# Grok Imagine Video 1.5 API

> xAI's Grok Imagine Video 1.5: text to video, image to video, first and last frames and reference to video, up to 1080p, with sound. By xAI, on Revana from $0.04 per second of video. The lowest listed Grok Imagine Video 1.5 price we found at 480p, 720p and 1080p (checked 2026-10-26).

- Model id: `grok-imagine-video-1.5`
- Kind: video
- Maker: xAI
- Tasks: Text to video, Image to video, First + last frame, Reference to video
- Resolutions: 480p, 720p, 1080p
- Durations: 1 to 15 seconds
- Aspect ratios: 16:9, 9:16, 1:1, 4:3, 3:4, 3:2, 2:3
- Audio: supported (`"audio": true`)
- Routes: 1
- Status: live on the API
- Page: https://revana.si/models/grok-imagine-video-1.5

## Price (per second of video, USD)

| Resolution | Price | Credits |
|---|---|---|
| 480p | $0.04 | 4 |
| 720p | $0.07 | 7 |
| 1080p | $0.13 | 13 |

100 credits = $1. Charged once, only for the route that succeeds; failed generations cost nothing.

## Price at other APIs (checked 2026-10-26)

Per second of output for a 16:9 clip with sound. Token prices are converted at width × height × 24 / 1024 tokens a second; card and top-up fees are not included.

| API | 480p | 720p | 1080p |
|---|---|---|---|
| Revana | $0.04 | $0.07 | $0.13 |
| xAI's own API | $0.08 | $0.14 | $0.25 |
| fal | $0.08 | $0.14 | $0.25 |
| Replicate | $0.08 | $0.08 | – |
| Runway API | $0.10 | $0.16 | $0.29 |

Lowest listed price per second: 480p Revana ($0.04); 720p Revana ($0.07); 1080p Revana ($0.13).
Full comparison and sources: https://revana.si/blog/grok-imagine-video-api-pricing (data: https://revana.si/data/market-prices.json)

## Request

POST https://api.revana.si/v1/generations with `Authorization: Bearer $REVANA_API_KEY`:

```json
{
  "model": "grok-imagine-video-1.5",
  "input": {
    "prompt": "A slow dolly shot through a neon-lit night market in the rain, steam rising from food stalls",
    "resolution": "720p",
    "duration": 1,
    "aspect_ratio": "16:9",
    "audio": true
  }
}
```

Poll `GET /v1/generations/{id}` until `status` is `succeeded` or `failed`, then download `GET /v1/generations/{id}/content`. Full API: https://revana.si/llms.txt

## Similar models

- [Grok Imagine Extend](https://revana.si/models/grok-imagine-extend.md): from $0.02 per second of video
- [Grok Imagine Upscale](https://revana.si/models/grok-imagine-upscale.md): from $0.07 per generation
- [Grok Imagine Video](https://revana.si/models/grok-imagine-video.md): from $0.02 per second of video
- [Grok Imagine Video 1.5 Preview](https://revana.si/models/grok-imagine-video-1.5-preview.md): from $0.02 per second of video
- [Grok Imagine Image](https://revana.si/models/grok-imagine-image.md): from $0.02 per image
- [Grok Imagine Image 2.0](https://revana.si/models/grok-imagine-image-2.0.md): from $0.02 per image