How to add more seconds to an existing video

Generating one long video blind and hoping it holds together is expensive when it does not. Generating a short clip, checking it works, and extending the winner is the cheaper path — and it is also how you get past the length limits of a single generation call.

Step by step

1. 1

   Upload the video to continue

   The clip whose ending you want extended.

2. 2

   Say how many seconds to add

   This is the added length, not the total length of the result — asking for 5 seconds on a 10-second clip gives you 15 seconds total if you choose to stitch it.

3. 3

   Describe what happens next, or leave it to continue naturally

   An empty prompt just continues the existing motion and scene.

4. 4

   Choose whether to get the full clip or just the new part

   Stitching returns one continuous file. Turning it off gives you only the newly generated seconds, useful if you are assembling the edit yourself.

What makes the difference

• Extend a clip you already like rather than generating one long clip from nothing — you are only paying for the part that is new, not regenerating what already worked.
• Short, repeated extensions are more predictable than one long extension in a single call.
• This continues an existing video's motion and scene — for adding motion to a still photo instead, use the photo animator.

Questions