How to use AI Video Expander to expand a video frame

THE QUICK ANSWER

Video expansion adds space around the frame, rather than extra seconds. In AI Video Expander, upload a clip, choose its destination ratio, inspect the full source and save a layout. Watch the recorded before-and-after example to see how AI can fill that surrounding space.

Screenshots show the current workspace. Click any image for a closer look.

Choose a short, clear source

Start with a short clip with a stable camera and a clear subject. Use a clean export without encoded black borders. Keep your original file so you can compare details after processing.

Pick a useful destination

Decide where this version will be used. Choose the required aspect ratio and inspect how the full source fits. Start with one output; additional formats are optional.

A portrait source fitted into a 16:9 landscape expansion layout — Here, 16:9 adds space beside a portrait source. Choose 9:16 when your destination needs a vertical layout instead.

Use the preview to check composition

The checkerboard marks the area for new scenery. Keep the original source as large as practical, and add a simple description of the surrounding environment if needed.

Source size and Describe the surroundings controls in the video expansion editor — Open Creative controls to adjust Source size or describe the surroundings. Smaller source placement asks for more new scenery.

Compare an example, then save your composition

Open Examples to inspect an actual generation. The four-sided example plays the original and expanded clips together: drag the divider and watch the edges, movement and source details. Check your own layout directly in the canvas and click Save draft to keep it. My videos stores the settings in this browser. Uploaded files need to be selected again when you reopen a draft.

Synchronized original and AI-expanded horse clip with a comparison divider — Inspect a real result in motion before choosing expansion. This example is prerecorded and does not change when you edit your own canvas.

A FEW USEFUL ANSWERS

Common questions

What is the difference between video expansion and video extension?

Expansion, also called video outpainting, adds picture area around the frame. Extension adds time. This product focuses on spatial expansion and does not create extra seconds.

How do I expand only one side of a video?

Use the Custom video size workspace and drag the orange edge on that side. You can save an asymmetric layout.

Does writing a prompt generate the missing background?

Use the surroundings field to describe the scene, light and camera movement. Save that direction with your composition.

PUT IT INTO PRACTICE

Make room around your next video.

Upload a clip and explore the canvas, source size and surrounding space in the video outpainting editor.

Try the expansion preview See real examples

Upload your clip, shape the canvas and save your composition.