Koor AI

Feature · Reference to video

Kling 4.0 reference to video

Kling 4.0 Reference to Video builds a new clip from the material you give it: characters and products from images, motion and camera work from clips, voices or sounds from audio. You point to each one by name in the prompt.

Try Reference to Video

In short

  • Add up to 10 images, 5 videos and 3 audio clips; at least one reference is required.
  • Refer to them in the prompt as @Image1, @Video1, @Audio1 and so on.
  • Choose 3, 5, 10, 15, 20, 25 or 30 seconds at 720p or 1080p; audio is always generated.
  • Images only: 5 or 8 credits per second. With reference videos: 3 or 4 credits per counted second.

What each reference type is for

  • Images: a character, outfit, product or location that should appear in the video.
  • Videos (up to 30 seconds in total): motion, choreography or camera movement to borrow.
  • Audio: a voice, line or sound the video should use.

Name your references in the prompt

References are numbered in upload order within each type. Say what each one contributes, so the model does not have to guess.

Example reference prompt
@Image1 is the main character. She walks through the market in @Image2, copying the camera move from @Video1, and says the line from @Audio1 to the stall owner.

Price in this studio

Without reference videos, Reference to Video costs 5 credits per second at 720p and 8 at 1080p: a 10-second 720p clip is 50 credits.

With reference videos it costs 3 credits per counted second at 720p and 4 at 1080p. Counted seconds are the output length plus the longer of the output length and your reference video time (at most 30 seconds). A 5-second clip with 8 seconds of reference video counts 13 seconds: 39 credits at 720p.

How to make one here

  1. Choose Kling 4.0 · Reference to Video in the model selector.
  2. Upload your images, clips and audio — only material you own or have permission to use.
  3. Write the prompt with @Image1, @Video1 and @Audio1, pick the length, resolution and aspect ratio, and check the quote.

Frequently asked questions

How many references can I use?

Up to 10 images, 5 videos and 3 audio clips, and at least one. Reference videos can total up to 30 seconds.

Do I have to use @Image1-style names?

It is strongly recommended. Naming each reference tells the model what it is for.

Which aspect ratios can I choose?

16:9, 9:16 or 1:1; other choices let the model follow your references.

Can I edit an existing video instead?

Yes — use Kling 4.0 · Video Edit, described in the Kling 4.0 video editing guide.

What if a generation fails?

Confirmed failed generations return the reserved credits to your balance.

Sources

Updated 2026-10-26. Koor AI is an independent video studio, not affiliated with or endorsed by Kuaishou or Kling AI. Kling model names belong to their respective owners. Each generation uses the model selected in the workspace.