What Is Nano Banana?
Nano Banana is the community nickname for Google's Gemini 2.5 Flash Image, the image generation and editing model from the Gemini family. It accepts text prompts and reference images, returns photoreal output with character consistency across multiple shots, and handles targeted local edits with natural language — change a hairstyle, remove a person, swap a background, recolor a t-shirt, all without masking. It also blends up to three reference images into one composite scene and carries the same character across every render. Output runs through Google's SynthID watermark for AI provenance, and pricing on the underlying API is $0.039 per image, which is why Nano Banana hits the cost-per-image sweet spot for high-volume creative work.