KuaishouVIDEOGuest engineNative audio

Kling 4.0 on VisionX.

Kling 4.0 takes: any length from three to thirty seconds, from text, frames, references or a clip.

1model on rosterfrom 13.75 VXper shotup to 10reference imagesCast-readyidentity locked
01

What Kling 4.0 is on the roster

THE MODEL

Kling 4.0 is the next generation of Kuaishou’s Kling, and it runs shots of up to thirty seconds, twice the length of Kling 3.0. It renders from text, a first frame, a first and a last frame, or reference images and clips, at 720p or 1080p, and it edits a clip from a written instruction.

Kling earns its slot on physical motion, and a longer take gives that motion room to play out. You choose any whole length from three to thirty seconds, and every shot is quoted before it renders.

Up to thirty seconds

Any whole second from three to thirty, rendered as one shot. That is twice the length Kling 3.0 reaches.

Open on a frame, land on a frame

Give it a first frame, or a first and a last frame, and the shot starts on the image you approved and can end on another.

References, or a clip to change

Build a shot from up to ten reference images and five reference clips, or attach one clip and say what to change. An edit keeps the clip’s length.

720p to find it, 1080p to keep it

Two rungs, each quoted per second before you run it, so a long take is priced before it is held.

02

What Kling 4.0 actually does

CAPABILITIES

The next Kling, and what it takes.

Three to thirty seconds

Any whole second from three to thirty, as one shot. Kling 3.0 stops at fifteen.

Duration

A first frame, and a last

Open the shot on a still, or on one still and end it on another, and the model works out the motion between them.

Frames

Text to video

Describe the shot and choose 21:9, 16:9, 1:1 or 9:16. A shot built on a frame follows the frame instead, and a referenced shot can follow its references.

Text

References and edits

Build a new shot from up to ten reference images and five reference clips. Or attach one clip and say what to change, and the edit keeps its length.

References

720p or 1080p

Pick a rung and it is quoted per second before you run it, so even a thirty-second take is priced before it is held.

Resolution
03

Every variant, exactly as the studio runs it

SPEC SHEET

These rows are read live from the engine registry and the pricing engine. What you see here is what the composer quotes.

ModelModesResolutionsRatiosDurationsVX
Kling 4.0Kling 4.0T2V · I2V · V2V720p · 1080p21:9 · 16:9 · 1:1 · 9:163 to 30s13.75 VX · 5s T2V at 720p

Self-serve rates run as low as $0.085 per VX at scale. The composer quotes the exact VX for your shot, references included, before you run it.

04

How to write for Kling 4.0

PROMPTING

A frame carries the composition. The prompt carries the motion.

Say what moves

With a first frame attached, describe the motion and the camera rather than describing the picture again.

Match the length to the beat

A long take needs enough happening in it. Write the beats in order so the thirty seconds do not repeat one idea.

Find the shot at 720p

Use the lower rung to find the move, then re-run the keeper at 1080p.

Name each attachment

Cite references by their card names, Image 1 or Video 1, so each line of the prompt says which picture or clip it is about.

05

What teams route to Kling 4.0

USE CASES

Where Kling 4.0 earns the pick.

Long physical takes

Dance, sport and fabric that need more than fifteen seconds to play out.

A move between two boards

Pin the first and last boards of a beat and let the model carry the motion between them.

A hero frame that has to start the shot

Open on the approved product or character still and let it move.

Change a take you already have

Swap a wardrobe piece, the weather or the set in an existing clip and keep its timing.

FAQ

Kling 4.0, answered

How is Kling 4.0 different from Kling 3.0?
Kling 4.0 renders any whole length from three to thirty seconds at 720p or 1080p. Kling 3.0 runs three to fifteen seconds, reaches native 4K, lets you switch audio off and takes an Avoid field for what must stay out of frame. Pick 4.0 for length and 3.0 for 4K or those controls.
How long can a Kling 4.0 shot be?
Any whole second from three to thirty.
Does Kling 4.0 take an Avoid field?
No. Kling 4.0 has no field for what must stay out of frame, so put that in the prompt. Kling 3.0 does take one.
Can I give it reference images or clips?
Yes. Up to ten reference images and five reference clips of three to thirty seconds each, thirty in all, build a new shot. A shot with a clip attached is quoted on the clip’s seconds as well as its own, before it runs.
Can Kling 4.0 edit a clip I already have?
Yes. Attach one clip of three to thirty seconds, with reference images if you like, and write what to change. The edit keeps the clip’s length and frame.

Try Kling 4.0 on your Cast.

20 VX free on signup, no card required.