🎯

nano-banana-build

🎯Skill

from cnemri/google-genai-skills

What it does

Generates and edits high-quality images using Gemini's Nano Banana models, supporting text-to-image, style transfer, and character consistency.

📦

Part of

cnemri/google-genai-skills(9 items)

nano-banana-build

Installation

Quick InstallInstall with npx

npx skills add cnemri/google-genai-skills --skill google-adk-python

git cloneClone repository

git clone https://github.com/cnemri/google-genai-skills.git ~/.gemini/skills/google-genai-skills

📖 Extracted from docs: cnemri/google-genai-skills

Need more details? View full documentation on GitHub →

4Installs

AddedFeb 4, 2026

View on GitHub Back to Skills

Skill Details

SKILL.md

Generate and edit high-quality images using Gemini 2.5 Flash Image and Gemini 3 Pro Image (Nano Banana). Supports Text-to-Image, Style Transfer, Virtual Try-On, and Character Consistency.

Overview

# Nano Banana Image Generation Skill

Use this skill to generate and edit images using the google-genai Python SDK with Gemini's specialized image models (Nano Banana).

Quick Start Setup

```python

from google import genai

from google.genai import types

from PIL import Image

import io

client = genai.Client()

```

Reference Materials

[Model Capabilities](references/model_capabilities.md): Comparison of Gemini 2.5 vs 3 Pro, resolutions, and token costs.
[Image Generation](references/image_generation.md): Text-to-Image, Interleaved Text/Image.
[Image Editing](references/image_editing.md): Subject Customization, Style Transfer, Multi-turn Editing.
[Thinking Process](references/thinking_process.md): Understanding thoughts and signatures (Gemini 3 Pro).
[Recipes](references/recipes.md): Extensive collection of examples (Logos, Stickers, Mockups, Comics, etc.).
[Source Code](references/source_code.md): Deep inspection of SDK internals.

Available Models

gemini-2.5-flash-image (Nano Banana): Fast, high-quality generation and editing. Best for most use cases.
gemini-3-pro-image-preview (Nano Banana Pro): Highest fidelity, supports 2K and 4K resolution, complex prompt adherence, and grounding.

Common Workflows

1. Fast Generation

```python

response = client.models.generate_content(

model='gemini-2.5-flash-image',

contents='A cute robot eating a banana',

config=types.GenerateContentConfig(

response_modalities=['IMAGE']

)

```

2. High-Quality Editing

```python

response = client.models.generate_content(

model='gemini-3-pro-image-preview',

contents=[

types.Part.from_uri(file_uri='gs://.../shoe.jpg', mime_type='image/jpeg'),

"Change the color of the shoe to neon green."

config=types.GenerateContentConfig(response_modalities=['IMAGE'])

)

```

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