Alibaba Wan 2.6 Video Extend

Alibaba Wan 2.6 Video Extend

Playground

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.

Features

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?

• Seamless extension Generates new frames that naturally continue the motion and style of your original video.

• Flexible duration Extend videos by 5, 10, or 15 seconds based on your needs.

• Multi-resolution support Output in 720p or 1080p to match your source footage.

• Audio support Optional audio input for synchronized video extension.

• Prompt-guided generation Describe how the video should continue for precise control over the extension.

• Negative prompt support Specify elements to avoid in the extended footage.

• Prompt Enhancer Built-in tool to automatically improve your descriptions.

Parameters

How to Use

1. Upload your video — provide the source video you want to extend.
2. Write your prompt — describe how the video should continue (motion, action, scene changes).
3. Add audio (optional) — upload audio for synchronized extension.
4. Add negative prompt (optional) — specify elements you want to avoid.
5. Choose resolution — select 720p or 1080p based on your source footage.
6. Set duration — choose 5, 10, or 15 seconds of extension.
7. Run — submit and download your extended video.

Pricing

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.

# Submit the task
curl --location --request POST "https://api.wavespeed.ai/api/v3/alibaba/wan-2.6/video-extend" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}" \
--data-raw '{
    "resolution": "720p",
    "duration": 5,
    "shot_type": "single",
    "enable_prompt_expansion": false,
    "seed": -1
}'

# Get the result
curl --location --request GET "https://api.wavespeed.ai/api/v3/predictions/${requestId}/result" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}"