Skip to main content
Three models are available, each with text-to-image and image-to-image endpoints.

NanoBanana

Fast model. Output is fixed at 1K.

NanoBanana 2

Higher quality. Selectable resolution and the full aspect-ratio set.

NanoBanana Pro

Top tier. Selectable resolution and the full aspect-ratio set.

​
Endpoints

Using the Gemini-compatible API? Reference each model by its Gemini id: gemini-2.5-flash-image (NanoBanana), gemini-3.1-flash-image (NanoBanana 2), gemini-3-pro-image (NanoBanana Pro). The -preview-suffixed ids are supported too — see Models.

​
Differences

Output is fixed at 1K. The resolution field is not accepted and supplying it is rejected. Supported aspect ratios are a subset of the full set — see Aspect ratios.
Selectable resolution (1K, 2K, 4K) and the full aspect-ratio set, including 1:4, 1:8, 4:1, 8:1, and auto.
Selectable resolution (1K, 2K, 4K) and the full aspect-ratio set. Uses the unprefixed endpoints POST /text-generations and POST /url-generations.