Qwen/Qwen-Image API

This document introduces the input and output parameters of the Qwen/Qwen-Image model API, for your reference when using the interface.

Request Parameters

Request Body

Field Name	Type	Required	Default	Description
prompt	string	Required	-	Prompt
model	string	Required	-	The model name used for this request, here it is `Qwen/Qwen-Image`.
seed	int	Optional	-1	Random seed for controlling the randomness of the model generation content. For consistent outputs, use the same seed value.
size	string	Optional	-	Size of the generated image (width x height), each dimension ranging from 256 to 1536. For example: `1024x1024`

Response Parameters

Field Name	Type	Description
created	`integer`	The Unix timestamp (in seconds) when this request was created.
data	`array`	Information about the output image, including the URL for download or Base64. • If the return format for the generated image is specified as url, the subfield is url; • If the return format is specified as b64_json, the subfield is b64_json. Note: Links will expire within 7 days upon generation, please save images promptly.
error	`Object`	Error information object
error.code	`string`	Error code
error.message	`string`	Error message
error.param	`string`	Request id

Examples

OPENAI Compatible Interface

POST https://api.umodelverse.ai/v1/images/generations

Synchronous Request


curl --location 'https://api.umodelverse.ai/v1/images/generations' \
--header "Authorization: Bearer $MODELVERSE_API_KEY" \
--header 'Content-Type: application/json' \
--data '{
    "model": "Qwen/Qwen-Image",
    "prompt": "Convert to quick pencil sketch",
    "size": "1024x1024"
}'


import os
from openai import OpenAI
 
client = OpenAI(
    base_url=os.getenv("BASE_URL", "https://api.umodelverse.ai/v1"),
    api_key=os.getenv("API_KEY", "$MODELVERSE_API_KEY")
)
 
response = client.images.generate(
    model="Qwen/Qwen-Image",
    prompt="Convert to quick pencil sketch",
    size="1024x1024"
)
 
print(response.data[0].url)

Response


{
  "created": 1750667997,
  "data": [
    {
      "url": "https://xxxxx/xxxx.png",
      "b64_json": "data:image/png;base64,{image_base64_string}"
    }
  ],
  "usage": {
    "input_tokens_details": {}
  }
}


{
  "error": {
    "message": "error_message",
    "type": "error_type",
    "param": "request_id",
    "code": "error_code"
  }
}