nanobanana

1# Nano Banana - AI Image Generation
2 
3Generate and edit images using Google's Gemini 3 Pro Image model (`gemini-3-pro-image-preview`, nicknamed "Nano Banana Pro" 🍌).
4 
5## Prerequisites
6 
7**Required:**
8- `GEMINI_API_KEY` - Get from [Google AI Studio](https://aistudio.google.com/apikey)
9- Python 3.10+ with `google-genai` package
10 
11**Install dependencies:**
12```bash
13pip install google-genai pillow
14```
15 
16## Quick Start
17 
18### Generate an image:
19```bash
20python3 <skill_dir>/scripts/generate.py "a cute robot mascot, pixel art style" -o robot.png
21```
22 
23### Edit an existing image:
24```bash
25python3 <skill_dir>/scripts/generate.py "make the background blue" -i input.jpg -o output.png
26```
27 
28### Generate with specific aspect ratio:
29```bash
30python3 <skill_dir>/scripts/generate.py "cinematic landscape" --ratio 21:9 -o landscape.png
31```
32 
33### Generate high-resolution 4K image:
34```bash
35python3 <skill_dir>/scripts/generate.py "professional product photo" --size 4K -o product.png
36```
37 
38## Script Reference
39 
40### `scripts/generate.py`
41 
42Main image generation script.
43 
44```
45Usage: generate.py [OPTIONS] PROMPT
46 
47Arguments:
48  PROMPT              Text prompt for image generation
49 
50Options:
51  -o, --output PATH   Output file path (default: auto-generated)
52  -i, --input PATH    Input image for editing (optional)
53  -r, --ratio RATIO   Aspect ratio (1:1, 16:9, 9:16, 21:9, etc.)
54  -s, --size SIZE     Image size: 2K or 4K (default: standard)
55  --search            Enable Google Search grounding for accuracy
56…