> ## 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 - Go SDK > VideoGenerationRequest type definition The Go SDK and docs are currently in beta. Report issues on [GitHub](https://github.com/OpenRouterTeam/go-sdk/issues). ## Fields | Field | Type | Required | Description | Example | | ----------------- | ------------------------------------------------------------------------------------------------------------------ | -------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------- | | `AspectRatio` | [\*components.AspectRatio](/client-sdks/go/api-reference/models/aspectratio) | :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) | | `Duration` | `*int64` | :heavy\_minus\_sign: | Duration of the generated video in seconds | 8 | | `FrameImages` | \[][components.FrameImage](/client-sdks/go/api-reference/models/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. | | | `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.ContentPartImage](/client-sdks/go/api-reference/models/contentpartimage) | :heavy\_minus\_sign: | Reference images to guide video generation | | | `Model` | `string` | :heavy\_check\_mark: | N/A | | | `Prompt` | `string` | :heavy\_check\_mark: | N/A | | | `Provider` | [\*components.VideoGenerationRequestProvider](/client-sdks/go/api-reference/models/videogenerationrequestprovider) | :heavy\_minus\_sign: | Provider-specific passthrough configuration | | | `Resolution` | [\*components.Resolution](/client-sdks/go/api-reference/models/resolution) | :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 |