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POST
  1. After submission, a task_id will be returned. If you provided a callback_url, when the task status becomes finished or failed, a POST request will be sent to the callback_url.
  2. Regardless of whether callback_url is provided, you can retrieve the result through the unified Query Task Status endpoint.
H3 Max Turbo generates 5–15 second videos at 480p, 768p, or 1080p.

Models

  • h3-max-turbo — H3 Max Turbo

Features

  • Text to video: omit image_urls or pass an empty array.
  • First frame: provide one image in image_urls.
  • First and last frames: provide two images in image_urls, with the starting frame first and the ending frame second.
Image-guided generation follows the first image’s aspect ratio. Omit aspect_ratio whenever image_urls contains images.

Notes

  • prompt is required in every mode and accepts up to 50,000 characters.
  • duration accepts an integer from 5 through 15 seconds and defaults to 5.
  • resolution accepts 480p, 768p, or 1080p and defaults to 768p. Uppercase P is also accepted.
  • enable_safety_checker (boolean) enables the safety checker when true. Defaults to true in every mode; set false to disable it.
  • Text-to-video supports 21:9, 16:9, 4:3, 1:1, 3:4, and 9:16. Its default aspect ratio is 16:9.
  • image_urls accepts at most two publicly accessible image URLs or Base64 images.
  • Reference media, custom audio tracks, seed, and prompt-expansion controls are not available for this model.

Authorizations

Authorization
string
header
required

All API endpoints require Bearer Token authentication.

Create an API key: sign in to PoYo, open Dashboard → API Key at poyo.ai/dashboard/api-key, and click to create a key.

Add it to the request header:

Body

application/json
model
enum<string>
required
Available options:
h3-max-turbo
Example:

"h3-max-turbo"

input
object
required
callback_url
string<uri>

Optional webhook callback URL.

Response

Task submitted successfully

code
enum<integer>
required

Business status code. 200 means success; any other value means the request failed. Always check this field: some validation errors return HTTP 200 with code: 400 in the body.

  • 200: Success
  • 400: Invalid request parameters
  • 401: Missing or invalid API key
  • 402: Insufficient credits
  • 403: Permission denied
  • 404: Resource not found
  • 408: Request timeout
  • 429: Rate limit exceeded
  • 500: Internal server error
  • 502: Upstream service error
  • 503: Service unavailable

See Error Codes for details.

Available options:
200,
400,
401,
402,
403,
404,
408,
429,
500,
502,
503
Example:

200

data
object
required