Nano Banana Pro

nano-banana-pro is very close to nano-banana-2 structurally, but better suited for higher-quality output, polished creative, and image editing.

Quick Facts

Item	Value
Model ID	`nano-banana-pro`
Type	Image
Region	Global / CN
Best For	Higher-quality generation, polished creative, reference-image editing
Priority	Medium, use when quality matters more

Recommended Request Shape

This model still uses the unified POST /v1/generations endpoint.

{
  "model": "nano-banana-pro",
  "prompt": "Keep the bag shape, change the material to brushed metal, luxury campaign lighting",
  "reference_images": [
    "https://cdn.example.com/source/bag-front.png"
  ],
  "aspect_ratio": "1:1",
  "resolution": "4K"
}

Field Reference

Field	Type	Required	Default	Description
`model`	`string`	Yes	-	Must be `nano-banana-pro`
`prompt`	`string`	Yes	-	Image prompt
`reference_images`	`string[]`	No	-	Reference image URL list
`aspect_ratio`	`string`	No	`auto`	Output aspect ratio
`resolution`	`string`	No	`2K`	Output resolution
`n`	`integer`	No	`1`	Image count

Supported Enums

Field	Values
`aspect_ratio`	`auto` `21:9` `16:9` `3:2` `4:3` `1:1` `3:4` `2:3` `9:16`
`resolution`	`2K` `4K`

`nano-banana-pro` Integration Notes

Its parameter structure is almost the same as nano-banana-2.
Use it for more quality-sensitive marketing visuals and edits.

High-Quality Creative Example

{
  "model": "nano-banana-pro",
  "prompt": "A premium perfume campaign visual, reflective black stone, dramatic side light",
  "aspect_ratio": "4:3",
  "resolution": "4K"
}

Image Models