Gemini Nano Banana Image Generator Skill

Generate high-quality images using Google's Gemini 2.5 Flash Image model (codename: Nano Banana).

Model Information

• Model ID: gemini-2.5-flash-image
• Also known as: Nano Banana
• Pro version: gemini-3-pro-image (Nano Banana Pro) - better text rendering, up to 14 reference images
• Pricing: ~$0.039 per image (1024x1024)

Prerequisites

1. Google AI Studio API Key

Get your API key from: https://aistudio.google.com/app/apikey

2. Environment Variable

export GEMINI_API_KEY="your-api-key-here"