# Google - Nano Banana 2 Lite
## OpenAPI Specification
```yaml
openapi: 3.0.1
info:
title: ''
description: ''
version: 1.0.0
paths:
/api/v1/jobs/createTask:
post:
summary: Google - Nano Banana 2 Lite
deprecated: false
description: >-
## Create Task
Use this endpoint to create a new image generation task. Provide a text
prompt, and optionally include image URLs as visual references.
- Set `image_urls` to an empty array or omit it for pure text-to-image
generation. Up to 10 images are supported.
- Supported aspect ratios: `1:1`, `1:4`, `1:8`, `2:3`, `3:2`, `3:4`,
`4:1`, `4:3`, `4:5`, `5:4`, `8:1`, `9:16`, `16:9`, `21:9`, `auto`.
Default: `auto`.
After submission, use the unified query endpoint to check task progress and retrieve results
::: tip[]
For production use, we recommend providing the `callBackUrl` parameter
so your service can receive completion notifications instead of polling
for task status.
:::
## Related Resources
Explore all available models and capabilities
Check account credits and usage
operationId: nano-banana-2-lite
tags:
- docs/en/Market/Image Models/Google
parameters: []
requestBody:
content:
application/json:
schema:
type: object
required:
- model
- input
properties:
model:
type: string
enum:
- nano-banana-2-lite
default: nano-banana-2-lite
description: >-
The model name used for generation. This field is required.
This endpoint must use the `nano-banana-2-lite` model.
examples:
- nano-banana-2-lite
callBackUrl:
type: string
format: uri
description: >-
Callback URL for task completion notifications. Optional
parameter. If provided, the system will send a POST request
to this URL when the task completes, whether it succeeds or
fails. If omitted, no callback notification will be sent.
examples:
- https://your-domain.com/api/callback
input:
type: object
description: Input parameters for the image generation task.
required:
- prompt
- aspect_ratio
properties:
image_urls:
type: array
maxItems: 10
items:
type: string
format: uri
default: []
description: >-
Input image URL array. Optional parameter. Set to an
empty array or omit it for pure text-to-image
generation. Supports up to 10 images.
- Please provide uploaded file URLs, not raw file
content
- Accepted types: `image/jpeg`, `image/png`,
`image/webp`
- Max size: 30.0MB
examples:
- - >-
https://file.aiquickdraw.com/custom-page/akr/section-images/1756223420389w8xa2jfe.png
prompt:
type: string
maxLength: 20000
description: >-
Text prompt used to generate the image. Required.
Maximum length: 20000 characters.
examples:
- Generate a pig on the grass, cinematic light
aspect_ratio:
type: string
enum:
- '1:1'
- '1:4'
- '1:8'
- '2:3'
- '3:2'
- '3:4'
- '4:1'
- '4:3'
- '4:5'
- '5:4'
- '8:1'
- '9:16'
- '16:9'
- '21:9'
- auto
default: auto
description: >-
Generated image aspect ratio. Default value: `auto`. Use
`auto` to let the system choose the aspect ratio
automatically.
examples:
- auto
x-apidog-orders:
- image_urls
- prompt
- aspect_ratio
x-apidog-orders:
- model
- callBackUrl
- input
example:
model: nano-banana-2-lite
callBackUrl: https://your-domain.com/api/callback
input:
image_urls:
- >-
https://file.aiquickdraw.com/custom-page/akr/section-images/1756223420389w8xa2jfe.png
prompt: Generate a pig on the grass, cinematic light
aspect_ratio: auto
responses:
'200':
description: Request successful
content:
application/json:
schema:
allOf:
- type: object
properties: {}
- type: object
properties:
data:
type: object
properties:
taskId:
type: string
description: >-
Task ID, which can be used to query task status
through the task detail endpoint.
examples:
- task_nanobanana_1765180586443
x-apidog-orders:
- taskId
x-apidog-orders:
- data
example:
code: 200
msg: success
data:
taskId: task_nanobanana_1765180586443
headers: {}
x-apidog-name: ''
security:
- BearerAuth: []
x-apidog:
required: true
schemeGroups:
- id: Wc7OEyHo3dCGMyxVPjC6O
schemeIds:
- BearerAuth
use:
id: Wc7OEyHo3dCGMyxVPjC6O
callbacks:
onImageGenerated:
'{$request.body#/callBackUrl}':
post:
summary: Image Generation Callback
description: >-
When the image generation task is completed, the system sends
the result to your callback URL via a POST request.
requestBody:
required: true
content:
application/json:
schema:
type: object
properties:
code:
type: integer
description: >-
Status code
- **200**: Success - Image generation task completed
successfully
- **400**: Invalid request parameters or content
violates policy
- **500**: Internal error. Please try again later.
- **501**: Failed - Image generation task failed
enum:
- 200
- 400
- 500
- 501
msg:
type: string
description: Status message
example: Playground task completed successfully.
data:
type: object
properties:
completeTime:
type: integer
format: int64
description: >-
Task completion time, represented as a Unix
timestamp in milliseconds
example: 1786429387000
costTime:
type: integer
description: Task duration in seconds
example: 135
createTime:
type: integer
format: int64
description: >-
Task creation time, represented as a Unix
timestamp in milliseconds
example: 1786429251000
creditsConsumed:
type: number
format: double
description: Number of credits consumed by the task
example: 3
model:
type: string
description: Image generation model used for the task
example: nano-banana-2-lite
param:
type: string
description: >-
Parameters submitted when creating the task, in
JSON string format
example: >-
{"input":"{\"aspect_ratio\":\"auto\",\"image_urls\":[\"https://file.aiquickdraw.com/custom-page/akr/section-images/1756223420389w8xa2jfe.png\"],\"prompt\":\"Generate
a pig on the grass, cinematic
light\"}","callBackUrl":"https://webhook.uutool.cn/5f723555-ec59-4b8f-8feb-bed810982785","model":"nano-banana-2-lite"}
resultJson:
type: string
description: >-
Image generation result in JSON string format.
resultUrls contains the list of generated image
URLs.
example: >-
{"resultUrls":["https://tempfile.aiquickdraw.com/ggc/226095d9935c83a8a0b4f0e50c235219_1786429384006.jpeg"]}
state:
type: string
description: Task status
enum:
- success
- fail
example: success
taskId:
type: string
description: Task ID
example: 226095d9935c83a8a0b4f0e50c235219
updateTime:
type: integer
format: int64
description: >-
Last task update time, represented as a Unix
timestamp in milliseconds
example: 1786429387000
responses:
'200':
description: Callback received successfully
x-apidog-folder: docs/en/Market/Image Models/Google
x-apidog-status: released
x-run-in-apidog: https://app.apidog.com/web/project/1184766/apis/api-39045655-run
components:
schemas: {}
securitySchemes:
BearerAuth:
type: bearer
scheme: bearer
bearerFormat: API Key
description: >-
All API requests require a Bearer Token. Add the header `Authorization:
Bearer YOUR_API_KEY` to authenticate requests.
BearerAuth1:
type: bearer
scheme: bearer
bearerFormat: API Key
description: >-
所有 API 请求都需要 Bearer Token。请在请求头中添加 `Authorization: Bearer YOUR_API_KEY`
进行身份验证。
servers:
- url: https://api.kie.ai
description: 正式环境
security:
- BearerAuth: []
x-apidog:
schemeGroups:
- id: kn8M4YUlc5i0A0179ezwx
schemeIds:
- BearerAuth
required: true
use:
id: kn8M4YUlc5i0A0179ezwx
scopes:
kn8M4YUlc5i0A0179ezwx:
BearerAuth: []
```