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xai/video (xAI Grok Video Generation)
You can run this example with:
npx promptfoo@latest init --example xai/video
cd xai/video
This example demonstrates video generation using xAI's Grok Imagine API.
Setup
- Set your xAI API key:
export XAI_API_KEY=your_api_key_here
- Run the evaluation:
npx promptfoo@latest eval
Configuration Options
| Option | Type | Default | Description |
|---|---|---|---|
duration |
number | 8 | Video length in seconds (1-15) |
aspect_ratio |
string | 16:9 | Aspect ratio (16:9, 4:3, 1:1, 9:16, 3:4, 3:2, 2:3) |
resolution |
string | 720p | Output resolution (720p, 480p) |
Advanced Features
Image-to-Video
Animate a static image:
providers:
- id: xai:video:grok-imagine-video
config:
image:
url: 'https://example.com/image.jpg'
Video Editing
Edit an existing video:
providers:
- id: xai:video:grok-imagine-video
config:
video:
url: 'https://example.com/video.mp4'
prompts:
- 'Make the colors more vibrant'
Reference-to-Video
Guide the generated video with up to seven reference images:
providers:
- id: xai:video:grok-imagine-video
config:
reference_images:
- url: 'https://example.com/person.jpg'
- url: 'https://example.com/shirt.jpg'
duration: 10
reference_images cannot be combined with image or video, and reference-guided videos are limited to 10 seconds.