep (edit) |
-r | Resolution (0.5K, 1K, 2K, 4K) | 1K |
-e | Edit existing image (input path) | - |
-ref | Reference image(s) for style guidance (max 14) | - |
-s | Google Search grounding for real-time info | off |
-i | Google Image Search grounding (Flash only) | off |
-p | Use Gemini 3 Pro model | off |
-t | Thinking level: minimal, high (Flash only) | - |
Examples
nanobanana "a cute cat sitting on a windowsill"
nanobanana "mountain landscape at sunset" -a 16:9 -r 2K -o landscape.png
nanobanana "cyberpunk cityscape" -r 4K -p -o cityscape.png
nanobanana "add sunglasses and a hat" -e photo.png -o edited.png
nanobanana "change background to beach" -e input.png -o beach.png
nanobanana "a cute cat in this style" -ref style.png -o cat.png
nanobanana "visualize today's weather in Tokyo" -s
nanobanana "turn this into a retro travel poster" -e input.png -ref style.png -s -a 16:9 -t high -o poster.png
Tips
- Be specific: include style keywords, lighting, mood, composition
- For edits, be clear about what to change vs. preserve
- For
-s search mode, start prompt with "visualize"
- For multiple images, spawn parallel threads to generate/edit concurrently
