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Kling 4.0 AI Video Generator
Draft a prompt or drop in a reference and the Kling 4.0 AI Video Generator returns 4K footage as long as 30 seconds, voice and picture matched.
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What Sets Kling 4.0 AI Video Generation Apart
Developed by Kuaishou, Kling 4.0 converts written prompts, still images and user-supplied reference material into finished footage. Omni Reference handles visual and vocal inputs side by side, keeping sound locked to picture whatever the language.
- One Pool for Every Reference TypeStills, video clips, voice recordings and character elements can be combined freely as Omni Reference inputs, all sharing a single cap of 15 items per project.
- Speech Matched to Picture, in StereoDialogue lands in step with the on-screen action, while two-channel stereo output lets every character carry a voice of their own.
- Three to Thirty Seconds per PassOne generation covers anything from three to thirty seconds; lengthening the story afterwards runs as a separate extension step rather than continuing the original render.
Putting the Kling 4.0 AI Video Generator to Work
Three moves carry you from raw reference material to a reviewed, exportable clip.
Capabilities Built Into Kling 4.0 AI Video Generation
Longer runtime, layered reference inputs and multilingual sound-and-picture control, all delivered through the Kling 4.0 AI Video Generator.
Clips That Run to 30 Seconds
A single render can last half a minute — enough room for an opening beat, a middle turn and a closing shot.
720p, 1080p or 4K Delivery
Choose 720p, 1080p or 4K and pick a frame to suit the channel — 21:9, 16:9, 1:1, 9:16 or Auto carry everything from vertical social cuts to widescreen product films.
Fifteen Omni Reference Slots
Stills, footage, voice samples and character elements all draw on one budget of 15 — say 10 images, or 5 clips totalling 30 seconds, or 7 subjects.
Voice Samples in Any Language
Uploaded voice samples shape how each speaker sounds, while picture and two-channel stereo hold together whatever language is being spoken.
Ten Keyframes of Direction
Set as many as 10 keyframe stills to mark the beats that matter, steering a character's look, the moment a scene turns and how a shot opens and closes.
Surgical Edits to Finished Footage
Rework expressions, motion, surroundings or overall style by supplying up to 5 clips, one acting as the main take, each between 3 and 30 seconds with a combined ceiling of 30.
Frequently Asked Questions About Kling 4.0 AI Video Generation
Answers on clip length, output resolution, reference limits, editing, credit use and API access for Kling 4.0 AI video creation.
What lengths, resolutions and aspect ratios can I choose?
Renders can run from three up to thirty seconds, and you can output at 720p, 1080p or 4K. HDR is configured separately from resolution, so check what your final delivery spec actually calls for.
How many Omni Reference assets are allowed?
Fifteen items is the shared ceiling, covering images, video clips, voice samples and character elements alike. Per-category counts come out of that same pool, so they cannot be stacked on top of one another.
Are voice references part of the 15-item cap?
Yes — they are drawn from the same pool of fifteen. Audio and picture remain aligned whatever the language, so it is worth reviewing how each spoken line lands once rendering finishes.
What does targeted video editing actually do?
You can hand over as many as five clips, with one serving as the main take. Every clip must sit between three and thirty seconds and together they cannot pass thirty; state which expression, movement, setting or look should change.
How does Kling 4.0 stack up against Kling 3.0 and Seedance 2.5?
Compare runtime, output quality, accepted inputs and the level 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 is an API available?
Credits already held on Kling Motion Control work here, and the figure shown on the generate button updates as you change settings. Web access does not imply API access — confirm model IDs, supported inputs and billing with your provider.
Put Kling 4.0 AI Video Generation to Work Today
Your existing Kling Motion Control credits apply right here — review the price shown before you generate, and keep hold of the prompts that delivered best.