> For the complete documentation index, see [llms.txt](https://docs.pletor.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pletor.ai/models/video-models/previous-generation-video-models/runway-aleph.md).

# Runway Aleph

## **TL;DR**

Amazing model if you need to edit or vary (AI-generated) video footage without traditional software or video/motion experts.

### **Strengths for marketers**

* **Easy editing**: Turn basic or imperfect videos into professional marketing content with simple text prompts.
* **Video variations**: Generate different camera angles and variations from a single video. 
* **Professional VFX**: Remove video backgrounds or add cinematic effects that normally require expensive equipment and specialized teams.

### **Ideal use cases**

* **Product showcases**: Add your product to existing lifestyle footage or remove competing products or objects from scenes.
* **UGC Ads & social media video content**: Create multiple camera angles from one video for different platform formats.
* **Campaign variations**: Generate different versions of the same scene for A/B testing.
* **Brand consistency**: Remove unwanted logos, signs, or elements that don't match your brand.

### **Weaknesses**

* Only works with existing video (can't create from scratch)
* Limited to 5-second clips
* Auto-crops videos to fit supported formats

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## **How to use effectively**

Keep prompts simple with two parts:

1. **Action word**: "add," "remove," "change," "replace," "re-light"
2. **What you want**: Clear description of the change

### **Example prompts**

* "Remove the person in the background"
* "Add rain to the scene"
* "Change the lighting to golden hour"
* "Replace the blue car with a red one"

***

## Model parameters

### **Inputs accepted**

* **Video file** (up to 5 seconds) + **Text prompt**
* **Video file** + **Text prompt** + **Reference image** (for style/color guidance)

### Output characteristics

* **Resolution**: 1280x720 (HD)
* **Duration**: Up to 5 seconds
* **Format**: Automatically crops to supported aspect ratios
  * 16:9 — 1280x720 px
  * 9:16 — 720x1280 px
  * 1:1 — 960x960 px
  * 4:3 — 1104x832 px
  * 3:4 — 832x1104 px
  * 21:9 — 1584x672 px