Nano Banana 2 Lite Image API Guide

About the Nano Banana 2 Lite API

Nano Banana 2 Lite is the lower-credit 1K variant for asynchronous image generation and editing.

Available image sizes: 1K
Operations: generation and edit
Fixed local cost: 20 credits per task
Result delivery: asynchronous task polling

Best uses for Nano Banana 2 Lite

Cost-conscious 1K generationReview the request contract below before choosing this model for production traffic.

1K image edits and prototypesReview the request contract below before choosing this model for production traffic.

Applications that do not need 2K or 4K outputReview the request contract below before choosing this model for production traffic.

Model summary

Fixed credit cost: 20
Output type: image
Operations: generation, edit
Image sizes: 1K

Generation request

json

{  "model": "nano-banana-2-lite",  "prompt": "A cinematic product photograph with soft studio lighting",  "aspect_ratio": "1:1",  "image_size": "1K",  "response_format": "url"}

Image field contract

Field	Use	Values
`model`	Required model ID	nano-banana-2-lite
`prompt`	Required generation or editing instruction	1–20,000 characters
`aspect_ratio`	Output ratio	auto, 1:1, 16:9, 9:16, 4:3, 3:4
`image_size`	Resolution tier	1K
`image_urls`	Required only for edits	1–16 public HTTPS URLs
`response_format`	Optional	url

Compare related models

Compare Nano Banana 2 Lite with nearby model routes before locking an output size, duration or credit budget into your integration.

Nano Banana ProNano Banana Pro is a multi-resolution image generation and editing route with 1K, 2K and 4K output options.Nano Banana FastNano Banana Fast is the 1K route for compact generation and editing tasks with a low fixed local credit cost.Nano Banana Pro VTNano Banana Pro VT exposes the VT model route for asynchronous generation and editing in 1K, 2K or 4K.

Nano Banana 2 Lite API FAQ

What can Nano Banana 2 Lite do?

Nano Banana 2 Lite supports asynchronous generation and edit. Nano Banana 2 Lite is the lower-credit 1K variant for asynchronous image generation and editing.

Which output sizes does Nano Banana 2 Lite support?

Nano Banana 2 Lite supports 1K. Use the exact model ID and size fields documented on this page so the request can be validated locally.

How many credits does Nano Banana 2 Lite use?

The current local price is 20 credits per generation or editing task. The task stores its quoted cost when it is created.