This article traces how the Nano Banana name came to be and how a casual codename turned into a viral brand.
With Nano Banana Pro, the latest iteration of Google's image generation and editing model, people can prompt Gemini using text, images or both to create, edit and refine visuals - including images with accurate, legible text.
In late July, engineers and product teams were finalizing the first version of the model, fixing bugs and running evaluations. Internally the model carried a technical label - Gemini 2.5 Flash Image - but the team still needed a public codename for LMArena submissions.
LMArena is a public benchmarking site where users compare anonymous outputs from two models and vote for the better result. Because teams sometimes submit work-in-progress models to gather human feedback, an informal codename is typically used rather than the technical name.
The codename decision came down to the wire. A product manager suggested a playful option late at night: Nano Banana. The name was inspired by one team member’s personal nicknames - a mashup of “Naina Banana” and “Nano” - and it felt fitting for a Flash-model submission.
The team posted the model on LMArena in early August, and the combination of strong editing performance and the whimsical codename quickly caught attention. Users praised the model’s ability to preserve likenesses and combine multiple images, while the unusual name fueled social conversations and memes.
As interest grew, the team hinted on social channels that Google was behind the model. When the model launched publicly, it rose to the top of image-editing rankings worldwide. Broad availability from day one - across countries and for both developers and consumers - helped accelerate global uptake and culturally specific trends, like figurine-style edits from Thailand and saree-related prompts from India.
Although the technical label remained Gemini 2.5 Flash Image, the Nano Banana name stuck. The team embraced the nickname across products and marketing: the run button in AI Studio was colored yellow, a banana emoji was added to the Gemini app’s Create image control, and limited-edition banana-themed swag was produced. With the arrival of Gemini 3 Pro Image, the branded name evolved into Nano Banana Pro.
The team leaned into the lighthearted branding and banana-themed elements, acknowledging mixed reactions to the puns but glad that people found the model engaging and useful.
