# Grok Imagine

> Grok Imagine Video 1.5 on Zurelay: 480p and 720p clips with sound, 1 to 15 seconds, from a prompt, a start image or up to 3 reference images.

Source: https://zurelay.com/docs/grok-imagine

xAI’s Grok Imagine Video 1.5: quick clips with sound at 480p and 720p, 1 to 15 seconds, from a prompt, a start image, or up to 3 reference images.

## Prices

| Model | Resolution | Per second | 5 second clip |
| --- | --- | --- | --- |
| [Grok Imagine Video 1.5](https://zurelay.com/models/grok-imagine-video-1.5) | 480p | $0.071 | $0.355 |
| [Grok Imagine Video 1.5](https://zurelay.com/models/grok-imagine-video-1.5) | 720p | $0.124 | $0.62 |

A clip costs its length times the rate: a 5 second 480p clip is $0.355. It’s charged only when the video is delivered.

## What it takes

- A prompt of up to 8,000 characters.
- A `first_frame`, or up to 3 `reference_images`, not both.
- Lengths from 1 to 15 seconds, in whole seconds.
- 16:9, 9:16, 1:1, 4:3 and 3:4. From a first frame, the video takes the image’s shape.
- Sound comes at no extra cost; set `generate_audio` to `false` for a silent clip.
- 480p and 720p.

## Example

Request body:

```json
{
  "model": "grok-imagine-video-1.5",
  "reference_images": [
    "https://example.com/beekeeper.jpg",
    "https://example.com/honey-jar.jpg"
  ],
  "prompt": "The beekeeper from the first image holds up the honey jar from the second image and smiles.",
  "seconds": 5,
  "resolution": "720p",
  "aspect_ratio": "16:9"
}
```

## Prompting

- Describe the shot and the motion: who moves, how, and what the camera does.
- With reference images, say who or what from each image appears and what they do.
- For clips you’ll score yourself, set `generate_audio` to `false`: the price is the same.

## Good to know

- Short clips are usually ready in under a minute.
- There’s no end frame, negative prompt or seed, and no 1080p yet.
- Prompts or images that may break the content rules can be declined (`content_policy`); declined videos are free.
- Videos are kept for 30 days; download the ones you want to keep.

Full API details: [Video generation](https://zurelay.com/docs/video). Try it in the dashboard’s [Playground](https://zurelay.com/app/playground), which shows the code for each video.