# Grok Imagine Video 1.5 API on MLMux

> xAI Grok Imagine Video 1.5 for video with audio from text, a first or last frame, or reference images.

- Model page: https://www.mlmux.com/xai/grok-imagine-video-1.5
- API model ID: `xai/grok-imagine-video-1.5`
- Provider: xAI
- Generation modes: Text to video, Image to video, First & last frame, Multimodal reference
- Endpoint: `POST https://api.mlmux.com/v1/videos/generations`
- Reference images: up to 14
- Resolutions: 480p, 720p, 1080p
- Aspect ratios: 16:9, 9:16, 1:1, 4:3, 3:4, 3:2, 2:3, 21:9
- Duration: 1 to 15 seconds
- Audio: can generate audio together with the video

## Pricing

Pay as you go in credits; 1 credit = 1 US dollar, with no subscription. `official-cheap` is the default route.

- 480p: $0.08 on `official`, $0.072 on `official-cheap` per second of output video
- 720p: $0.14 on `official`, $0.126 on `official-cheap` per second of output video
- 1080p: $0.25 on `official`, $0.225 on `official-cheap` per second of output video

## Request

Send your API key as `Authorization: Bearer $MLMUX_API_KEY`. Create keys at https://www.mlmux.com/console/api-keys.

```bash
curl https://api.mlmux.com/v1/videos/generations \
  -H "Authorization: Bearer $MLMUX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "xai/grok-imagine-video-1.5",
  "route_mode": "official-cheap",
  "prompt": "A red fox walks through fresh snow at sunrise, slow tracking shot, cinematic light",
  "mode": "text_to_video",
  "ratio": "16:9",
  "resolution": "720p",
  "duration": 5,
  "generate_audio": true
}'

# The response is a task. Poll it until "status" is "succeeded", then read "video".
curl https://api.mlmux.com/v1/videos/generations/TASK_ID \
  -H "Authorization: Bearer $MLMUX_API_KEY"
```

```python
import os
import time
import requests

headers = {"Authorization": f"Bearer {os.environ['MLMUX_API_KEY']}"}
response = requests.post(
    "https://api.mlmux.com/v1/videos/generations",
    headers=headers,
    json={
      "model": "xai/grok-imagine-video-1.5",
      "route_mode": "official-cheap",
      "prompt": "A red fox walks through fresh snow at sunrise, slow tracking shot, cinematic light",
      "mode": "text_to_video",
      "ratio": "16:9",
      "resolution": "720p",
      "duration": 5,
      "generate_audio": True
    },
    timeout=300,
)
response.raise_for_status()
task = response.json()

while task["status"] not in ("succeeded", "failed", "expired", "canceled"):
    time.sleep(5)
    task = requests.get("https://api.mlmux.com" + task["poll_url"], headers=headers, timeout=30).json()

print(task["status"], task.get("video"))
```

The response is a task. Poll its `poll_url` every few seconds until `status` is `succeeded`, then read the video URL, or receive a webhook when it finishes.

## Frequently asked questions

### What is Grok Imagine Video 1.5?

Grok Imagine Video 1.5 is a video generation model from xAI. On MLMux you can run it in the browser or call it through one API. xAI Grok Imagine Video 1.5 for video with audio from text, a first or last frame, or reference images.

### How do I use the Grok Imagine Video 1.5 API?

Create an API key in the MLMux Console, then send a POST request to https://api.mlmux.com/v1/videos/generations with the key in the Authorization header and model set to xai/grok-imagine-video-1.5. The request returns a task: poll it, or receive a webhook when the video is ready.

### What can Grok Imagine Video 1.5 do?

Generation modes: Text to video, Image to video, First & last frame, and Multimodal reference. Clips run 1 to 15 seconds at 480p, 720p, or 1080p, in aspect ratios such as 16:9, 9:16, 1:1, 4:3, 3:4, and 3:2, with up to 14 reference images. Grok Imagine Video 1.5 can also generate audio together with the video.

### How much does Grok Imagine Video 1.5 cost?

MLMux is pay as you go, with no subscription or monthly fee, and 1 credit equals 1 US dollar. One second of 720p Grok Imagine Video 1.5 video costs $0.126 on the default official-cheap route and $0.14 on the official route. Rates for every resolution are listed in the pricing section of this page.

### Can I try Grok Imagine Video 1.5 without writing code?

Yes. Sign in and use the playground at the top of this page to run Grok Imagine Video 1.5 with the same settings as the API. The playground's code views show the matching request for your settings, and the quick start below has copy-paste examples in cURL, Python, and JavaScript.

## More

- Video API guide: https://www.mlmux.com/docs/videos
- Pricing for every model: https://www.mlmux.com/pricing
- All models: https://www.mlmux.com/llms.txt