Nano Banana (officially Gemini 2.5 Flash Image) is an image generation and editing model powered by generative artificial intelligence and developed by Google DeepMind, a subsidiary of Google. A text-to-image variant of the Gemini family of large language models, it was launched in August 2025 as a feature within the Gemini chatbot and other Google products. "Nano Banana" was the codename used for the model while it was undergoing secret public testing on LMArena. Upon release, it became a viral Internet sensation on social media, particularly for its photorealistic "3D figurine" images.