Nano Banana Image Generation

Generate images using Google's Gemini Image Generation API and save them directly into the project.

How It Works

Nano Banana is Google's native image generation built into Gemini models. It accepts text prompts and returns high-quality photorealistic images. The API returns base64-encoded image data which gets decoded and saved to disk.

Model

The bundled script uses gemini-2.5-flash-image — Google's current image generation model. It handles product photos, hero banners, lifestyle shots, and detail close-ups well at ~$0.04/image.

Note: The script also accepts --model flash and --model pro for future model tiers as Google releases them. If those fail, fall back to standard.

Supported Aspect Ratios