~/Runway Gen4 Aleph
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Video to Video

Runway Gen4 Aleph

Transform videos with natural language editing.

Schema

Hint: You can drag and drop a file or click to upload

Example

Input

Video

Sample output shown above. The prompt and settings are pre-filled on the left.

Your request will cost $0.90 per run. ($0.18/s) For $10 you can run this model approximately 11 times.

One more thing:

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README

Runway / Runway Gen4 Aleph — Video to Video (gen4-aleph)

Gen4 Aleph from Runway transforms videos with natural language instructions. Edit, modify, and reimagine your footage through text prompts while maintaining visual coherence.

Highlights

  • •Natural language editing – Transform videos using simple text descriptions.
  • •Context-aware – Maintains visual coherence across frames.
  • •Style transfer – Apply artistic styles to your videos.
  • •Object manipulation – Remove, add, or modify objects in videos.

Parameters

  • •video* – Source video to transform (max 16MB, first 5s used)
  • •prompt* – Describe how to transform the video
  • •aspect_ratio – Output aspect ratio (auto-crops input if different)
    • • 1280:720 (16:9 Landscape)
    • • 720:1280 (9:16 Portrait)
    • • 1104:832 (4:3 Landscape)
    • • 832:1104 (3:4 Portrait)
    • • 960:960 (Square)
    • • 1584:672 (21:9 Ultrawide)
    • • 848:480 (Landscape)
    • • 480:848 (Portrait)
  • •seed – Random seed for reproducibility

Pricing

$0.90 per generation

ResolutionPrice
5 seconds$0.18

How to Use

  1. 1.Upload your source video (first 5 seconds will be used).
  2. 2.Write a prompt describing the desired transformation.
  3. 3.Optionally add a reference image for style guidance.
  4. 4.Generate and download your transformed video.

More Models to Try

•Video editors: Transform existing footage with AI-powered effects.
•Content creators: Repurpose and enhance video content.
•Creative agencies: Generate unique visual treatments for campaigns.
•Filmmakers: Apply artistic transformations to footage.

Related Guides

Best AI Video APIs ComparedText to Video API GuideBest AI API Platforms 2026AI API Pricing Comparison

Frequently Asked Questions

What is the Runway Gen4 Aleph API?
Transform videos with natural language editing.
How much does Runway Gen4 Aleph cost via API?
Runway Gen4 Aleph costs $0.9000 per generation through Renderful's API. No subscription required — pay only for what you use.
How do I use Runway Gen4 Aleph via API?
Sign up for a free Renderful API key, then send a POST request to the /v1/predictions endpoint with model "gen4-aleph". See the documentation at renderful.ai/docs for code examples in Python, JavaScript, and cURL.
What type of content does Runway Gen4 Aleph generate?
Runway Gen4 Aleph is a video to video model by Runway. Key features include: Video editing, Natural language, Style transfer.
Is the Runway Gen4 Aleph API fast?
Runway Gen4 Aleph has medium generation speed. Results are delivered via polling or webhook callback for seamless integration.