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Kling 4.0 AI Video Generator
Kling 4.0 AI Video Generator crafts up to 30-second 4K footage from text, images, and Omni Reference files — includes multilingual synced audio.
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An Introduction to Kling 4.0 AI Video Generator
Developed by Kuaishou, Kling 4.0 transforms text prompts, photos, and uploaded references into polished video output. Omni Reference processes visual and vocal inputs simultaneously, keeping audio and imagery synchronized across languages.
- Unified Omni Reference SystemBlend photos, video clips, audio recordings, and character elements into Omni Reference inputs — up to 15 assets shared across a single project.
- Cross-Language Audio Alignment with StereoDialogue aligns precisely with on-screen action, while dual-channel stereo gives each character's voice its own clear space in the mix.
- Flexible 3–30 Second Clips with Modular ExtensionEach render produces three to thirty seconds of footage. Extending length afterward is a standalone task rather than part of the initial generation.
Step-by-Step Guide to Using Kling 4.0 AI Video Generator
Follow three simple steps to transform reference assets into a reviewable, downloadable clip powered by Kling 4.0 AI Video Generator.
Key Strengths of Kling 4.0 AI Video Generator
Longer clip durations, multi-layer reference support, and precise cross-language audio-visual alignment — all delivered by Kling 4.0 AI Video Generator.
Up to 30-Second Clip Generation
One generation cycle can deliver footage up to half a minute long, providing space for an opening sequence, core action, and resolution.
Three Resolution Options: 720p, 1080p, and 4K
Select from 720p, 1080p, or 4K, with aspect ratios including 21:9, 16:9, 1:1, 9:16, or adaptive — accommodating everything from portrait social content to widescreen brand videos.
15-Asset Omni Reference Capacity
Combine images, video segments, voice recordings, and subject references within a shared 15-item pool — for instance 10 stills, or 5 clips totaling 30 seconds, or 7 character profiles.
Multilingual Voice Sample Support
Upload voice recordings to shape each character's vocal delivery, while visuals and dual-channel stereo remain perfectly aligned across all supported languages.
Up to 10 Keyframe Anchors
Pin as many as 10 keyframe images to define character appearance, scene transition timing, and how each shot begins and ends.
Precision Video Adjustments
Refine expressions, movement, environments, or visual style by importing up to 5 clips — designating one as the primary reference. Each must be 3–30 seconds, with the combined total not exceeding 30 seconds.
Frequently Asked Questions for Kling 4.0 AI Video Generator
Get answers on clip length, output quality, reference limits, editing controls, credit usage, and API access for Kling 4.0 AI Video Generator.
Which clip lengths, resolutions, and aspect ratios does this tool support?
Videos range from three to thirty seconds, with output at 720p, 1080p, or 4K. HDR settings are managed separately from resolution, so verify your final delivery requirements beforehand.
What is the limit on Omni Reference files I can include?
Fifteen is the combined maximum across all types — images, video clips, audio recordings, and character references all draw from the same pool, meaning individual category limits cannot be stacked.
Are voice recordings counted within the 15-reference cap?
Yes — voice recordings use the same 15-item pool. Since audio and visuals stay synchronized across languages, review how each dialogue segment syncs after rendering.
What is involved in targeted video adjustments?
Upload up to five clips with one serving as the primary reference. Each must be three to thirty seconds, and their combined duration cannot surpass thirty. Specify which expression, movement, environment, or visual style you want adjusted.
How does Kling 4.0 differ from Kling 3.0 and Seedance 2.5?
Compare them across duration range, output quality, supported input types, and available controls. Kling 4.0 reaches thirty seconds whereas Kling 3.0 stops at fifteen, and it adds ten keyframe anchors plus fifteen Omni Reference slots.
Which credits apply here, and is an API available?
Your existing Kling Motion Control credits work for these generations, and the cost shown on the generate button updates as you modify settings. API access cannot be assumed from web usage — confirm model IDs, accepted inputs, and billing terms with your provider.
Try the Kling 4.0 AI Video Generator Today
Your existing Kling Motion Control credits apply directly — review the displayed price before generating, and keep prompts that produced your best results.