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

# Grok Imagine Upscale

> Upscale a Grok Imagine video to HD

Upscale a completed xAI Grok Imagine video to a higher-definition result. Provide the task ID of the source generation.

<Note>
  Upscale only works on videos generated with [Grok Imagine Video](/models/video/xai/grok-imagine-video) (`xai/grok-imagine-video`, the speed-optimized 1.5 build). Task IDs from [Grok Imagine Video 1.5](/models/video/xai/grok-imagine-1.5-video) (`xai/grok-imagine-1.5-video`) are not supported — that model is API-level and separate.
</Note>

## Model

```
xai/grok-imagine-upscale
```

## Parameters

| Parameter | Type   | Required | Default | Description                                                                          |
| --------- | ------ | -------- | ------- | ------------------------------------------------------------------------------------ |
| `task_id` | string | Yes      | —       | Task ID of a completed Grok Imagine video generation. Returns an HD-upscaled result. |

## Example Request

```bash theme={null}
curl -X POST https://api.unifically.com/v1/tasks \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "xai/grok-imagine-upscale",
    "input": {
      "task_id": "abc123def456"
    }
  }'
```

## Response

```json theme={null}
{
  "code": 200,
  "success": true,
  "data": {
    "task_id": "abc123def456",
    "status": "processing"
  }
}
```