Action 15s
The ridge
A swordswoman on a misty mountain path. The camera closes from a wide shot to her hand without losing her face or her costume.
New · Kling AI · from 23 October
Kling 4.0 holds the shot for thirty seconds.
Kling's newest video model renders one continuous take of up to 30 seconds at 1080p, with sound. Steer it with a prompt, with first, middle and last frames, or with up to ten reference images.
$0.157per second · 720p
$0.2355per second · 1080p
What it does
Longer takes, more control.
One continuous shot from 3 to 30 seconds, with sound, at 720p or 1080p. Three ways in on the same key: describe it, pin it to key frames, or hand it the faces, products and places to keep.
3–30 s
One take. You choose the length, and the length is what you pay for.
1080p
The default, with 720p for drafts. Sound is generated with the picture.
10 images
First, middle and last frames, or reference images, in a single job.
21:9
Ultrawide, beside 16:9, 9:16 and 1:1, from the same model.
Text to video
Write the whole scene.
Camera, action, dialogue and sound in one prompt. Choose 21:9, 16:9, 9:16 or 1:1.
kling/kling-4.0-t2v
Key frames
Set the beats, let it move.
A first, a middle and a last frame, up to ten images, and the model travels between them. The frames set the shape.
kling/kling-4.0-i2v
Omni
Everything in one model.
Text, key frames and reference images together: up to ten images of the characters, products and places to keep consistent.
kling/kling-4.0-omni
Demos
Examples. Turn the sound on.
Kling 4.0 footage with its own sound. Under each clip, what to watch for.
Cinematic scenes
Large-scale motion and long camera moves that hold together from the wide shot to the close-up.
Scale 16s
The storm
A grand piano on the bow of a ship in heavy sea, from the air down to the player. Water, spray and wind stay physical through the move.
Fantasy 15s
The spell
Effects-heavy fantasy: light, smoke and fabric move together while the character stays the same person.
Key frames 20s
The night light
Several key frames along one timeline: a creature drawn in light travels through the room from one pinned moment to the next.
Ultrawide 21:9 30s
The jump
Thirty seconds at 21:9: a jump from an open cargo door and a wingsuit flight through a desert canyon, in the cinema shape a trailer needs.
Prompt understanding
A long brief followed closely, or five words turned into a whole performance.
Long prompt · dialogue 7s
The reunion
A detailed brief: two friends meet on a British street at dusk, handheld camera, film look, a line of English dialogue. The street, the timing and the hug land where the prompt puts them.
Short prompt · speech 15s
The rant
“An old man ranting about AI.”
Five words. The room, the gestures, the voice and the lip-sync come from the model.
Where it fits
When one shot has to carry the scene.
Thirty seconds is long enough for a story beat, a product moment or a full social spot without cutting.
Ads
Products that stay themselves.
Reference images keep shape, materials and brand details steady across angles and light.
Story
Trailers and story beats.
Up to 30 seconds in one take, with sound and dialogue, at 21:9 if it is going on a big screen.
Previs
Storyboards that move.
Pin the first, middle and last frames and let the model fill the motion between them.
Social
Every format from one model.
9:16, 1:1, 16:9 and 21:9 from the same prompt and the same key.
Price
Billed per second you ask for.
You set the length when you submit, so the price is known before the job starts. Aspect ratio and the way in (text, key frames or references) do not change it.
| Output | 720p | 1080p |
|---|---|---|
| Per second | $0.157 | $0.2355 |
| 10 seconds | $1.57 | $2.36 |
| 30 seconds | $4.71 | $7.07 |
Kling's own list price. Kling still marks the 4.0 rates as a preview. If Kling changes them, the price here follows.
Direct relationships with model providers. Our direct relationships with model providers help us secure better commercial terms for our clients, early access to new models, and access to models that are not publicly available.
On the invoice you already get. Same key, same monthly bill, split by project or team like the rest of the catalogue.
Inputs and limits
What it takes, and where it stops.
What you send
PromptThe scene, the camera, the action and the sound, in one text.
Duration3 to 30 seconds, required. It is the number you are charged for.
Resolution720p or 1080p. 1080p is the default.
Aspect ratio21:9, 16:9, 9:16 or 1:1. Omni can also follow the prompt or the frames; with key frames, the frames set it.
Key framesFirst, middle and last frames: JPG or PNG, up to 30 MB, at least 300 px.
ReferencesOn Omni, reference images, each named in the prompt. Up to ten images per job in all.
Worth knowing
Not 4K on Kling 4.0 yet.
Reference videos, video editing, and element and voice references are not on the gateway yet.
The length is required, so the price is fixed before the job starts.
Output comes without a watermark.
Get started
Run it on your Sociaro key.
Kling 4.0 is in the catalogue as kling/kling-4.0-t2v, kling/kling-4.0-i2v and kling/kling-4.0-omni. With a key already, it is a new model name in your call. Without one, tell us what you want to run and we come back with a key, usually the same day.
Emailhello@sociaro.com
Model cardsTextKey framesOmni
LinkedInlinkedin.com/company/sociaro
Model byKling AI