Kling 4.0 Video Edit

Edit an existing video with a text instruction using Kling 4.0: restyle it, change the setting or swap a person or product while the original motion stays.

📄 About Kling 4.0 Video Edit

Kling 4.0 Video Edit changes an existing video with a written instruction. You upload a clip between 3 and 30 seconds long, refer to it in the prompt as @Video1 and describe what should be different - a new season or time of day, a different art style, a new outfit, or a person or product replaced. The motion, timing and camera of the original clip are kept, so the edited video still lines up with your soundtrack and cuts. Reference images make edits precise. Upload a picture of the new outfit, product, logo or location and refer to it as @Image1; for people and objects that must look exactly right from every side, add an element with a frontal image plus one to three extra angles and call it @Element1. This is how you can swap your own product into stock footage or put the same character into many different clips. The output has the same length as the source video and comes in 720p or Full HD 1080p. On JAI Portal the edit is billed per second: the provider bills the input and output seconds together at a lower per-second rate (at least twice the output length), and the exact price is shown as soon as you add the video. Failed edits are refunded automatically.

✨ Key Features

Edit any 3-30 second video with a text instruction

Keeps the original motion, timing and camera

Reference images (@Image1) and multi-angle elements (@Element1) for precise swaps

720p or Full HD 1080p output

Output length matches the source video

💡 Use Cases

⚡Changing the season, weather or time of day of existing footage

⚡Restyling live action into animation or a specific art style

⚡Swapping a product, logo or outfit into stock or UGC footage

⚡Replacing a person with your own character

🎯 Best For

🎯 Editors and marketers who already have footage with the right motion and want to change what is in it - style, setting, product or person - without reshooting.

👍 Pros

✓Motion and timing of the original clip are preserved

✓Reference images and elements for exact products and characters

✓Full HD 1080p output

✓Simple text instructions instead of masks or keyframes

⚠️ Considerations

△Source videos must be 3-30 seconds and at least 700x700 pixels

△Input and output seconds are both billed

△Heavy changes to the main subject can reduce faithfulness to the original motion

📚 How to Use Kling 4.0 Video Edit

Upload the video you want to edit (3-30 s).

Describe the change and refer to the video as @Video1.

Optional: add reference images (@Image1) or an element (@Element1) for the new product or person.

Pick 720p or 1080p and check the price above the Generate button.

Generate and download the edited video.

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Frequently Asked Questions

Clips from 3 to 30 seconds, at least 700x700 pixels and up to 300 MB.

Yes. Kling 4.0 keeps the motion, timing and camera of @Video1 and changes what you describe.

The provider bills the source and the output seconds together at a lower per-second rate, with a minimum of twice the output length. The exact price appears as soon as you add the video.

You pay per second of video with pay-as-you-go credits. 1080p costs about 1.5 times as much as 720p, and the exact price for your settings is shown above the Generate button before you start. Failed generations are refunded automatically.