AI video editor: edit a video with a prompt

Upload a clip and describe a change: “make it night”, “change the jacket to red”, “anime style”. Choose HappyHorse Edit, Kling O3, Gemini Omni or Seedance 2.x. Source limits vary by model: Seedance 2.5 accepts up to 30 seconds. You can also transfer motion and camera from a reference clip to your images.

How does AI edit a video?

An AI video editor changes clothes, objects, background, time of day or visual style with a prompt. The With a prompt sub-mode supports HappyHorse 1.0 Edit, Kling O3 Transformation, Gemini Omni, Seedance 2.0 Mini, Fast, Pro and Seedance 2.5. HappyHorse, Kling O3 and Gemini Omni keep the source length. Seedance creates an updated clip from your source video and lets you choose the output duration and enable sound. The From a reference sub-mode transfers motion, camera and style to images and a prompt using Seedance 2.0 and 2.5, Wan 3.0 or Kling O3.

How to do it

  1. Upload a video

    Upload a source within the selected model’s limits: up to 15 seconds for HappyHorse Edit or 30 seconds for Seedance 2.5.

  2. Describe the change

    One edit at a time: “make it night”, “change the jacket to red”, “anime style”. You can attach style reference images.

  3. Choose a model

    HappyHorse Edit, Kling O3 Transformation, Gemini Omni or Seedance 2.x — compare duration, resolution and sound support.

  4. Start the edit

    The price in credits is shown on the button before you start. Click Edit video.

Tips for better results

  • Ask for one change at a time — the result is more precise.
  • To set a specific look, attach a style reference image.
  • To reuse the motion and camera of your clip on new frames, use the From a reference sub-mode.
  • Kling O3 outputs up to 4K but does not create sound — keep that in mind for clips with audio.
  • To change the background, name it directly: “background — a city at night”.

How much does AI video editing cost?

The price in credits is shown on the button before you start and depends on the clip duration and quality. Plans start from $10 per month. Try it for free — 5 credits on sign-up.

Frequently asked questions

Can AI edit videos?

HappyHorse 1.0 Edit, Kling O3 Transformation, Gemini Omni, Seedance 2.0 Mini, Fast, Pro and Seedance 2.5 support prompt editing. Seedance 2.0 and 2.5, Wan 3.0 and Kling O3 also work from a reference clip.

How do I edit a video with AI?

Upload a source within the selected model’s limits, describe the change in What to change and click Edit video. With Seedance, you can choose the output duration and enable sound.

How do I change the background of a video?

Describe the new background in the What to change field, for example “background — a snowy forest”. The motion of the subject and the camera stays the same.

Can the editor make a video longer?

With Seedance, you can choose the new clip’s length within the model’s limits. HappyHorse Edit, Kling O3 Transformation and Gemini Omni keep the source length. Choosing a new duration does not guarantee an exact continuation of the original scene.

What is editing from a reference?

It transfers the motion, camera and style of your clip to images and a prompt. This sub-mode runs on Seedance 2.0 and 2.5, Wan 3.0 and Kling O3.