~/WAN 2.5 Video Extend
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Video to Video

WAN 2.5 Video Extend

Extend videos with AI-generated continuation.

Schema

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

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 $0.25 per run. ($0.05/s) For $10 you can run this model approximately 40 times.

One more thing:

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README

Alibaba / WAN 2.5 Video Extend — Video to Video (wan-2.5-video-extend)

WAN 2.5 Video Extend uses Alibaba\

Highlights

  • •Seamless extension – AI generates continuation that flows naturally from your source video.
  • •Flexible duration – Choose from 3, 5, or 10 second extensions.
  • •Resolution options – Output in 480p, 720p, or 1080p quality.
  • •Audio support – Optionally include audio for the extended portion.
  • •Prompt-guided – Describe exactly how you want the video to continue.

Parameters

  • •video* – Source video to extend
  • •prompt* – Description of how the video should continue
  • •negative_prompt – Things to avoid in the extension
  • •audio – Audio file for the extended portion (WAV/MP3)
  • •resolution – Output video resolution
    • • 480p
    • • 720p
    • • 1080p
  • •duration – Extension duration in seconds
    • • 3 seconds
    • • 5 seconds
    • • 10 seconds
  • •enable_prompt_expansion – Enable AI prompt enhancement
  • •seed – Random seed for reproducibility

Pricing

$0.25 per generation

ResolutionPrice
480p$0.05
720p$0.10
1080p$0.15

How to Use

  1. 1.Upload your source video.
  2. 2.Write a prompt describing how the video should continue.
  3. 3.Optionally add audio for the extension.
  4. 4.Select resolution and duration.
  5. 5.Generate and download the extended video.

Pro Tips

  • •Use the last few frames as context - describe what naturally follows the current action.
  • •Keep camera movement consistent with the source video (if it\
  • •,
  • •,
  • •,
  • •s mood and rhythm.

More Models to Try

•Content creators: Extend short clips into longer content.
•Video editors: Fill gaps or extend scenes seamlessly.
•Social media: Turn brief moments into shareable videos.
•Storytellers: Continue narratives beyond the original 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 WAN 2.5 Video Extend API?
Extend videos with AI-generated continuation.
How much does WAN 2.5 Video Extend cost via API?
WAN 2.5 Video Extend costs $0.2500 per generation through Renderful's API. No subscription required — pay only for what you use.
How do I use WAN 2.5 Video Extend via API?
Sign up for a free Renderful API key, then send a POST request to the /v1/predictions endpoint with model "wan-2.5-video-extend". See the documentation at renderful.ai/docs for code examples in Python, JavaScript, and cURL.
What type of content does WAN 2.5 Video Extend generate?
WAN 2.5 Video Extend is a video to video model by Alibaba. Key features include: 3-10s extension, Video input, Optional audio.
Is the WAN 2.5 Video Extend API fast?
WAN 2.5 Video Extend has medium generation speed. Results are delivered via polling or webhook callback for seamless integration.