Appearance
Nano Banana
Nano Banana names are legacy-compatible aliases for Gemini image models, not separate models or parent categories. New integrations should pass the canonical gemini-* model id in the model field.
Model mapping
| Public alias | Canonical model id | Documentation |
|---|---|---|
nano-banana | gemini-2.5-flash-image | Gemini 2.5 Flash Image |
nano-banana-2 | gemini-3.1-flash-image-preview | Gemini 3.1 Flash Image Preview |
nano-banana-pro | gemini-3-pro-image-preview | Gemini 3 Pro Image Preview |
Use the canonical Gemini model id in new request examples. The aliases above are retained only for older integrations that need a migration map.
The older Nano Banana-compatible JSON contract has moved to Legacy transition format.