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Kling 4.0 AI Video Generator
Use the Kling 4.0 AI Video Generator to craft 3–30s 4K clips from text, images or references, with language-matched voice and 10 keyframes.
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What the Kling 4.0 AI Video Generator Offers
Created by Kuaishou, this system converts typed descriptions, photographs and supplied reference assets into polished clips. Omni Reference blends imagery with voice input so sound and visuals stay aligned in every language.
- Unified Omni Reference InputCombine stills, video snippets, voice clips and character traits as Omni Reference media — up to 15 total within a single project.
- Language-accurate Audio SyncDialogue lands precisely against the motion on screen, while two-channel stereo gives every speaker a voice the viewer can track.
- Three to Thirty Seconds Per RenderOne generation produces three through thirty seconds of footage; extra time is appended as a distinct extension task rather than folded into the same run.
Using the Kling 4.0 AI Video Generator in Three Steps
Follow this three-step path from raw reference assets to a finished clip you can export from the Kling 4.0 AI Video Generator.
Standout Features of the Kling 4.0 AI Video Generator
Longer clips, stacked reference assets and precise control over picture and sound across languages — all from a single workspace.
Renders Reaching Thirty Seconds
One uninterrupted generation spans up to 30 seconds, enough to frame an opening, a central moment and a wrap-up.
Choice of 720p, 1080p or 4K
Select the resolution that matches your platform and crop for 21:9, 16:9, 1:1, 9:16 or Auto — from vertical social clips to widescreen brand films.
Fifteen Omni Reference Slots
Blend photos, footage, voice samples and subject traits within one allowance of 15 — say 10 stills, or 5 scenes totalling 30 seconds, or 7 characters.
Voice Samples in Any Language
Uploaded voice clips shape each speaker's tone, while imagery and two-channel stereo remain locked together from one language to the next.
Direction Over Ten Keyframes
Pin up to 10 still frames at the moments that count — guiding appearance, scene changes and how each shot begins and ends.
Precision Re-Editing of Clips
Adjust expressions, movement, location or style by supplying up to 5 clips — one acting as the primary take — each lasting 3–30 seconds with a combined cap of thirty.
Answers About the Kling 4.0 AI Video Generator
Common questions on clip length, output quality, reference limits, editing and billing for the Kling 4.0 AI Video Generator.
Which clip lengths, resolutions and shapes can I export?
Footage spans three to thirty seconds and exports at 720p, 1080p or 4K. HDR is configured independently of resolution, so check what your final deliverable actually requires.
What is the cap on Omni Reference materials?
Fifteen is the shared maximum across stills, footage, voice clips and subject traits. Category counts draw down that same pool, so they cannot be stacked.
Are voice samples included in that fifteen-item allowance?
Yes — they consume the same fifteen-item budget. Since audio and picture remain synchronized across languages, review each line once the clip has rendered.
What does precision clip editing involve?
Submit as many as five clips with one serving as the primary take. Every clip must run three to thirty seconds and the set must not pass thirty total; specify the expression, motion, setting or style you want altered.
What separates Kling 4.0 from Kling 3.0 and Seedance 2.5?
Compare length ceiling, output fidelity, accepted inputs and available controls. Kling 4.0 reaches thirty seconds while Kling 3.0 stops at fifteen, plus it adds ten keyframes and fifteen Omni Reference slots.
What credits apply here, and can I use an API?
Balance from Kling Motion Control works for these renders, with the generate button updating its price as you change options. Web access does not guarantee API support — confirm model IDs, accepted inputs and billing with your provider.
Put the Kling 4.0 AI Video Generator to Work Today
Your existing Kling Motion Control balance applies automatically — note the price displayed before rendering, and keep the prompts that produced your best results.