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POST
/
v3
/
async
/
z-image-turbo
Z Image Turbo Image Generation
curl --request POST \
  --url https://api.highwayapi.ai/v3/async/z-image-turbo \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: <content-type>' \
  --data '
{
  "mask": "<string>",
  "seed": 123,
  "size": "<string>",
  "prompt": "<string>",
  "strength": 123,
  "image_url": "<string>",
  "output_format": "<string>",
  "enable_base64_output": true
}
'
{
  "task_id": "<string>"
}
This is an asynchronous API that only returns an async task_id. You need to use the task_id to call the task result query API to obtain the generated result.
This is an asynchronous API and will only return the task_id of the asynchronous task. You should use this task_id to request the Query Task Result API to retrieve the generated result.

​
Request Headers

​
Content-Type
string
required
Enum value: application/json
​
Authorization
string
required
Bearer authentication format: Bearer {{API Key}}.

​
Request Body

​
mask
string
Mask image URL for inpainting. White areas are repainted, while black areas remain unchanged. Must be used together with image_url
​
seed
integer
Random seed for generation. -1 means using a random seed. Range: -1 to 2147483647Value range: [-1, 2147483647]
​
size
string
default:"1024*1024"
Pixel dimensions of the generated image (width*height). Each dimension ranges from 256 to 1536 pixels
​
prompt
string
required
Positive prompt for generation
​
strength
number
Transformation strength for img2img. 0.0-0.3 enhancement mode, 0.3-0.6 balanced transformation, 0.6-0.8 style conversion, 0.8-1.0 creative repainting. Must be used together with image_urlValue range: [0, 1]
​
image_url
string
Reference image URL for img2img
​
output_format
string
default:"webp"
Format of the output image. Supports jpeg, png, webpOptional values: jpeg, png, webp
​
enable_base64_output
boolean
default:false
If enabled, the output will be encoded as a BASE64 string instead of a URL. This property is only available via API

​
Response Information

​
task_id
string
required
Use task_id to request the Query Task Result API to retrieve the generated output.