🍌 Cool Banana

A super simple image maker for small business

NEW: 20th Nov.2025. Version 2.0 offers dual image editing and the new Nano Banana Pro (Gemini 3 Pro Image) model for superb image generation and editing. 

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Why?

The best two image edit and generation models in the world. Nothing beats Google Gemini 3 Pro Image and ChatGPT-5 Image for images with text and context adherence. Note users can revert to Gemini 2.5 Flash Image in seconds if needed, as well as any other supported image model.

No multiple subscription hassles. One sign up, multiple models, multiple model upgrades when they're released.

The app lives on your Windows PC, so no data harvesting. Your OpenRouter API key is stored locally and privately on your own machine. 

Super easy to use. Instant product shots, blog images, marketing images, adverts and more. Just prompt for your brand styles.

State of the art image editing and text insertion or deletion. 

Upload and edit your existing images with a text prompt. Or create an image, then refine it iteratively. 

Privacy

Windows only (at the moment)

Windows 10/11 • ~100MB • Requires OpenRouter API Key

Pricing notes

Images cost approximately $0.03-0.07 each through OpenRouter (paid directly to them). No markup, no subscription.  Pay-as-you-go pricing.