How to cut and caption short video ads with AI

To cut and caption a short video ad with AI, edit the video itself rather than generating it again: trim the ends, cut out the weak moment, reorder the clips to the format's pacing, then add captions and titles in your brand's style. Each edit should make a new version and keep the original.

That is Edity's job on Sume. It cuts, trims and retimes clips on the timeline, adds captions and titles, and renders a new version while keeping the original (Edity).

Why edit instead of re-prompting?

A new prompt makes a new clip, and the parts that were already right can change. Editing keeps them: the shot you liked stays, and only the cut, the order or the text moves. That is also how a human editor works, so the result is easier to review.

What can Edity change?

• Trims and cuts, including splitting out a stumble and closing the gap
• The order and length of clips, to match the format
• Captions and titles, built with HyperFrames, in your brand's style
• A new version for each edit, with the original kept

What happens to the finished cut?

Posty can post it to your accounts or run it as an ad, which posting from one chat covers. You can also open the video in the editor and change it by hand.