Nano Banana, internally codenamed and formally known as Gemini 2.5 Flash Image, is Google’s powerful AI model for natural-language image editing. It transforms static photos with simple prompts, enabling edits like background swaps, outfit modifications, colorization, and seamless image merging. The model stands out for its ability to maintain character consistency, keeping people, animals, and objects accurate and recognizable even after multiple edits. It supports multi-turn editing, allowing users to refine a single image through iterative adjustments that remain coherent throughout the process. Nano Banana is built into the Gemini app, giving both free and paid users access to its advanced editing capabilities. Its architecture emphasizes speed, precision, and flexibility, making it suitable for creative and practical applications alike. To ensure responsible AI use, all outputs are embedded with visible and invisible SynthID watermarks. With these features, Nano Banana sets a high standard for AI-driven photo editing and transparency in generative content.