What is Nano Banana (Gemini image model)?

Nano Banana is the community nickname for Google's Gemini 2.5 image generation and editing model, released in 2025 and widely adopted for product-photo workflows because of its unusually strong identity consistency, prompt adherence, and ability to faithfully render real products from reference images. The name originated on AI image leaderboards where the model appeared anonymously as 'nano-banana' before Google attribution was confirmed. Two capabilities matter most for AI UGC: first, the model accepts multiple reference images (e.g., a product shot + a persona shot) and composes them into a new scene without losing either subject's identity—solving the historical pain point of 'the model invented its own version of my product'; second, the model is exceptionally responsive to natural-language scene direction, so a single sentence can shift lighting from harsh midday to golden hour, swap a kitchen for a balcony, or change the persona's expression without re-rolling the entire image. For e-commerce sellers and DTC brands, Nano Banana is the substrate that makes 'upload your product once, render it in any scene' actually work at production quality.