Kling V4 Video Edit: change one thing, keep the shot
Kling V4 Video Edit rewrites a 3 to 30 second clip from a text instruction and keeps its scene and motion. Edit recipes, limits and a checklist before you run.
You shot it, the movement is perfect, and the weather is wrong. Or the jacket, or the time of day. Kling V4 Video Edit is built for that: give it a clip and an instruction, and it keeps the scene, the subject and the motion while it changes what you described. Below are recipes you can paste, and the checks that keep an edit from turning into a new film.
What goes in
- Video (required). 3 to 30 seconds. Anything longer is trimmed to the first 30.
- Prompt (required). The edit, in plain words. Refer to the clip as @Video1.
- Images (optional, up to 10). A subject, object or style to bring in. Refer to them as @Image1, @Image2 and so on, in array order.
- Audios (optional, up to 3). Five to thirty seconds each, to guide voice and sound. Refer to them as @Audio1 and so on.
- Keep original sound. On by default. Turn it off and new synchronized audio is made instead.
- Resolution, duration, aspect ratio. 720p or 1080p. Duration and ratio follow the input video unless you set them.
Recipes, one change each
Edit @Video1: change the weather to heavy rain at night. Keep the same street, the same people and the same movement. Wet pavement, streetlight reflections, no other changes.Edit @Video1: replace the red jacket worn by the walking person with the green waxed coat shown in @Image1. Keep the walk, the camera and the background untouched.Edit @Video1: restyle the whole clip as a hand-painted watercolour animation, soft edges, visible paper texture. Keep every movement and the framing exactly as they are.Edit @Video1: remove the parked white van on the left side of the street and fill the space with the curb and trees behind it. Change nothing else.Checklist before you run
- Is the clip between 3 and 30 seconds, and is it the part you want edited, not the start of something longer?
- Is there one change in the prompt? Two unrelated changes make both worse. Do them in two passes.
- Does a reference image show the new subject clearly, from the angle it has in the clip?
- Do you want the original sound? Leave it on unless the edit changes what is being said or heard.
- Is the output ratio what you need? If you leave it empty it follows the input.
Why two passes beat one clever prompt
An edit that swaps a coat, changes the weather and restyles the picture asks the model to rewrite too much at once, and the original motion is the first thing to give way. Chain them instead: run the biggest change first, check the result, then feed that result back in as @Video1 for the next small one. Each pass is cheap to judge and easy to undo by going back one step.
If you would rather build a shot from scratch than fix one, start from a text-to-video prompt. For edits on a still frame, how to write image edit prompts uses the same instinct, and the sound guide for video covers the other half when the audio needs replacing.
The honest limitation
It is an edit, not a re-shoot. Fast action, crowds and small faces are hard to hold steady, text on signs may change, and a large change to a subject can pull the motion along with it. Trial on a short piece of the clip first, and only then run the full length at 1080p.
Questions
How long can the input video be?
From 3 to 30 seconds. A longer video is trimmed to its first 30 seconds.
Does it keep the original sound?
Yes, by default. Switch that option off to get new synchronized audio generated for the edited clip.
Can I bring in a specific object or person?
Attach up to 10 reference images and point at them in the prompt as @Image1, @Image2 and so on, in array order.
