Storytellers on short clips
A six-second cap forces scenes to end mid-thought. Chaining extensions lets a generated scene run to its natural beat — arrival, action, aftermath — instead of the model's timer.
Last frame in · The next seconds out · Free engine by default
AI Video Extender
Continue a clip past the frame where it stopped — upload the last frame, describe what happens next, and the scene keeps going instead of starting over.
Continue, don't restartSteer the next secondsFree engine by default
Our own test
One clip, then its continuation
Both clips were generated on this page's free engine — the second continues the first from its exact final frame, using the same upload-and-prompt flow this page hands you. Every output is AI-generated, so your seam and your scene will vary. Watch the handoff, not the boat.
Original clip
The original clip — and where it stops
A paper boat drifts down a rain-water stream in golden light, and after six seconds the clip simply ends — mid-drift, the way every generated clip ends. This is the frame the continuation anchors on: the calmer that final frame, the cleaner the pickup.
Generate a first clipContinued
The extension — same scene, next seconds
The final frame went back in with a continuation prompt: keep drifting, pass the drain grate, spin once in the eddy. The stream, the light and the boat carry over because the continuation starts from the exact pixels the first clip ended on — that is the whole trick, made visible.
Extend your own clipAI video tool
What is an AI video extender?
It is the answer to the most common complaint about generated video: the clip is good and then it just stops. A video extender takes the last frame of an existing clip as its starting image and generates the seconds that follow, so the scene, the light and the subject carry over instead of resetting. Chain the trick and a six-second clip becomes twelve, eighteen, as long as the story needs.
Video tool
The technique is honest and worth understanding, because it is what every such tool actually does under the hood: video models generate forward from an image, so continuing means handing the model your clip final frame and a prompt for what happens next. The pair on this page is our own run — a paper boat drifting down a rain stream, generated once, then continued from its final frame with a prompt asking the boat to keep drifting and spin once in an eddy.
Watch the cut point, because that is where the join either holds the world together or quietly rebuilds it. The practical consequence is that the last frame of your source clip matters more than the whole rest of it: a blurred or half-occluded final frame gives the model almost nothing to carry forward, while a clean, well-lit one lets the continuation pick up the subject, the light and the background without a visible seam.
If a join is not working, trim a few frames off the end and try again before you rewrite the prompt.
Creative engine
How the extension comes together
Last frame in, continuation prompt written, next seconds out — repeat until the story is told.
1 frame
Anchor in
+6 seconds
Per extension
Free engine
Default model
Seamless pickup
The continuation starts from your clip exact final frame: same scene, same light, same subject, no reset. If the light shifts or the subject changes weight across the join, the model has started a new shot rather than continued yours.
Steerable continuation
The new seconds follow a new prompt, so you can hold the motion or turn the scene while keeping the world. That is the useful half — a continuation that only repeats what already happened buys you length without buying you anything to watch.
Continuation pairs naturally with the other camera tricks here: freeze the peak with the bullet time effect and carry on past the release, keep a dance running longer with the twerk generator, or start from a still photo in bring photos to life and stretch the moment it ends.
How to use
Extend a video in three steps
From a clip that ends too soon to one that ends on purpose.
Capture the last frame
Pause your clip on its final frame and export or screenshot it. Choose a frame where the subject is clearly visible and motion is settled — the model continues what the frame shows, so a clean anchor beats a blurry one.
Upload and describe what happens next
Switch to image-to-video, upload the frame, and write the continuation the way you would direct the next shot: what keeps moving, what changes, where the camera goes. Repeat the scene's look in words — same light, same setting — to hold continuity.
Generate, then chain if needed
Run the extension and cut it onto the original in any editor. Need more? Take the new clip's last frame and go again — each pass adds seconds while the scene carries forward. If an extension pass fails, its credits come back on their own (content-policy blocks are the one exception).
Who it's for
Who stretches a clip
Anyone whose best generation ended four seconds before the idea did.
Editors saving a good take
When one generation finally nails the look, re-rolling is a gamble. Continuing from its last frame keeps the take you fought for and buys the extra seconds the edit needs.
Answers
Video extender FAQ
Common questions about continuing clips on Kavel.
Just the final frame. The generator takes an image as its starting point, so the flow is: pause on the last frame, screenshot or export it, upload, and prompt the continuation. It is one honest step more than a magic button — and in exchange you choose exactly which frame the continuation grows from, which is where most of the control lives.
The starting pixels match perfectly — the continuation begins on your exact final frame. From there the model re-imagines motion, so the match stays strong for scene, light and subject, and weakest for fast motion crossing the cut and for anything off-screen, which the model never saw and must invent. A settled anchor frame and a prompt that restates the scene's look give the cleanest seam.
There is no hard cap — each extension's last frame can seed the next. Drift is the real limit: tiny changes compound with each generation, so scenes hold together well for two or three chained passes and get progressively looser after that. For long pieces, plan cuts where a scene change is natural and start fresh anchors there.
Yes — that is half the point. The continuation follows your new prompt, so from the same anchor frame you can keep the motion going, introduce something new, or swing the mood. The world carries over; the direction is yours.
Each extension is a normal generation on Kavel's free video engine, and new visitors start with free credits. The estimate shows before each run and a failed generation is refunded automatically (unless it broke the content policy) — so a twelve-second story costs two short runs, not an upgrade.
Kavel pricing — you pay per generation, never per seat
Credits are shared across everything Kavel runs. You see the cost before each run, and a failed job is never charged.
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More tools
More ways to shape a clip's time
The tricks on either side of an extension, and the studio they run in.
Give your clip the seconds it deserved
Upload the last frame, describe what happens next, and the scene continues instead of starting over.