To make a Nano Banana model, which is a 3D AI-generated figurine, follow these steps:
- Open Google AI Studio or the Gemini app where Nano Banana (Gemini 2.5 Flash Image model) is available for free use.
- Choose your method: upload a photo plus add a descriptive prompt or use just a prompt if you want to generate from text.
- Use this example prompt to generate a realistic 1/7 scale figurine of the character in the photo:
"Create a 1/7 scale commercialized figurine of the character in the picture, in a realistic style, in a real environment. The figurine is placed on a computer desk, standing on a round transparent acrylic base, with no text on the base. The computer screen shows a 3D modeling process of the figurine. Next to the screen is a toy packaging box designed like high-quality collectible figures with original artwork and 2D illustrations."
- Click the Generate button to create the image. Review the generated figurine and if anything needs to be adjusted (pose, face, clothing), modify the prompt or upload a different photo and try again.
For a developer or technical user, you can also use the Google Gen AI SDK with the "gemini-2.5-flash-image-preview" model to programmatically generate and edit these figurines using Python or JavaScript code. This process offers a fast and accessible way to create detailed 3D figurine images without traditional modeling, perfect for collectible-like visuals or prototypes. References show this method is popular and free to try with initial sessions in Google AI Studio or Gemini app, costing about $0.039 per image for extensive use.
