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Kling 4.0 AI Video Generator
Kling 4.0 AI Video Generator turns a prompt, a photo or a reference clip into 4K footage up to 30 seconds, with voices matched to your language.
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A Closer Look at the Kling 4.0 AI Video Generator
Developed by Kuaishou, this model converts written briefs, photographs and uploaded reference files into watchable footage. Omni Reference processes sight and sound together, so dialogue stays locked to the picture no matter which language you work in.
- Unified Omni Reference InputsPhotos, video snippets, voice recordings and character elements can be blended together, sharing one cap of 15 items for each project.
- Stereo Sound in Any LanguageDialogue arrives in step with the action on screen, and two-channel output separates each speaker so audiences can tell who is talking.
- Three to Thirty Seconds Per PassOne render covers three to thirty seconds; any extra time is added later as a separate extension run rather than part of the same job.
Using the Kling 4.0 AI Video Generator in Three Steps
From uploaded references to a finished, export-ready file — the Kling 4.0 AI Video Generator gets you there in three straightforward moves.
What the Kling 4.0 AI Video Generator Can Do
Longer runtimes, stacked reference inputs and language-matched sound and picture — all delivered inside the Kling 4.0 AI Video Generator.
Clips That Run to 30 Seconds
One render can reach the half-minute mark, giving you space for an opening, a middle turn and a closing beat.
720p, 1080p or 4K Delivery
Choose 720p, 1080p or 4K and frame for wherever it lands — 21:9, 16:9, 1:1, 9:16 or Auto suits everything from vertical social cuts to widescreen product films.
Fifteen Reference Slots to Share
Blend photos, clips, voice recordings and character elements inside one pool of fifteen — say ten images, five clips totalling 30 seconds, or seven subjects.
Voice Samples in Any Language
A voice recording shapes how each character sounds, while the image and two-channel stereo track stay locked together regardless of language.
Steer the Shot With 10 Keyframes
Set as many as ten keyframe images to fix how a character appears, when the scene turns and how the shot begins and ends.
Precise, Targeted Edits
Adjust expressions, movement, surroundings or the overall style by supplying up to five clips — one acting as the main take — each 3–30 seconds and no more than 30 seconds combined.
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.
Which clip lengths, resolutions and aspect ratios can I choose?
Footage can last anywhere from three to thirty seconds and render at 720p, 1080p or 4K. HDR is set separately from resolution, so check what your final delivery really needs.
What is the ceiling on Omni Reference files?
The shared limit is fifteen items, and it covers images, clips, voice recordings and character elements alike. Each category pulls from that one pool, so the numbers cannot be added together.
Are voice recordings included in the fifteen-item cap?
Yes — they come out of the same pool of fifteen. Because sound and picture stay aligned in every language, it pays to check how each spoken line lands after rendering.
What can targeted editing actually change?
You may upload up to five clips, with one serving as the main take. Each has to sit between three and thirty seconds, and the combined total cannot pass thirty. Then simply state which expression, movement, setting or style should change.
How does Kling 4.0 stack up against Kling 3.0 and Seedance 2.5?
Compare them on runtime, picture quality, accepted inputs and the level of control each gives you. Kling 4.0 runs to thirty seconds while Kling 3.0 tops out at fifteen, and it brings ten keyframes along with fifteen Omni Reference slots.
What credits are required, and is an API available?
Any credits already sitting in your Kling Motion Control balance work here, and the figure on the generate button updates as you change settings. Web access does not guarantee API access, so confirm model IDs, supported inputs and billing with your provider.
Put the Kling 4.0 AI Video Generator to Work
Your existing Kling Motion Control credits apply right away — glance at the price before you generate, and keep the prompts that worked best.