Video Extend
Continue an existing video with Seedance 2.5 and a prompt for what happens next.
Start with the video you want to continue, then describe what happens next. Images and audio can provide optional supporting context.
jpeg, png, webp, mp4, mov, mp3, wav
Generate multiple videos in one batch with the same settings, up to 10 videos.
Reference input guide
Seedance 2.5 supports text-to-video, first-frame or first-and-last-frame image-to-video, and reference-to-video with up to 50 mixed image, video, and audio materials.
Type @ to quickly insert your uploaded files into the prompt.
Select a file to insert it as a reference (e.g. @Image1, @Video1, @Audio1), so the AI knows exactly which material to use.
- Up to 30 reference images
- Up to 10 reference videos; each 2–30 seconds and 30 seconds total
- For video editing tasks, video materials must be 4–30 seconds long, with a minimum duration of 4 seconds
- Up to 10 reference audio clips; each 2–30 seconds and 30 seconds total
- Maximum 50 materials in total; provide at least one image, video, or audio
- Output: 480p or 720p, from 4 to 30 seconds
- Text and reference modes: adaptive, 16:9, 9:16, 1:1, 4:3, 3:4, or 21:9. Image mode: adaptive only
- Text + Image
- Text + Video
- Text + Audio
- Text + Image + Video
- Text + Image + Audio
- Text + Video + Audio
- Text + Image + Video + Audio
Audio may be used as the only reference material. Use @Image1, @Video1, or @Audio1 in the prompt to map each material clearly.
What is Video Extend?
Video extension uses a source clip as context for a generated continuation. Describe the next action or camera movement to explore how the scene could develop beyond its existing ending.
Key Features of Video Extend
Give an existing scene room to continue with Seedance 2.5.
Continue from your source clip
Start with a video and give the model context for a continuation. Extension mode is already selected so you can focus on what comes next.
Give the continuation a purpose
Describe the next action, a slower reveal or a new camera move. A specific continuation prompt gives the model a clearer narrative direction.
Guide continuity with context
Use the source and supported references to communicate the subject and atmosphere. Review the join and visual details when preparing your final sequence.
How to use Video Extend
Add a clip, describe what happens next, and choose an extension duration.
Add a source clip
Upload the video you want to continue.
Describe the next moment
Write what should happen next and select the available duration setting.
Generate the continuation
Review the estimate, create the result and inspect continuity with the original.
Use Cases
Create additional footage for a story, product reveal, music edit, or closing scene.
Short Film Continuations
Continue a character’s action after the source clip ends. Describe the next movement or event to develop a longer story beat, then review how the continuation connects before placing it in your sequence.
Longer Product Reveals
Give a product shot more time to develop beyond its original ending. Describe how the camera or subject should continue moving, creating additional material to review for a launch video or promotional edit.
Music Video Editing
Create more visual material when a promising clip ends before the section of music you want to cover. Continue the scene’s action, then trim and align the generated footage with the soundtrack in your editor.
Establishing Shots for Film
Extend a landscape, exterior, or room shot when your sequence needs more time to introduce a location. Describe a continuation of the atmosphere and camera movement, and choose the portion that fits your edit.
End Cards & Closing Moments
Extend the final scene to make room for a closing message in your editing workflow. Describe a quiet continuation, then add your logo, caption, or call to action over the selected footage in your editor.
Action Sequence Development
Explore what happens immediately after a gesture, movement, or encounter. Use the source clip as context for the next action and review the continuation as a candidate for a longer performance or narrative sequence.
Frequently asked questions
Find answers about inputs, available controls, and the generation workflow.
Which model extends the video?
This page uses Seedance 2.5 with video extension enabled.
Is an uploaded video required?
Yes. The source video provides context for the continuation.
Is the transition guaranteed to be seamless?
No. Generative results can vary. Review motion, subject details and the transition before assembling a final sequence.
Can I edit the original scene here?
Use Video Editor when your goal is to transform existing footage instead of continuing it.
How many credits will it use?
The generator displays the required credits before you submit. The cost depends on the selected settings and service.
There is more to your story.
Start with an idea. Make a first version. Take it further.
Extend a video