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Kling 4.0 AI Video Generator
Turn a sentence, a still or a reference clip into a cinematic 4K scene — this Kling 4.0 AI Video Generator syncs voices in any language.
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A Closer Look at the Kling 4.0 AI Video Generator
Developed by Kuaishou, Kling 4.0 assembles finished footage out of typed descriptions, static images and uploaded reference material. Omni Reference handles sight and sound in one pass, so dialogue stays locked to the picture whichever language it is spoken in.
- One Workflow for Every ReferencePictures, footage, voice recordings and subject assets can all be blended as Omni Reference inputs, drawing on a single allowance of 15 items per project.
- Language-Ready Lip Sync in StereoSpoken lines arrive on beat with the action, while two-channel stereo separation gives every character a voice the audience can pick out.
- Three to Thirty Seconds per PassOne render covers anything from three to thirty seconds; any extra length is produced afterwards as a standalone extension rather than part of the original generation.
Building a Clip with the Kling 4.0 AI Video Generator
From first reference to a finished, downloadable video, the Kling 4.0 AI Video Generator needs only three moves.
Standout Capabilities of the Kling 4.0 AI Video Generator
Longer runtimes, layered reference inputs and multilingual control over both sound and picture — every one of them built into this Kling 4.0 AI Video Generator.
Runs as Long as 30 Seconds
A single render can reach half a minute, which leaves space for an opening, a middle beat and a closing.
720p, 1080p or 4K Delivery
Pick 720p, 1080p or 4K and frame for the destination — 21:9, 16:9, 1:1, 9:16 or Auto span vertical social posts through to wide-format product films.
Fifteen Omni Reference Slots
Stills, footage, voice samples and subject elements share one budget of 15 — for instance 10 pictures, or 5 clips adding up to 30 seconds, or 7 subjects.
Voices in Any Language
Voice samples shape how each speaker sounds, while picture and two-channel stereo remain in step no matter the language.
Steer Up to 10 Keyframes
Pin the beats that matter with as many as 10 keyframe stills, guiding how a character looks, when the scene shifts and how the shot opens and closes.
Surgical Video Editing
Rework facial expressions, motion, settings or overall look by feeding in as many as 5 clips, one of them the main take, each running 3–30 seconds and no more than 30 seconds in total.
Questions About the Kling 4.0 AI Video Generator
Answers on clip length, output quality, reference limits, editing, credits and API access for the Kling 4.0 AI Video Generator.
How long can clips be, and at what quality?
Renders range from three to thirty seconds, delivered at 720p, 1080p or 4K. HDR sits outside the resolution setting, so double-check what your final delivery actually requires.
Is there a cap on Omni Reference assets?
Fifteen items is the shared ceiling, covering pictures, footage, voice samples and subject elements alike. The per-category numbers all draw from that same pool, so they cannot be stacked.
Do voice samples eat into the 15-asset allowance?
They do, and they come out of the same pool of fifteen. Audio and picture hold together across languages, so it pays to check how each line lands once the clip is rendered.
What does targeted video editing actually do?
You can supply as many as five clips, one of which acts as the main take. Each must fall between three and thirty seconds, and together they cannot exceed thirty; simply name the expression, motion, setting or look you want changed.
Where does Kling 4.0 sit next to Kling 3.0 and Seedance 2.5?
Compare runtime, output quality, accepted inputs and the degree of control each one offers. Kling 4.0 reaches thirty seconds where Kling 3.0 stops at fifteen, and adds ten keyframes plus fifteen Omni Reference slots.
What credits are required, and can I use an API?
Credits you already hold on Kling Motion Control are usable here, and the price on the generate button changes as you adjust settings. Web access does not imply API availability — check model IDs, supported inputs and billing with your provider.
Put the Kling 4.0 AI Video Generator to Work
Any Kling Motion Control credits already in your account come with you — review the price shown before you hit generate, and keep the prompts that delivered.