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Kling 4.0 AI Video Generator
Turn a prompt, a photo or a reference clip into lifelike 4K footage with Kling 4.0 AI Video Generator. Synced multilingual voices, no editing skills needed.
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Kling 4.0 AI Video Generator at a Glance
Kuaishou's Kling 4.0 model converts scripts, photographs and uploaded reference clips into watchable footage. Omni Reference processes sight and sound side by side, so dialogue stays locked to the picture whichever language you record in.
- One Workspace for Every InputPhotos, video snippets, voice recordings and character sheets all go in as Omni Reference material — up to 15 assets shared across a single project.
- Voices That Match the PictureEvery spoken line lands on the beat, and two-channel stereo keeps each character's voice easy to tell apart.
- Clips From 3 to 30 SecondsOne generation covers three to thirty seconds. Need more runtime? Lengthen the story as a separate extension pass rather than a single long run.
Building a Clip With the Kling 4.0 AI Video Generator
Three simple stages — prepare your inputs, set the scene, then review and extend — take you from raw reference material to a shareable clip.
Feature Highlights: Kling 4.0 AI Video Generator
Longer takes, stacked reference inputs and voice control that works in any language — all delivered through one browser-based Kling 4.0 AI Video Generator.
Half-Minute Single Takes
One render can stretch to thirty seconds, which leaves space for an opening, a middle turn and a closing shot.
720p, 1080p or 4K Delivery
Choose the resolution that suits your channel and frame it for 21:9, 16:9, 1:1, 9:16 or Auto — from vertical social posts through to widescreen brand films.
15 Reference Slots to Share
Photos, clips, voice samples and character sheets all draw on one pool of fifteen — say 10 images, or 5 clips totalling 30 seconds, or 7 subjects.
Voice Samples Across Languages
A voice recording sets how each speaker sounds, while audio, picture and two-channel stereo stay aligned whatever language is used.
Steer the Shot With 10 Keyframes
Place as many as ten keyframe images to pin down a character's look, the moment a scene shifts and how the shot opens and closes.
Precision Clip Editing
Swap facial expressions, motion, setting or overall style by uploading up to five clips — one acting as the main take — each 3–30 seconds and no more than 30 seconds combined.
Frequently Asked Questions About 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?
Anything from three to thirty seconds, exported at 720p, 1080p or 4K. HDR is configured separately from resolution, so confirm what your final delivery actually requires.
What is the limit on reference files?
Fifteen assets in total, covering photos, footage, voice samples and character elements. The individual category caps come out of that same pool, so they cannot be stacked together.
Are voice samples part of that same 15-asset budget?
Yes — they share the same pool of fifteen. Audio and picture stay synchronized across languages, so it is worth checking how each line lands once the clip is rendered.
What can I change with targeted editing?
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; then say which expression, motion, setting or look you want changed.
Is Kling 4.0 worth upgrading to from Kling 3.0 or Seedance 2.5?
Line up runtime, output quality, what each model accepts as input and how much control it offers. Kling 4.0 reaches thirty seconds where Kling 3.0 stops at fifteen, and adds ten keyframes plus fifteen Omni Reference slots.
What does it cost, and can I call it through an API?
The Kling Motion Control credits already in your account are usable here, and the price on the generate button updates as you adjust settings. Web access does not imply API availability — 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 carry straight over with no extra setup. Check the price shown before you hit generate, and keep the prompts that delivered.