AI-Powered Planet Generator
A planet generator that uses Nano Banana 2 and Gemini 3 Flash to create a unique planet and corresponding lore based on your description. Type in any concept and watch it generate a fully realized world with its own history, geology, and atmosphere. Free to use — go make your own planet.
Gemini Galaxy takes a prompt and tries to make it feel like a world rather than a single generated image. Nano Banana 2 handles the planet image, Gemini 3 Flash writes the lore, and the interface treats the result like an entry in a planetary databank.
The fun is in the handoff between image and fiction. Geology, atmosphere, history, and mood all have to agree enough that the planet feels like a place, not a prompt result.
The project is small, but the structure matters. It is a useful pattern for generative interfaces: one model creates the artifact, another gives it context, and the UI frames the result so the user can inspect it like an object with history.