Kling 4.0
Kling (4.0)
Kling's newest model, animating a first frame at 720p. Kling 4.0 — image-to-video from a first frame; a single upstream route.
Using Kling 4.0 in uooki
uooki has no model picker. You name the model in the conversation and the agent routes to it — “make the clip with Kling 4.0” is the whole interface. Common spellings and older ids resolve to the same model, so you do not have to match our internal naming.
Leave the model out and the agent picks one for you based on what you asked for. Naming it is for when you have a reason to — this page is about those reasons.
What it is good at
- Animating one strong still into a short clip
- Scenes that need stable motion and a sense of camera
- Trying the newest Kling generation next to V3
Where it is not the right pick
It takes one first frame and no reference images. It runs on a single upstream route (fal) with no failover, and the upstream price may change. uooki runs it at 720p.
When to reach for something else
- Kling V3
You want a route with failover and a lower price.
- Kling O3
The same character has to hold across shots, with several reference images.
- Seedance 2.5
You have a pile of reference material and want sound.
Specifications
| Type | Video generation |
|---|---|
| Billing | Billed per second of video generated. |
| Plan | Available on every plan |
| Audio | No — silent output |
| Reference images | Supported |
| Credits | See pricing |
Specifications are read from uooki’s model registry, not written by hand — if the registry changes, this table changes with it.
Model id
What uooki calls upstream when you pick Kling 4.0. You never need this to use it — it is here so the vendor name and the actual model are unambiguous.
Try it in a sentence.
Describe what you want and name Kling 4.0 in the same breath. The Free plan is $0 and starts with 100 one-time credits.