None
None
Long Story Video Skill
Turn your idea into 10s–10min video—AI writes scripts, prompts, and generates footage automatically.
Ads Video Skill
Generate professional ads and sales videos—AI auto-generates scripts, prompts, and footage.
3D Science Explainer Video Skill
Convert scientific concepts into stunning 3D explain animations
Feedback
AI Ad Video Example
Loading...
Kling 4.0 AI Video Generator
Describe a scene or upload a photo and watch Kling 4.0 AI Video Generator build polished 4K clips of up to 30 seconds, with voices that match your language.
All Tools
Discover our comprehensive AI-powered animation toolkit
MiniMax H3
MiniMax H3 AI Video Generator
Seedance 2.5
The Future of AI Video Is Here.
Seedance 2.0
The Future of AI Video Is Here.
Veo3.1
Create Stunning Videos with Veo3.1
FLUX 3 Video Generator
Kling 3.0
Next-Gen AI Video Generator
Grok Video Generator
Create Videos from Text or Images with AI
MiniMax H3 video generator
MiniMax H3 AI Video Generator
Why Creators Choose the Kling 4.0 AI Video Generator
Developed by Kuaishou, Kling 4.0 converts typed directions, still pictures and uploaded reference assets into finished footage. Omni Reference processes visuals and voices side by side, keeping sound locked to picture whatever language is spoken.
- Omni Reference InputsStills, footage, voice samples and subject elements all feed in as Omni Reference material, sharing one ceiling of 15 items per project.
- Voices Locked to PictureDialogue lands on the beat with the visuals, while two-channel stereo output gives every character a distinct voice to follow.
- Three to Thirty Seconds Per PassOne generation covers three to thirty seconds; extra runtime is added afterwards as a separate extension step, not inside the same run.
Kling 4.0 AI Video Generator: A Three-Step Workflow
Move from raw reference material to a reviewed, export-ready clip in three short steps.
Core Capabilities of the Kling 4.0 AI Video Generator
Extended runtime, stacked reference inputs and frame-accurate multilingual audio all come together in one workspace.
Clips That Run to 30 Seconds
A single render can reach half a minute, leaving enough space for an opening, a turn in the middle and a payoff.
720p, 1080p and 4K Delivery
Choose 720p, 1080p or 4K and match the frame to its destination — 21:9, 16:9, 1:1, 9:16 or Auto carry you from vertical social cuts through to wide-format product films.
Fifteen Omni Reference Slots
Blend photos, clips, voice samples and subject elements inside one shared budget of 15 — say 10 images, or 5 clips totalling 30 seconds, or 7 subjects.
Voice References in Any Language
Uploaded voice samples shape how each speaker sounds, while picture and two-channel stereo stay aligned no matter the language used.
Ten Keyframes Under Your Control
Pin the moments that matter with up to 10 keyframe stills, guiding how a character looks, the point where the scene shifts and how the shot opens and closes.
Surgical Video Edits
Rework facial expressions, motion, surroundings or overall style by supplying up to 5 clips — one of them the main take — each running 3–30 seconds and no more than 30 seconds in total.
Answers About the Kling 4.0 AI Video Generator
Runtime, output quality, reference limits, editing, credits and API access — answered for the Kling 4.0 AI Video Generator.
Which clip lengths, resolutions and aspect ratios can I choose?
Footage can run anywhere from three to thirty seconds and export at 720p, 1080p or 4K. HDR sits outside the resolution setting, so double-check what your final delivery really needs.
What is the ceiling on Omni Reference assets?
Fifteen items in total, and that pool covers pictures, footage, voice samples and subject elements alike. Category limits all draw from the same fifteen, so they cannot be stacked on top of one another.
Are voice samples counted inside the 15-asset budget?
Yes — they come out of the same pool of fifteen. Speech and picture remain in sync across languages, so it pays to listen to how each line lands once rendering finishes.
What does targeted video editing let me change?
Supply up to five clips, one of which is treated as the main take. Each has to fall between three and thirty seconds and the set cannot exceed thirty in total; then state which expression, motion, 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 degree of control each model gives you. Kling 4.0 stretches to thirty seconds where Kling 3.0 caps at fifteen, and it adds ten keyframes plus fifteen Omni Reference slots.
What credits are required, and can I call an API?
Credits already sitting in your Kling Motion Control balance work here, and the price on the generate button updates as you change settings. Web access does not guarantee 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 balance applies right away — review the price on the button before generating, and keep the prompts that delivered the best results.