> ## Documentation Index > Fetch the complete documentation index at: https://openrouter-d02e98a0-mintlify-5b6e02fd.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # VideoGenerationRequest - Python SDK > VideoGenerationRequest method reference The Python SDK and docs are currently in beta. Report issues on [GitHub](https://github.com/OpenRouterTeam/python-sdk/issues). ## Fields | Field | Type | Required | Description | Example | | ------------------ | -------------------------------------------------------------------------------------------------------- | -------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------- | | `aspect_ratio` | [Optional\[components.AspectRatio\]](../components/aspectratio.md) | :heavy\_minus\_sign: | Aspect ratio of the generated video | 16:9 | | `callback_url` | *Optional\[str]* | :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) | | `duration` | *Optional\[int]* | :heavy\_minus\_sign: | Duration of the generated video in seconds | 8 | | `frame_images` | List\[[components.FrameImage](/client-sdks/python/api-reference/components/frameimage)] | :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. | | | `generate_audio` | *Optional\[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 | | `input_references` | List\[[components.ContentPartImage](/client-sdks/python/api-reference/components/contentpartimage)] | :heavy\_minus\_sign: | Reference images to guide video generation | | | `model` | *str* | :heavy\_check\_mark: | N/A | | | `prompt` | *str* | :heavy\_check\_mark: | N/A | | | `provider` | [Optional\[components.VideoGenerationRequestProvider\]](../components/videogenerationrequestprovider.md) | :heavy\_minus\_sign: | Provider-specific passthrough configuration | | | `resolution` | [Optional\[components.Resolution\]](../components/resolution.md) | :heavy\_minus\_sign: | Resolution of the generated video | 720p | | `seed` | *Optional\[int]* | :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` | *Optional\[str]* | :heavy\_minus\_sign: | Exact pixel dimensions of the generated video in "WIDTHxHEIGHT" format (e.g. "1280x720"). Interchangeable with resolution + aspect\_ratio. | 1280x720 |