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Kling 4.0 AI Video Generator
Produce 4K clips up to 30 seconds from prompts, stills, and Omni Reference inputs using Kling 4.0 AI Video Generator, with synchronized multilingual audio.
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Understanding the Kling 4.0 AI Video Generator
Developed by Kuaishou, this AI video tool transforms written instructions, photos, and reference files into polished clips. Visual and vocal elements are merged via Omni Reference, ensuring audio and visuals stay aligned across multiple languages.
- Omni Reference IntegrationYou can combine photos, video clips, voice snippets, and character elements as Omni Reference inputs, limited to fifteen items per project.
- Cross-Language Sync and Stereo AudioDialogue matches the visuals precisely, while stereo two-channel sound gives each character a unique voice for clarity.
- From 3 to 30 Seconds, Extensions SeparateOne generation can produce 3-30 seconds; any extra duration must be added as a separate extension, not part of the original run.
Step-by-Step Guide to Using Kling 4.0 AI Video Generator
Follow three simple steps to move from reference assets to a reviewable, downloadable video using the Kling 4.0 AI Video Generator.
Key Features of the Kling 4.0 AI Video Generator
Extended duration, multi-layer reference inputs, and synchronized multilingual audio-visual control — all powered by the Kling 4.0 AI Video Generator.
Produce Up to 30-Second Clips
One generation can reach thirty seconds, providing space for intro, middle, and conclusion.
720p, 1080p, and 4K Export
Choose 720p, 1080p, or 4K and set aspect ratio (21:9, 16:9, 1:1, 9:16, or Auto) to suit vertical social posts or wide product videos.
Supports Up to 15 Omni Reference Items
Combine stills, video, voice samples, and character elements within a fifteen-item limit — for instance, ten images, five clips totaling thirty seconds, or seven characters.
Voice References for Multiple Languages
Voice samples influence each speaker's tone, while visuals and stereo audio remain synchronized in any language.
Manage Up to 10 Keyframes
Define up to ten keyframe images to control character appearance, scene transitions, and shot opening/closing.
Focused Video Editing
Adjust expressions, motion, setting, or style by supplying up to five clips (one primary), each three-thirty seconds, with a total limit of thirty seconds.
Frequently Asked Questions about Kling 4.0 AI Video Generator
Answers to common queries on length, resolution, references, editing, credits, and API usage for the Kling 4.0 AI Video Generator.
Which durations, resolutions, and aspect ratios are available?
Clips can be three to thirty seconds long, with 720p, 1080p, or 4K output. HDR is set separately from resolution — verify the specs your final delivery needs.
What is the maximum number of Omni Reference assets I can add?
You may use up to fifteen items total, encompassing images, video, voice samples, and subject elements. Category limits share this pool and cannot be added together.
Are voice references included in the fifteen-asset cap?
Yes, they share the fifteen-item limit. Audio and visuals remain synced across languages, so review each line after rendering.
How does the focused video editing feature function?
Provide up to five clips, designating one as primary. Each clip should be three-thirty seconds, and the total must stay within thirty seconds. Specify which expression, motion, setting, or style to modify.
How does Kling 4.0 stack up against Kling 3.0 and Seedance 2.5?
Compare length, output quality, supported inputs, and control options. Kling 4.0 extends to thirty seconds versus Kling 3.0's fifteen, and includes ten keyframes plus fifteen Omni Reference slots.
What credits are required, and does an API exist?
Existing Kling Motion Control credits work here, and the displayed price updates with settings. API access isn't guaranteed by web use — verify model IDs, supported inputs, and billing with your provider.
Discover the Kling 4.0 AI Video Generator
Your Kling Motion Control credits apply seamlessly — review the displayed cost before clicking generate, and store the prompts that produced great results.