- "prompt": ,
- "duration": 5,
- "resolution": "768p",
- "video": ""
No effects available
AI Video Extender
Make a video longer with AI. Upload a clip, describe what happens next, and the AI continues the scene from the last frame - adding 5, 10 or 15 seconds to the end of your video.
A clip often ends a moment too soon: the shot is perfect but only four seconds long, the action stops before it lands, or a video made with an AI generator hits its length limit. An AI video extender picks up where the clip leaves off. You upload the video and describe what should happen next, and the AI studies the last frame - the scene, the lighting, the subject, the camera position - and generates a new segment that continues from it. The new part is attached to the end of your clip, so you get one longer video instead of two pieces to stitch together. You decide how much to add, from 5 to 15 seconds, and what happens in it: the action can simply carry on, something new can enter the frame, or the camera can start to move. It is useful for stretching short AI-generated clips, giving b-roll enough length to cut with, letting a shot breathe before a transition, and trying different endings for the same scene. The more concretely you describe the continuation, the closer the result follows it. Each run produces a different continuation, so you can generate again for another take, or extend the result once more to build a longer sequence step by step.
At a glance
Continues from your last frame
Same scene, more time.
Picks up where the clip ends
The new part starts from the final frame, so the scene, light and framing carry over.
One finished video
The extension is attached to your clip. You download a single MP4.
You direct what happens
A sentence is enough.
Describe the continuation
Tell the AI what moves, what enters the frame or how the camera travels.
5, 10 or 15 seconds
Add a short beat or a longer stretch of new footage.
Flexible and fair
Pay for what you add.
Standard or HD
Standard is faster and cheaper. HD gives a sharper result.
Priced by the seconds added
The length of your original clip does not change the price.
How to extend a video with AI
Upload, describe, extend.
Upload your video
MP4, MOV or WebM, up to 60 seconds. The new part starts from the last frame, so end on a clear shot.
Describe what happens next
Say what should be seen: a small boat glides across the lake, the camera slowly pans right, the dog runs toward the door.
Choose length and quality
Add 5, 10 or 15 seconds in Standard or HD, generate, and download one MP4 with the new part attached.
What people use it for
Longer AI clips
Take a short generated clip past its length limit.
B-roll
Give a shot enough seconds to cut with.
Smoother endings
Let the action finish instead of cutting off.
Alternative endings
Try different continuations of the same scene.
Social videos
Stretch a clip to fit a sound or a format.
Longer sequences
Extend the result again to build a scene step by step.
Frequently asked questions
How do I extend a video with AI?
Is this AI video extender free?
How much longer can I make a video?
Does it keep my original video?
What should I write in the description?
Will the join be visible?
Can I extend AI-generated videos?
Does the new part have sound?
What resolution is the result?
Can I add footage before the start of a video?
Good to know
The result uses the quality you pick — The finished video, including your original part, is saved at 480p or 768p. A sharper original is scaled down. Use the AI Video Upscaler afterwards if you need more resolution.
It continues from the end only — The new part is added after the last frame. It cannot add footage at the start or in the middle.
The new part is invented — The AI makes up what happens next from your description and the last frame. People and objects can drift from how they looked earlier in the clip.
Sound in the new part is generated — Your original audio is kept, and the added seconds come with AI-generated sound. If someone is talking in the clip, the new part can contain made-up, meaningless speech - mute or replace it in an editor.
Each run is different — Generating again gives a different continuation of the same clip.
Related tools & models
Let the scene keep going
Upload a clip, describe what happens next and add up to 15 seconds.