Skip to main content

AI Video Extender: step-by-step guide

Generate a continuation of an existing video.

Generate a continuation of an existing video.

Get the right result: check these first

  • Continue a clip. Upload the video you want to continue and check Extend By. Use AI Video Expander when the goal is a wider or taller frame instead.

  • Audio unavailable. Audio input depends on the selected model and resolution. If the control says Audio unavailable, choose a supported combination or continue without an uploaded track.

  • Recheck extension length. After adding audio or changing the model, verify Extend By and the total estimate before submitting.

Still stuck? Contact support with the tool name, project link or visible ID if available, source duration, model, resolution, Extend By, audio selection, and the transition timestamp. Keep the project while it is reviewed. How to send useful troubleshooting details.

Step by step

  1. Open AI Video Extender and sign in. Add the Original Video.

  2. Confirm the source section or endpoint using the available video controls.

  3. Optionally describe what should happen next in Prompt.

  4. Choose the model, resolution, and Extend By duration. Use Add audio if you want to supply audio for the extension.

  5. Recheck Extend By after adding audio, review the estimate, and select Extend Video. Watch the transition into the new footage before downloading.

Write a continuation prompt

Example: “The camera continues slowly forward while the person walks toward the doorway. Keep the same lighting and setting.” A simple continuation is easier to assess than an abrupt change of scene.

Extend By changed after adding audio

The editor can adjust the extension based on audio length. Recheck it; you can select a longer available extension if you want the video to continue after the added audio ends.

Length versus frame shape

To add time, use Video Extender. To widen or change the framing of the video, use AI Video Expander. For edits within the existing clip, use AI Video Editor.

Cost, limits, and your result

These instructions cover the Dashboard. Sign in to generate and check the displayed credit estimate and access requirements. File limits and settings can depend on the tool, model, and plan. Follow the upload and validation messages shown for your selection.

Review the completed result before downloading. For signed-in projects, see find and download your creations.

If a job is still processing or failed

For a job still processing, check its status before submitting again. For a failed or technically broken output, see generation failures and credits.

Related guides

Did this answer your question?