A clip that ends too soon
The subject was mid-motion at the cut. Continue the action for five more seconds and finish the beat.
AI Video Pro · Extend Video
AI Video Extender: Make Any Clip Longer
The second most-used tool in AI Video Pro. Upload any clip, describe what happens next, and the engine continues from the last frame with the same subject, light and motion.
Most AI clips end a second too early. The extender fixes that by taking the final frame of your video as its starting point and generating what comes next, so the cut is invisible. It works on clips made in AI Video Pro and on footage you upload.
A good continuation prompt describes the next beat of the same scene, not a new scene. The library below covers the ten continuations people run most: keep the action going, settle to a stop, reveal the wider space, change the weather, end on a smile.
How it works
- 1
Upload the clip
Pick a video from your creations or upload an MP4. The last frame becomes the first frame of the extension.
- 2
Describe what happens next
Continue the same scene in one or two sentences. Copy a continuation prompt from the library to start.
- 3
Generate and stitch
Choose the length of the extension. The result is delivered as one continuous clip, ready to download. The credit cost shows before you confirm.
What people make with it
30-second sequences
Chain extensions to grow a 5-second generation into a 30-second scene without a visible join.
B-roll for edits
Turn one good establishing shot into a longer take that covers a voiceover or a caption.
Vertical video for phones
Extend a 9:16 clip so it fills the full length of a short-form post instead of looping awkwardly.
Prompt library
10 prompts distilled from the generations that get finished and downloaded. Copy one, or open it in the generator with the photo you want to animate.
Keep the action going
Continue the exact same scene and motion. The subject keeps doing what they were doing at the same pace. Same lighting, same camera, no cuts.
The default continuation.
Settle to a stop
The motion slows naturally and the subject comes to rest, looking toward the camera. The camera stays where it was. No new elements.
Camera keeps pushing in
The scene continues while the camera slowly pushes in toward the subject. Everything in the frame keeps its current motion.
Turn and walk away
The subject turns and walks away from the camera at a relaxed pace. Same outfit, same background, the camera holds still.
Reveal the wider space
The camera slowly pulls back to reveal more of the surrounding space. The subject and lighting stay consistent with the previous frames.
Weather rolls in
Clouds gather and soft rain begins to fall while the subject continues the same action. Light gradually cools. No camera movement.
Product reveal continues
The product keeps rotating slowly to show the other side, then settles centered. Studio lighting unchanged, reflections consistent.
Timelapse continues
Continue the timelapse: the light keeps moving across the scene at the same speed, shadows lengthen, nothing else changes.
End on a smile
The subject finishes the movement, looks at the camera and smiles. Hold the smile for the final two seconds. Camera still.
Loop-friendly ending
The scene continues and gradually returns to the position of the first frame so the clip can loop. Same motion style, same lighting.
What makes an extension seamless
Continuity words do the work: "same", "continue", "keeps", "unchanged". Anything that introduces a new subject, a new location or a new camera angle tells the engine to cut, and the join shows. Describe the next beat of the same shot.
Extend in short steps. Two five-second extensions with a check in between beat one fifteen-second extension that drifts.
Your own footage
Uploaded videos are extended the same way. Trim so the last frame is clean and well lit, since that frame anchors everything that follows. Uploads are checked automatically before generation; GoCrazyAI is for adults, and the people in your footage must be adults who have agreed to appear.
Frequently asked questions
- How much longer can a video get?
- Each extension adds five to fifteen seconds depending on the engine, and extensions can be chained. Thirty seconds is a comfortable total before you should re-check consistency.
- Does it match the original clip?
- The extension starts from your clip’s last frame and is prompted to keep the same subject, lighting and motion, so the join is designed to be invisible. Continuity words in the prompt keep it that way.
- Can I extend a video I did not make here?
- Yes. Upload an MP4 and extend it the same way. Uploads are checked automatically before generation.
- Who can appear in the footage?
- GoCrazyAI is for adults (18+). Use your own footage or footage of adults who have agreed to appear.
- Is the extended video marked as AI-generated?
- Yes. The extension is AI-generated and the export carries provenance metadata.
- What does it cost?
- Extensions are paid with credits or a subscription. The exact credit cost for the length you choose is shown on the Generate button before you confirm.
Ready to try it?
Open AI Video Pro, upload a photo and paste a prompt from this page.
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