Kling 4.0 Flash Video Generator
Kling 4.0 Flash Video Generator turns text and images into up to 30-second 4K video with 15 Omni Reference assets, 10 keyframes and multilingual stereo audio.
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What Makes Kling 4.0 Flash Video Generator Different
Type a prompt or drop in a photo and Kling 4.0 works from 3 to 30 seconds, keeping voices and picture in step across languages.
- Kling 4.0 Model Overview from KuaishouA video generation model built by Kuaishou that starts from written prompts, still images and reference material, arriving after Kling 3.0 and Kling 3.0 Turbo.
- Single-Pass 3–30 Second Generation in 720p, 1080p, or 4KOne pass returns anything from three seconds to half a minute, rendered at 720p, 1080p or 4K and steered by as many as 10 keyframes plus 15 Omni Reference inputs.
- Omni Reference Workflow for Visual and Voice InputsOmni Reference keeps picture material and spoken material inside one working flow, so multilingual dialogue lines up with what happens on screen.
Kling 4.0 Flash Video Generator in Three Steps
Load your material, brief the shot, then check the draft before you continue the scene.
What the Kling 4.0 Flash Video Generator Delivers
Thirty-second scenes, one shared pool of reference inputs, and dialogue that stays in step with the picture.
Generate Up to 30 Seconds
A single run can carry a full beat: the setup, the main action and the payoff. When the story needs longer, continue it through the extension flow instead of compressing the idea.
Up to 4K Video Output
Pick 720p, 1080p or 4K and frame for the destination — 21:9, 16:9, 1:1, 9:16 or Auto, from a vertical social cut to a wide product presentation.
Up to 15 Reference Assets
Pictures, footage, voices and subject elements draw on one shared ceiling of 15. Within it you can use as many as 10 stills, 5 clips adding up to 30 seconds, or 7 subject elements.
Multilingual Audio and Voice References
Give each speaker a voice sample and the output arrives with two-channel stereo, the speech matched to the moving image across languages.
Control Up to 10 Keyframes
Anchor the moments that matter — a change of expression, a turn in the scene, the first and last frame — with up to 10 stills across a 3–30-second run.
Targeted Video Editing
Feed in as many as 5 clips, one of them the primary, to reshape a face, a gesture, a backdrop or a look. Every clip runs 3–30 seconds and the total stays under 30.
Questions About Kling 4.0 Flash Video Generator
What the model covers, how the input ceilings stack up, and what to confirm before you submit a job.
How long can one Kling 4.0 generation run?
A single pass covers three seconds up to thirty. Anything beyond that belongs to the extension flow, so look at the continuation options your service offers rather than counting an extended piece as one run.
How do the reference limits work?
Fifteen inputs is the shared ceiling. Stills cap at 10, footage at 5 clips adding up to 30 seconds, subject elements at 7 — and those category numbers come out of the same 15 rather than stacking on top of it.
Can voice references carry multilingual dialogue?
They can. A voice sample steers how a subject sounds, occupies one of the fifteen slots, and pairs with cross-language lip and audio matching. Play the result back to check where each line lands.
Does Kling 4.0 edit footage I already have?
Yes. Up to 5 clips go in, one designated as the primary, and each has to sit between three and thirty seconds. Added together they must stay within the thirty-second total.
How many keyframe images can I place?
Ten at most. Use them to mark the beats you care about — a pose, a shift in the scene, a change of expression — and keep the person and the lighting reading the same from frame to frame.
Where do I see the credit cost?
The generator here spends the Kling Motion Control credits already in your account. The figure appears on the Generate button and moves as you change settings, so read it before you commit.
Put the Kling 4.0 Flash Video Generator to Work
Open the panel above, add your references, and confirm the credit cost and usage terms shown before you export a finished clip.