video-extend
Alibaba WAN 2.6 Video-Extend turns short clips into longer videos with preserved or generated synchronized audio for continuity. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.
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使用 $10 您可以運行此模型大約 40 次。
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README
Alibaba Wan 2.6 Video Extend
Wan 2.6 Video Extend is Alibaba's video extension model that seamlessly extends existing videos by generating additional frames. Upload a video clip and describe the continuation — the model generates smooth, coherent footage that naturally extends your original content by 5, 10, or 15 seconds.
Why Choose This?
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Seamless extension Generates new frames that naturally continue the motion and style of your original video.
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Flexible duration Extend videos by 5, 10, or 15 seconds based on your needs.
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Multi-resolution support Output in 720p or 1080p to match your source footage.
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Audio support Optional audio input for synchronized video extension.
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Prompt-guided generation Describe how the video should continue for precise control over the extension.
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Negative prompt support Specify elements to avoid in the extended footage.
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Prompt Enhancer Built-in tool to automatically improve your descriptions.
Parameters
| Parameter | Required | Description |
|---|---|---|
| video | Yes | Source video to extend (URL or upload) |
| prompt | Yes | Describe how the video should continue |
| audio | No | Audio file for synchronized extension (URL or upload) |
| negative_prompt | No | Elements to avoid in the extended video |
| resolution | No | Output resolution: 720p (default), 1080p |
| duration | No | Extension length: 5, 10, or 15 seconds (default: 5) |
| shot_type | No | Shot composition: single (default) or multi |
| enable_prompt_expansion | No | Enable prompt optimizer (default: disabled) |
| seed | No | Random seed for reproducibility |
How to Use
- Upload your video — provide the source video you want to extend.
- Write your prompt — describe how the video should continue (motion, action, scene changes).
- Add audio (optional) — upload audio for synchronized extension.
- Add negative prompt (optional) — specify elements you want to avoid.
- Choose resolution — select 720p or 1080p based on your source footage.
- Set duration — choose 5, 10, or 15 seconds of extension.
- Run — submit and download your extended video.
Pricing
| Duration | 720p | 1080p |
|---|---|---|
| 5 s | $0.50 | $0.75 |
| 10 s | $1.00 | $1.50 |
| 15 s | $1.50 | $2.25 |
Billing Rules
- 720p rate: $0.50 per 5 seconds (2× base)
- 1080p rate: $0.75 per 5 seconds (3× base)
Best Use Cases
- Content Extension — Extend short clips into longer sequences for storytelling.
- Social Media — Transform brief moments into full-length videos for TikTok, Reels, or Shorts.
- Film & Production — Extend establishing shots or B-roll footage.
- Looping Content — Create extended versions of clips for backgrounds or displays.
- Creative Projects — Continue scenes beyond their original capture.
Pro Tips
- Use detailed prompts describing how the motion, camera, and scene should continue.
- Match the resolution setting to your source video for consistent quality.
- Enable prompt expansion for automatically enhanced descriptions.
- Use negative_prompt to avoid unwanted elements or style changes in the extension.
- For best results, use source videos with clear motion direction that can be naturally continued.
- Keep the seed consistent if you want to iterate on the same extension.
Notes
- Both video and prompt are required fields.
- Extension duration options: 5, 10, or 15 seconds.
- Ensure uploaded video URLs are publicly accessible.
- 1080p resolution costs 1.5× the 720p rate.
Related Models
- Wan 2.6 Image-to-Video — Generate video from still images.
- Wan 2.6 Image-to-Video Pro — Pro tier with 4K support.
- Wan 2.6 Text-to-Video — Generate videos from text prompts.