> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# VideoGenerationRequest

## Fields

| Field             | Type                                                                                                            | Required             | Description                                                                                                                                                                                                                                                                        | Example                                                    |
| ----------------- | --------------------------------------------------------------------------------------------------------------- | -------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------- |
| `AspectRatio`     | [\*components.VideoGenerationRequestAspectRatio](../../models/components/videogenerationrequestaspectratio.mdx) | :heavy\_minus\_sign: | Aspect ratio of the generated video                                                                                                                                                                                                                                                | 16:9                                                       |
| `CallbackURL`     | `*string`                                                                                                       | :heavy\_minus\_sign: | URL to receive a webhook notification when the video generation job completes. Overrides the workspace-level default callback URL if set. Must be HTTPS.                                                                                                                           | [https://example.com/webhook](https://example.com/webhook) |
| `Creativity`      | `*int64`                                                                                                        | :heavy\_minus\_sign: | Creativity level for video upscaling models only. This parameter is not supported by video generation models.                                                                                                                                                                      | 1                                                          |
| `Duration`        | `*int64`                                                                                                        | :heavy\_minus\_sign: | Duration of the generated video in seconds                                                                                                                                                                                                                                         | 8                                                          |
| `FrameImages`     | \[][components.FrameImage](../../models/components/frameimage.mdx)                                              | :heavy\_minus\_sign: | Images to use as the first and/or last frame of the generated video. Each image must specify a frame\_type of first\_frame or last\_frame.                                                                                                                                         |                                                            |
| `GenerateAudio`   | `*bool`                                                                                                         | :heavy\_minus\_sign: | Whether to generate audio alongside the video. Defaults to the endpoint's generate\_audio capability flag, false if not set.                                                                                                                                                       | true                                                       |
| `InputReferences` | \[][components.InputReference](../../models/components/inputreference.mdx)                                      | :heavy\_minus\_sign: | Reference assets to guide video generation. Accepts image, audio, and video references. Audio and video references are only honored by providers that support them (including BytePlus Seedance generation 2 and newer); other providers use image references and ignore the rest. |                                                            |
| `Model`           | `string`                                                                                                        | :heavy\_check\_mark: | N/A                                                                                                                                                                                                                                                                                |                                                            |
| `Prompt`          | `*string`                                                                                                       | :heavy\_minus\_sign: | Text prompt describing the video to generate. Optional for models that support generating a video from image input alone; required by all other models.                                                                                                                            | A serene mountain landscape at sunset                      |
| `Provider`        | [\*components.VideoGenerationRequestProvider](../../models/components/videogenerationrequestprovider.mdx)       | :heavy\_minus\_sign: | Provider-specific passthrough configuration                                                                                                                                                                                                                                        |                                                            |
| `Resolution`      | [\*components.VideoGenerationRequestResolution](../../models/components/videogenerationrequestresolution.mdx)   | :heavy\_minus\_sign: | Resolution of the generated video                                                                                                                                                                                                                                                  | 720p                                                       |
| `Seed`            | `*int64`                                                                                                        | :heavy\_minus\_sign: | If specified, the generation will sample deterministically, such that repeated requests with the same seed and parameters should return the same result. Determinism is not guaranteed for all providers.                                                                          |                                                            |
| `Size`            | `*string`                                                                                                       | :heavy\_minus\_sign: | Exact pixel dimensions of the generated video in "WIDTHxHEIGHT" format (e.g. "1280x720"). Interchangeable with resolution + aspect\_ratio.                                                                                                                                         | 1280x720                                                   |
| `UpscaleFactor`   | `*float64`                                                                                                      | :heavy\_minus\_sign: | Upscale factor for video upscaling models only. This parameter is not supported by video generation models.                                                                                                                                                                        | 2                                                          |