Swap a clip

When you film a line more than once, Auto Edit works out which recordings say the same thing and puts one of them in the video. It marks that one AI pick and says why it won:

• Clearest: the cleanest delivery of the line.
• Fewest ums: the fewest filler words.
• Most complete: the one that says the whole line.
• Latest: the last one you filmed.

The others stay with the video, so a line you'd rather say another way is never more than a tap away. A line you filmed once has nothing to swap.

A clip with other recordings shows a badge with their count. Tap it on iPhone, or click it on the web and the Mac, and the list opens: each recording with its words, its length and a play button. The AI pick wears its reason, and the one in the video is marked In use.

Press play to hear a recording alone; the video doesn't change. Tap or click one to swap it in. Bang AI selects the new clip and plays it once, and the whole swap is one undo step. Text, pictures and sounds that come after the line move by the difference in length, and the captions become the new recording's own words.

In the iPhone and Mac apps, the script panel folds a line's other recordings into its row and shows a dot for each one. Swipe the row sideways to move to the next recording or the one before; the list stops at either end rather than wrapping round. It is the quickest way to compare a few versions of the same sentence while you read down the script, and each swipe is a swap you can undo.

Select a clip and press Replace, the tool next to Split.

• On iPhone, the camera opens over the editor with the clip's words in the teleprompter. Film it again as often as you like, slide the footage under the window, which is exactly the clip's length, and press Use these. The new clip plays at once, and its captions follow once Bang AI has its words.
• On the web, Replace Clip opens a picker: Your clips or From your computer. A clip shorter than the one you are replacing is marked Too short. Slide to line up the new clip, then press Use these.

The Mac app doesn't offer Replace, since it doesn't film. A clip you replaced on iPhone or the web still plays on the Mac as saved.

If you used Extract audio on a clip, Replace changes only the picture. The new clip goes in muted, every sound stays where it was, and Bang AI says Clip replaced, its sound stays. Use it to lay a product shot or a demo over a line you were happy with, the way you would cut to b-roll, without losing a word of what you said.

On iPhone, Settings, then Search & Editor, then Replace Clips turns the Replace tool on or off. It starts on, and the change applies the next time you open the editor.

With Bang AI added to ChatGPT, Claude or Claude Code, ask in your own words, or paste one of these:

• A swap needs a line you filmed more than once, in a version Auto Edit made.
• Swapping works on iPhone, the web and the Mac. Replace is on iPhone, where it films a new clip, and on the web, where you pick one from your clips or your computer.
• A replacement must be at least as long as the clip it replaces.
• The Replace Clips switch is on iPhone only, under Settings, then Search & Editor.
• From a chat, swaps and replacements use only the clips already in that video, and each edit saves over the video.
• A chat edit can be undone only in the Bang AI web editor, and only when the video is open there as the edit lands.