v1

latestOpenAPI 3.0.1Z.AI Developer Agreement and Policy2026-07-131458163.2 KB

Generate Image

Use GLM-Image series models to generate high-quality images from text prompts. Through quick and accurate understanding of user text descriptions, AI image expression becomes more precise and personalized.

post/paas/v4/images/generations

Request body

model'glm-image' | 'cogview-4-250304' required

Model code

promptstring required

The text description of the image to be generated.

quality'hd' | 'standard'

The quality of the generated image. glm-image default is hd, others model is standard. hd: Generates a more detailed and rich image with higher overall consistency, but takes about 20 seconds. standard: Generates an image quickly, suitable for scenarios with higher requirements for generation speed, takes about 5-10 seconds.

sizestring

Image size. glm-image recommended enum values: 1280x1280 (default), 1568x1056, 1056x1568, 1472x1088, 1088x1472, 1728x960, 960x1728. Custom parameter: Both width and height must be between 1024px-2048px, and must be divisible by 32, and the maximum pixel count must not exceed 2^22px. Others model recommended enum values: 1024x1024 (default), 768x1344, 864x1152, 1344x768, 1152x864, 1440x720, 720x1440. Custom parameter: Both width and height must be between 512px-2048px, and must be divisible by 16, and the maximum pixel count must not exceed 2^21px.

user_idstring

Unique ID of the end user, helping the platform intervene in illegal activities, inappropriate content generation, or other abuses. ID length: 6 to 128 characters.

Example request

{
  "model": "glm-image",
  "prompt": "A cute little kitten.",
  "size": "1280x1280"
}

Response

Processing successful

createdinteger

Request creation time, in Unix timestamp format, unit is seconds.

Example response

{
  "created": 1760335349
}