Text to video

Request

{
  "model": "wan-3.0",
  "mode": "text_to_video",
  "variant": "standard",
  "parameters": {
    "resolution": "720p",
    "duration_seconds": 5,
    "ratio": "16:9",
    "audio": true,
    "prompt_extend": false,
    "watermark": false
  },
  "input": {
    "prompt": "A paper boat crosses a rain puddle, macro lens"
  }
}

input.prompt is required and must contain 1–20,000 characters after trimming. Set the output duration, resolution, ratio, audio, and watermark in parameters.

Prompt extension

prompt_extend defaults to false in the public v1 schema. Set it to true to request provider prompt expansion. The current public response does not promise a separate “effective prompt” field.

After create

Save the returned generation ID and poll the status endpoint. Do not keep the create connection open while the video renders.