Wan 25 Preview

wan-25-preview-text-to-image

post

Wan 2.5 text-to-image model.

Header parameters

AuthorizationstringRequiredExample: sk-kEEV5TfTCTpE4uFwUg9p8UhVyVWpC9IEgOVezQ4b1ZCWQFCV

Body

application/json

modelstringRequired

model is the model name

Example: wan-25-preview-text-to-image

promptstringRequired

prompt is the prompt.

Example: A cute baby sea otter.

enable_prompt_expansionbooleanOptional

Whether to enable prompt rewriting using LLM. Improves results for short prompts but increases processing time. Default value: true

Default: true

seedintegerOptional

Random seed for reproducibility. If None, a random seed is chosen.

negative_promptstringOptional

Negative prompt to describe content to avoid. Max 500 characters.

nintegerOptional

n is the number of images to generate, default value is 1.

Default: 1Example: 1

output_formatstring · enumOptional

output_format indicate the output format, default value is url.

Default: urlExample: urlPossible values:

Responses

200Success

application/json

post

/v1/images/generations

HTTPcURLJavaScriptPython

POST /v1/images/generations HTTP/1.1
Host: image.onerouter.pro
Authorization: text
Content-Type: application/json
Accept: */*
Content-Length: 257

{
  "model": "wan-25-preview-text-to-image",
  "prompt": "A cute baby sea otter.",
  "size": {
    "height": 1024,
    "width": 1024
  },
  "enable_prompt_expansion": true,
  "seed": 1,
  "negative_prompt": "low resolution, error, worst quality, low quality, defects",
  "n": 1,
  "output_format": "url"
}

200Success

{
  "data": [
    {
      "url": "https://resource.onerouter.pro/image/generated%2Fonerouter_15cc7d62-27f0-4250-b180-475bf8b089bf.png",
      "b64_json": "",
      "revised_prompt": ""
    }
  ],
  "created": 1760427702
}