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POST
/
v1
/
images
/
generations
curl --request POST \
  --url https://api.apimart.ai/v1/images/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "z-image-turbo",
    "prompt": "Ink painting style landscape scenery"
  }'

{
  "code": 200,
  "data": [
    {
      "status": "submitted",
      "task_id": "task_01JGXYZ1234567890ABCDEF"
    }
  ]
}

curl --request POST \
  --url https://api.apimart.ai/v1/images/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "z-image-turbo",
    "prompt": "Ink painting style landscape scenery"
  }'

{
  "code": 200,
  "data": [
    {
      "status": "submitted",
      "task_id": "task_01JGXYZ1234567890ABCDEF"
    }
  ]
}

​
Supported Models

ModelDescriptionImages Per RequestPricing
z-image-turboLightweight and fast image generation, supports Chinese and EnglishFixed 1 imageFixed price

​
Authorizations

​
Authorization
string
required
All endpoints require Bearer Token authenticationGet API Key:Visit API Key Management to get your API KeyAdd to request header:
Authorization: Bearer YOUR_API_KEY

​
Body

​
model
string
required
Model name
  • z-image-turbo - Lightweight and fast image generation, supports Chinese and English
​
prompt
string
required
Text description for image generation, up to 800 characters
​
size
string
default:"1:1"
Image aspect ratioSupported aspect ratios:
  • 1:1 - Square (default)
  • 4:3 - Landscape 4:3
  • 3:4 - Portrait 3:4
  • 16:9 - Landscape widescreen
  • 9:16 - Portrait vertical
  • 3:2 - Landscape 3:2
  • 2:3 - Portrait 2:3
​
resolution
string
default:"1K"
Resolution tier
  • 1K - Standard resolution (default)
  • 2K - High definition resolution
​
prompt_extend
boolean
default:"false"
Smart prompt rewritingWhen enabled, AI will automatically optimize the prompt for better results, and costs will increase.
  • false - Disabled (default)
  • true - Enabled

​
Resolution Reference Table

Output size is controlled by the combination of size (ratio) + resolution (resolution tier).
Ratio1K Tier2K Tier
1:11024×10242048×2048
4:31152×8642048×1536
3:4864×11521536×2048
16:91280×7202048×1152
9:16720×12801152×2048
3:21248×8322048×1360
2:3832×12481360×2048

​
Usage Examples

Basic Text-to-Image (minimal request) 
{
  "model": "z-image-turbo",
  "prompt": "Ink painting style landscape scenery"
}
Specify ratio and resolution 
{
  "model": "z-image-turbo",
  "prompt": "Minimalist style cafe interior design",
  "size": "16:9",
  "resolution": "2K"
}
Enable smart prompt rewriting 
{
  "model": "z-image-turbo",
  "prompt": "A cat",
  "prompt_extend": true
}

​
Response

​
code
integer
Response status code
​
data
array
Response data array

​
Notes

  1. Asynchronous Processing: After submission, a task_id is returned. Poll /v1/tasks/{task_id} to get results
  2. Image Storage: Generated images are mirrored to platform CDN and are valid long-term
  3. Billing Rules: Billed per successfully generated image, no charge for failures
  4. Fixed Count: Z-Image-Turbo generates exactly 1 image per request, n parameter is not supported