# Qwen3 Image to Image
## OpenAPI Specification
```yaml
openapi: 3.0.1
info:
title: ''
description: ''
version: 1.0.0
paths:
/api/v1/jobs/createTask:
post:
summary: Qwen3 Image to Image
deprecated: false
description: >-
## Create Task
Use this endpoint to create a new image-to-image generation task. Upload
an input image and provide a prompt describing the desired changes.
- The `image_urls` array supports up to 3 input images. Supported
formats: `image/jpeg`, `image/png`, `image/webp`, `image/bmp`, and
`image/gif`,`image/tiff`. Maximum file size: 10 MB per image.
- Supported resolutions: `1K` and `2K`.
- Supported image sizes: `1:1`, `3:2`, `2:3`, `4:3`, `3:4`, `16:9`,
`9:16`, and `21:9`.
- Supported output formats: `png` and `jpeg`. Default: `png`.
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: qwen3-image-to-image
tags:
- docs/en/Market/Image Models/Qwen
parameters: []
requestBody:
content:
application/json:
schema:
type: object
required:
- model
- input
properties:
model:
type: string
description: >-
The model name used for generation. This field is required.
This endpoint must use the `qwen3/image-to-image` model.
enum:
- qwen3/image-to-image
default: qwen3/image-to-image
x-apidog-enum:
- value: qwen3/image-to-image
name: ''
description: ''
examples:
- qwen3/image-to-image
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-to-image generation task.
required:
- image_urls
- prompt
properties:
image_urls:
type: array
minItems: 1
maxItems: 3
items:
type: string
format: uri
description: >-
Input image URL array. Upload images and provide their
URLs rather than the file content. Supports up to 3
images. Supported file types: `image/jpeg`, `image/png`,
`image/webp`, `image/bmp`, and `image/gif`,`image/tiff`.
Maximum file size: 10 MB per image.
examples:
- - https://example.com/input.png
prompt:
type: string
description: >-
The positive prompt that describes the image content,
style, and composition you want to generate or edit.
Both Chinese and English are supported.
minLength: 0
maxLength: 5000
examples:
- >-
Turn the input image into a cinematic watercolor
illustration.
resolution:
type: string
description: The output image resolution.
enum:
- 1K
- 2K
examples:
- 1K
default: 1K
image_size:
type: string
description: The output image size.
enum:
- '1:1'
- '3:2'
- '2:3'
- '4:3'
- '3:4'
- '16:9'
- '9:16'
- '21:9'
default: '16:9'
examples:
- '1:1'
output_format:
type: string
enum:
- png
- jpeg
default: png
description: The generated image format.
examples:
- png
prompt_extend:
type: boolean
default: true
description: >-
Whether to enable intelligent prompt rewriting. Default:
true (recommended). When enabled, the model optimizes
the positive prompt, which significantly improves
results for simple descriptions.
examples:
- true
nsfw_checker:
type: boolean
default: false
description: >-
Whether to enable content filtering. Optional. Defaults
to false. When set to false, content filtering is
disabled and all results are returned directly by the
model. Note: Content filtering cannot guarantee that all
inappropriate content will be detected. If the filtering
results do not meet your requirements, you must
implement additional content moderation measures.
examples:
- false
negative_prompt:
type: string
minLength: 0
maxLength: 5000
description: >-
The negative prompt that describes content you do not
want to appear in the image.
examples:
- blurry, low quality, distorted
seed:
type: integer
minimum: 0
maximum: 2147483647
default: 1
description: >-
The random seed. Value range: [0, 2147483647]. A fixed
seed helps maintain relatively stable results.
examples:
- 1
x-apidog-orders:
- image_urls
- prompt
- resolution
- image_size
- output_format
- prompt_extend
- negative_prompt
- seed
- nsfw_checker
x-apidog-orders:
- model
- callBackUrl
- input
example:
model: qwen3/image-to-image
callBackUrl: https://your-domain.com/api/callback
input:
image_urls:
- https://example.com/input.png
prompt: Turn the input image into a cinematic watercolor illustration.
resolution: 1K
image_size: '1:1'
output_format: png
prompt_extend: true
nsfw_checker: false
negative_prompt: blurry, low quality, distorted
seed: 1
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 used to query task status and results.
examples:
- task_qwen3_1765180586443
x-apidog-orders:
- taskId
x-apidog-orders:
- data
example:
code: 200
msg: success
data:
taskId: task_qwen3_1765180586443
headers: {}
x-apidog-name: ''
security:
- BearerAuth: []
x-apidog:
schemeGroups:
- id: kn8M4YUlc5i0A0179ezwx
schemeIds:
- BearerAuth
required: true
use:
id: kn8M4YUlc5i0A0179ezwx
scopes:
kn8M4YUlc5i0A0179ezwx:
BearerAuth: []
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: 1786436473000
costTime:
type: integer
description: Task duration in seconds
example: 38
createTime:
type: integer
format: int64
description: >-
Task creation time, represented as a Unix
timestamp in milliseconds
example: 1786436435000
creditsConsumed:
type: number
format: double
description: Number of credits consumed by the task
example: 5.3
model:
type: string
description: Image-to-image model used for the task
example: qwen3/image-to-image
param:
type: string
description: >-
Parameters submitted when creating the task, in
JSON string format
example: >-
{"input":"{\"output_format\":\"png\",\"seed\":1,\"image_size\":\"1:1\",\"prompt_extend\":true,\"negative_prompt\":\"blurry,
low quality,
distorted\",\"image_urls\":[\"https://static.aiquickdraw.com/tools/example/1786021267002_2vLU3iDm.png\"],\"prompt\":\"Convert
the input image into a cinematic watercolor
illustration.\",\"resolution\":\"1K\",\"nsfw_checker\":false}","callBackUrl":"https://webhook.uutool.cn/5f723555-ec59-4b8f-8feb-bed810982785","model":"qwen3/image-to-image"}
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/qwen3/1786436471808-b8apkvect1.png"]}
state:
type: string
description: Task status
enum:
- success
- fail
example: success
taskId:
type: string
description: Task ID
example: 301e6044f5e9774f8f44e2b1c754bbbf
updateTime:
type: integer
format: int64
description: >-
Last task update time, represented as a Unix
timestamp in milliseconds
example: 1786436473000
responses:
'200':
description: Callback received successfully
x-apidog-folder: docs/en/Market/Image Models/Qwen
x-apidog-status: released
x-run-in-apidog: https://app.apidog.com/web/project/1184766/apis/api-41209010-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: []
```