Nano Banana Image Combination Purpose Combine, merge, and compose multiple images using Google's Gemini 2.5 Flash (codename "Nano Banana") via OpenRouter. Perfect for creating composite images, replacing backgrounds, face swapping, and AI-guided photo manipulation. When to Use - Combining 2+ images into single composition - Face swapping or identity replacement - Background replacement - Creating thumbnails from multiple sources - AI-guided photo collages - Portrait + background composition Architecture Pattern Project Structure Installation Environment Setup Quick Start Basic Image Combinati…