# Google - imagen4-ultra
## OpenAPI Specification
```yaml
openapi: 3.0.1
info:
title: ''
description: ''
version: 1.0.0
paths:
/api/v1/jobs/createTask:
post:
summary: Google - imagen4-ultra
deprecated: false
description: >
Image generation by Google imagen4-ultra
## Query Task Status
After submitting a task, use the unified query endpoint to check
progress and retrieve results:
Learn how to query task status and retrieve generation results
::: tip[]
For production use, we recommend using the `callBackUrl` parameter to
receive automatic notifications when generation completes, rather than
polling the status endpoint.
:::
## Related Resources
Explore all available models
Check credits and account usage
operationId: google-imagen4-ultra
tags:
- docs/en/Market/Image Models/Google
parameters: []
requestBody:
content:
application/json:
schema:
type: object
required:
- model
properties:
model:
type: string
enum:
- google/imagen4-ultra
default: google/imagen4-ultra
description: |-
The model name to use for generation. Required field.
- Must be `google/imagen4-ultra` for this endpoint
examples:
- google/imagen4-ultra
callBackUrl:
type: string
format: uri
description: >-
The URL to receive generation task completion updates.
Optional but recommended for production use.
- System will POST task status and results to this URL when
generation completes
- Callback includes generated content URLs and task
information
- Your callback endpoint should accept POST requests with
JSON payload containing results
- Alternatively, use the Get Task Details endpoint to poll
task status
- To ensure callback security, see [Webhook Verification
Guide](/common-api/webhook-verification) for signature
verification implementation
examples:
- https://your-domain.com/api/callback
input:
type: object
description: Input parameters for the generation task
properties:
prompt:
description: >-
The text prompt describing what you want to see (Max
length: 5000 characters)
type: string
maxLength: 5000
examples:
- >-
A lively comic scene where two colleagues are in an
office. The first person says, 'Have you heard about
Google Imagen 4 Ultra?' The second person responds
with excitement, 'It’s the best text-to-image tool out
there!' The first person asks again, 'Do you know
where to get the API?' The second person smiles and
says, 'Kie.ai has it!' In the final panel, the two
look at a screen showing Kie.ai’s interface with an
API option, with bright and colorful comic-style
illustrations.
negative_prompt:
description: >-
A description of what to discourage in the generated
images (Max length: 5000 characters)
type: string
maxLength: 5000
examples:
- ''
aspect_ratio:
type: string
description: The aspect ratio of the generated image
enum:
- '1:1'
- '16:9'
- '9:16'
- '3:4'
- '4:3'
- auto
default: '1:1'
examples:
- '1:1'
x-apidog-enum:
- value: '1:1'
name: ''
description: ''
- value: '16:9'
name: ''
description: ''
- value: '9:16'
name: ''
description: ''
- value: '3:4'
name: ''
description: ''
- value: '4:3'
name: ''
description: ''
- value: auto
name: ''
description: ''
seed:
description: >-
Random seed for reproducible generation (Max length: 500
characters)
type: string
maxLength: 500
examples:
- ''
required:
- prompt
x-apidog-orders:
- prompt
- negative_prompt
- aspect_ratio
- seed
x-apidog-ignore-properties: []
x-apidog-orders:
- model
- callBackUrl
- input
x-apidog-ignore-properties: []
example:
model: google/imagen4-ultra
callBackUrl: https://your-domain.com/api/callback
input:
prompt: >-
A lively comic scene where two colleagues are in an office.
The first person says, 'Have you heard about Google Imagen 4
Ultra?' The second person responds with excitement, 'It’s the
best text-to-image tool out there!' The first person asks
again, 'Do you know where to get the API?' The second person
smiles and says, 'Kie.ai has it!' In the final panel, the two
look at a screen showing Kie.ai’s interface with an API
option, with bright and colorful comic-style illustrations.
negative_prompt: ''
aspect_ratio: '1:1'
seed: ''
responses:
'200':
description: Request successful
content:
application/json:
schema:
allOf:
- $ref: '#/components/schemas/ApiResponse'
example:
code: 200
msg: success
data:
taskId: task_google_1765172311071
headers: {}
x-apidog-name: ''
'500':
description: request failed
content:
application/json:
schema:
type: object
properties:
code:
type: integer
description: >-
Response status code
- **200**: Success - Request has been processed
successfully
- **401**: Unauthorized - Authentication credentials are
missing or invalid
- **402**: Insufficient Credits - Account does not have
enough credits to perform the operation
- **404**: Not Found - The requested resource or endpoint
does not exist
- **408**: Upstream is currently experiencing service
issues. No result has been returned for over 10 minutes.
- **422**: Validation Error - The request parameters
failed validation checks
- **429**: Rate Limited - Request limit has been exceeded
for this resource
- **455**: Service Unavailable - System is currently
undergoing maintenance
- **500**: Server Error - An unexpected error occurred
while processing the request
- **501**: Generation Failed - Content generation task
failed
- **505**: Feature Disabled - The requested feature is
currently disabled
msg:
type: string
description: Response message, error description when failed
data:
type: object
properties: {}
x-apidog-orders: []
x-apidog-ignore-properties: []
x-apidog-orders:
- code
- msg
- data
required:
- code
- msg
- data
x-apidog-ignore-properties: []
example:
code: 500
msg: >-
Server Error - An unexpected error occurred while processing
the request
data: null
headers: {}
x-apidog-name: 'Error '
security:
- BearerAuth: []
x-apidog:
required: true
schemeGroups:
- id: dVOjpy6lU_TX2YyuAv2Zl
schemeIds:
- BearerAuth
use:
id: dVOjpy6lU_TX2YyuAv2Zl
callbacks:
onImageGenerated:
'{$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: 1786427040000
costTime:
type: integer
description: Task duration in seconds
example: 48
createTime:
type: integer
format: int64
description: >-
Task creation time, represented as a Unix
timestamp in milliseconds
example: 1786426989000
creditsConsumed:
type: number
format: double
description: Number of credits consumed by the task
example: 8
model:
type: string
description: Image generation model used for the task
example: google/imagen4-ultra
param:
type: string
description: >-
Parameters submitted when creating the task, in
JSON string format
example: >-
{"input":"{\"aspect_ratio\":\"1:1\",\"prompt\":\"A
lively comic scene set in an office, where two
colleagues are having a conversation. The first
person asks, ‘Have you heard of Google Imagen 4
Ultra?’ The second person enthusiastically
replies, ‘It is the best text-to-image tool
available right now!’ The first person then
asks, ‘Do you know where to get this API?’ The
second person smiles and says, ‘It is available
on Kie.ai!’ In the final panel, both people are
looking at a screen displaying the Kie.ai
interface with an API option.Use a bright,
colorful, and cheerful comic-book style
throughout.\"}","callBackUrl":"https://webhook.uutool.cn/5f723555-ec59-4b8f-8feb-bed810982785","model":"google/imagen4-ultra"}
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/workers/images/image_90b6bf4499a80b74a2b5ee640b7aaf70.jpg"]}
state:
type: string
description: Task status
enum:
- success
- fail
example: success
taskId:
type: string
description: Task ID
example: 4e029a320e97cff234e6e06827c3965e
updateTime:
type: integer
format: int64
description: >-
Last task update time, represented as a Unix
timestamp in milliseconds
example: 1786427040000
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-28506359-run
components:
schemas:
ApiResponse:
type: object
properties:
code:
type: integer
description: >-
Response status code
- **200**: Success - Request has been processed successfully
- **401**: Unauthorized - Authentication credentials are missing or
invalid
- **402**: Insufficient Credits - Account does not have enough
credits to perform the operation
- **404**: Not Found - The requested resource or endpoint does not
exist
- **422**: Validation Error - The request parameters failed
validation checks
- **429**: Rate Limited - Request limit has been exceeded for this
resource
- **433**: Request Limit - Sub-key Usage Exceeds Limit
- **455**: Service Unavailable - System is currently undergoing
maintenance
- **500**: Server Error - An unexpected error occurred while
processing the request
- **501**: Generation Failed - Content generation task failed
- **505**: Feature Disabled - The requested feature is currently
disabled
enum:
- 200
- 401
- 402
- 404
- 422
- 429
- 433
- 455
- 500
- 501
- 505
x-apidog-enum:
- value: 200
name: ''
description: ''
- value: 401
name: ''
description: ''
- value: 402
name: ''
description: ''
- value: 404
name: ''
description: ''
- value: 422
name: ''
description: ''
- value: 429
name: ''
description: ''
- value: 433
name: ''
description: ''
- value: 455
name: ''
description: ''
- value: 500
name: ''
description: ''
- value: 501
name: ''
description: ''
- value: 505
name: ''
description: ''
msg:
type: string
description: Response message, error description when failed
examples:
- success
data:
type: object
properties:
taskId:
type: string
description: >-
Task ID, can be used with Get Task Details endpoint to query
task status
x-apidog-orders:
- taskId
required:
- taskId
x-apidog-ignore-properties: []
x-apidog-orders:
- code
- msg
- data
title: response not with recordId
required:
- data
x-apidog-ignore-properties: []
x-apidog-folder: ''
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: []
```