Kling 4.0
Generate Up to 30 Seconds
Kling 4.0 generates videos up to 30 seconds long in a single generation. Give the opening, main action, and ending room to unfold, then extend the video when your story needs more time.
Kling 4.0 AI Video Generator: Make Cinematic Video from Text and Images
Generate up to 30-second videos in 4K, with up to 15 reference assets, 10 keyframe images, multilingual audio-visual synchronization and stereo sound.
Resolution
Aspect ratio
5s
3s30s
Hot air balloon over a misty valley
AI-generated illustration · 720p · 16:9Hot air balloon over a misty valley, cinematic composition, gentle camera movement, natural light, detailed textures.
What is Kling 4.0?
Kling 4.0 is an AI video model from Kuaishou that turns text, images and reference materials into video: 3–30 seconds per generation, up to 4K, with Omni Reference for visual and voice inputs and multilingual audio-visual synchronization.
It follows earlier Kling models, including Kling 3.0 and Kling 3.0 Turbo.
Generate 3–30 seconds in one pass with 720p, 1080p or 4K output. Use up to 10 keyframes to guide the scene, and combine up to 15 Omni Reference assets across images, videos, voices and subject elements.
Last updated: October 2, 2026. For the model provider’s own documentation, see the official Kling AI site.
What Can Kling 4.0 Do?
Kling 4.0 generates 3–30 second clips at up to 4K, with up to 15 Omni Reference assets, up to 10 keyframe images and multilingual synchronized audio in one workflow.
Up to 4K Video
Choose 720p, 1080p or 4K video output. Compose for your final delivery with 21:9, 16:9, 1:1, 9:16 or Auto aspect ratios, from social clips to widescreen product presentations.
Up to 15 Reference Assets
Combine up to 15 reference assets in total across images, videos, voices and subject elements. Use up to 10 images, 5 videos totaling 30 seconds, or 7 subject elements within that shared limit.
Multilingual Audio and Voice References
Create multilingual dialogue with synchronized picture and two-channel stereo audio. Combine voice references with visual materials to guide each character’s performance.
Control Up to 10 Keyframes
Use up to 10 keyframe images to define important moments in a 3–30-second video. Guide character states, scene changes and the opening and closing composition.
Targeted Video Editing
Refine expressions, movement, backgrounds and style using up to 5 input video clips, including one primary video. Each clip is 3–30 seconds, with a combined limit of 30 seconds.
What Can You Control in Kling 4.0?
Kling 4.0 creative controls cover the subject, camera movement, lighting, voice and keyframes, so one brief can direct a whole scene.
Define the Subject
Choose references that show the appearance you want. Describe what the subject does, rather than repeating every detail already visible in the reference.
Describe the Camera Move
Give the shot one clear camera direction, such as a slow push-in or a side tracking move. Treat this as prompt direction and review how the output follows it.
Set the Light and Location
Name a concrete setting and a light source. Keep these directions consistent when you plan another shot or extend the same scene.
Guide the Voice
Use voice references with multilingual audio-visual synchronization. Write concise dialogue and review which voice delivers each line in the result.
Control Up to 10 Keyframes
Use up to 10 keyframe images to define the opening, main action and ending. Keep character details and lighting consistent between the frames.
Edit an Existing Video
Use a primary video and supporting references to change expressions, movement, backgrounds or style. Keep the combined input-video duration within 30 seconds.
What You Can Make with the Kling 4.0 AI Video Generator
Kling 4.0 covers six common production formats: product ads, talking-head clips, short film scenes, social cuts, explainer videos and music-led montages.
Adapt your references and shot direction to each project, from a 5-second product reveal to a 30-second scene.
Product ads
plan a product reveal up to 30 seconds and use reference elements to guide its appearance
Talking-head clips
prepare a character scene with voice references and multilingual synchronized dialogue
Short film scenes
plan an opening, action and ending across up to 30 seconds, guided by up to 10 keyframes
Social cuts
compose a short clip for your social placement and add exact captions in your editor
Explainer video
explain a concept across a 3–30-second sequence with clear visual milestones and narration
Music-led montage
gather visual references and assemble the final cuts to your chosen music in an editor
Start with the shot that carries your main idea. Add references for the details that matter, then assemble captions, branding, and final cuts in your editor.
Kling 4.0 Prompt Examples
Six Kling 4.0 prompt examples covering subject, camera movement and lighting. Copy one and adapt it to your own scene.
Tailor at the Workbench
An elderly tailor sewing a wool jacket at a wooden workbench, close-up on the fabric and tools, slow camera push-in, soft window light from the left.
Keep the action simple and the framing close to focus attention on the craft.
Watchmaker and Mechanical Details
A watchmaker examining an open mechanical watch on a workbench, macro view of the gears and fine tools, slow sideways camera move, soft task-lamp light.
Name the detail you want in focus and use one camera move to keep the shot readable.
Snow Leopard on a Rocky Slope
A snow leopard walking carefully along a rocky mountain slope, wide view with distant peaks, slow tracking shot from the side, pale dawn light.
Combine a clear direction of movement with a wide frame to show the scale of the landscape.
Autumn Forest in Golden Light
An autumn forest with golden leaves moving gently in the breeze, slow forward camera move between the trees, warm backlight filtering through the canopy.
Describe the movement of the leaves separately from the camera movement.
Sunlit Architectural Staircase
A curved wooden staircase inside a quiet building, low-angle view looking upward, slow camera tilt following the handrail, patterned afternoon sunlight on the walls.
Give the camera a visible line to follow, such as the handrail or the edge of the stairs.
Florist Wrapping a Bouquet
A florist folding brown paper around a bouquet of pink and cream flowers, medium close-up at a shop counter, fixed camera, soft natural light from a nearby window.
A fixed camera leaves attention on the wrapping action and makes changes easier to review.
Who is Kling 4.0 Built For?
Kling 4.0 suits four main groups: short-form creators, ad and marketing teams, studios and animation teams, and developers.
Short-form creators
Build short stories, character clips, and social edits around one clear action. Draft the main shot first, then decide whether the story needs a continuation or a cut.
Ad and marketing teams
Turn product references and a campaign brief into a shot plan. Compare framing and movement options, then add exact logos, prices, and campaign text in your editor.
Studios and animation teams
Explore scene blocking, reference combinations, and longer continuations before a final production pass. Review character appearance and continuity at each extension boundary.
Developers
Define test cases for inputs, output quality, and processing time before building an integration. Confirm API access and supported modes with your provider; web access alone does not establish API availability.
Who should skip it. If you only need a short clip, compare the current tools on your own brief. Longer duration and reference controls are useful only when your project needs them; check the actual credit cost before choosing.
Kling 4.0 vs Kling 3.0 and Seedance 2.5
Kling 4.0 generates up to 30 seconds per pass at up to 4K, against 15 seconds on Kling 3.0 and 30 seconds on Seedance 2.5. Compare duration, resolution, reference inputs and creative controls.
| Feature | Kling 4.0 | Kling 3.0 / Omni | Seedance 2.5 |
|---|---|---|---|
| Max clip, one pass | 30s | 15s | 30s |
| Resolution | 720p / 1080p / 4K | native 1080p + 4K | native 1080p |
| Reference capacity | Up to 15 reference assets in total | Depends on the mode; check the selected model | Up to 50 files (30 images, 10 videos, 10 audio) |
| Reference input types | Images, videos, voice references and subject elements | Character video reference; other inputs depend on the mode | Images, video, and audio |
| Native audio + lip-sync | multilingual audio-visual synchronization | yes | yes |
| Multi-keyframe input | Up to 10 images | not compared here | not compared here |
| Video editing inputs | Up to 5 clips; 30s combined | not compared here | not compared here |
When to use Kling 4.0.
Consider Kling 4.0 when your brief needs a longer continuous scene, multiple references, or multilingual dialogue. Choose the generation or extension workflow that fits the shot rather than starting with the longest duration.
How to compare the models.
Use the same brief and reference materials to compare framing, subject detail, voice timing, and continuity. Check the actual generation cost in your service. Element and file counts use different rules, so a larger number alone does not establish better reference control.
What to Check in Kling 4.0 Videos
Four Kling 4.0 limits to plan around before you build a project on it: fine hand detail, exact text, voice and scene continuity, and exact brand replication.
Review these details before delivering a video, especially when combining reference assets, keyframes or edited footage.
Hands doing detailed work.
Review fingers, tool contact, and small objects frame by frame. Keep an alternate take or practical insert available for essential close-ups.
Text you need to be exact.
Check brand names, prices, and captions. Composite exact text in your editor where accuracy matters.
Voice and scene continuity.
Review speaker identity, sound timing, and visual continuity across the whole sequence, especially at extension boundaries and in longer sequences.
Exact brand or product replication.
Compare the output with your references. Check product shape, colour, logos, and fine details across the sequence before delivery.
What this means in practice. Check the generated sequence against your brief and references. Use your editor for exact text, branding, and any corrections the generation controls do not cover.
How To Use the Kling 4.0 AI Video Generator
Generate a Kling 4.0 video in three steps: add references, describe the scene, then review and extend the result.
Choose Kling 4.0 and add references.
Select the model and add clear references for your subject, visual direction, or voice. Use only materials that help define the scene, and follow the input formats shown in the interface.
Describe your scene and choose the settings.
Describe the subject, camera, and light — a chef plating pasta, slow dolly in, warm window light from the left. Choose the duration and output settings for your project. Start with a short draft to check the composition.
Generate, review, and extend.
Review the action, voice timing, and reference details in your draft. If the scene needs more time, describe the next action and extend it. Check the join before adding captions or exporting your final edit.
Keep your prompts. Phrasing that works carries between Kling versions. A saved prompt library is worth more than any single clip.
Kling 4.0 Credit Packs and Plans
Compare Kling 4.0 credit packs and monthly plans. One-time credits never expire, and every credit works across 720p, 1080p and 4K generation.
Starter
$9.9 one-time
One-time credit pack
Kling 4.0 credits are added instantly after checkout and never expire.Includes
- 99 Kling 4.0 credits
- Credits do not expire
- Access to the creative workspace
- 720p, 1080p and 4K video output
- Clips from 3 to 30 seconds
- Synchronized multilingual audio
- Email support
Most Popular
Basic
$29.9 one-time
One-time credit pack
Kling 4.0 credits are added instantly after checkout and never expire.Includes
- 330 Kling 4.0 credits
- Credits do not expire
- Access to the creative workspace
- 720p, 1080p and 4K video output
- Clips from 3 to 30 seconds
- Synchronized multilingual audio
- Email support
Plus
$49.9 one-time
One-time credit pack
Kling 4.0 credits are added instantly after checkout and never expire.Includes
- 600 Kling 4.0 credits
- Credits do not expire
- Access to the creative workspace
- 720p, 1080p and 4K video output
- Clips from 3 to 30 seconds
- Synchronized multilingual audio
- Email support
Professional
$99.9 one-time
One-time credit pack
Kling 4.0 credits are added instantly after checkout and never expire.Includes
- 1250 Kling 4.0 credits
- Credits do not expire
- Access to the creative workspace
- 720p, 1080p and 4K video output
- Clips from 3 to 30 seconds
- Synchronized multilingual audio
- Email support
Kling 4.0 Frequently Asked Questions
Capabilities, references, pricing, and access.
What is Kling 4.0?
Kling 4.0 is an AI video model from Kuaishou that generates 3–30-second videos in 720p, 1080p or 4K. It accepts up to 15 Omni Reference assets in total and up to 10 keyframe images, and outputs multilingual synchronized audio with two-channel stereo sound.
How long can Kling 4.0 videos be?
Kling 4.0 generates 3–30 seconds in a single pass. Longer sequences use the extension workflow, which is a separate step: check the extension options available in your service rather than treating an extended video as one generation.
Does Kling 4.0 output 4K?
Yes. Kling 4.0 supports 720p, 1080p and 4K output. Choose the resolution available in your selected mode, and note that resolution and HDR are separate settings; verify the export options your delivery requires.
How does Omni Reference work?
Omni Reference accepts up to 15 assets in total across images, videos, voice references and subject elements. The categories share that limit: up to 10 images, up to 5 videos with a combined duration of 30 seconds, and up to 7 subject elements. The counts are not separate allowances that can be added together.
Does Kling 4.0 support voice references?
Yes. Voice references guide a subject’s voice and count towards the total of 15 Omni Reference assets. Combine them with multilingual audio-visual synchronization, then review the dialogue timing in the output.
Can I edit an existing video with Kling 4.0?
Yes. Kling 4.0 video editing takes up to 5 input clips, including one primary video. Each clip must be 3–30 seconds long and the combined duration must not exceed 30 seconds. You describe the expression, movement, background or style to change.
How many keyframes can Kling 4.0 use?
Kling 4.0 accepts up to 10 keyframe images. Use them to define important visual moments, character states and scene changes, and keep the subject and visual direction consistent between frames.
How does Kling 4.0 compare to Kling 3.0?
Kling 4.0 generates up to 30 seconds per pass, against the 15-second Kling 3.0 limit listed in our comparison. It adds up to 10 keyframe images and up to 15 Omni Reference assets in total. Compare both models on the same brief, then check the settings and cost in your chosen service.
How much does Kling 4.0 cost, and can I use my existing credits?
Kling 4.0 pricing starts at $9.9 for a 99-credit pack, and monthly plans refresh every 30 days. One-time credits never expire. Credits purchased here are separate from credits on any other service; see the pricing table on this page for every tier.
Can I use Kling 4.0 for free?
You can create an account and explore the Kling 4.0 interface for free. Generating a video uses credits from your account: one-time packs never expire, and monthly plans refresh every 30 days.
Is there a Kling 4.0 API?
Kling 4.0 API access is separate from web access, and this page does not publish an endpoint. Check your provider documentation for model IDs, supported inputs, modes and billing before you build an integration.
Where can I use Kling 4.0?
Use the creation panel at the top of this page to set your prompt, references and output settings, then generate a clip. API access is a separate route; check your provider documentation.
Does Kling 4.0 add a watermark?
Watermarks depend on the service and plan you generate through, not on the model alone. Check the commercial-use terms of your plan, and confirm you hold the rights to your reference materials before publishing an output.
How long does Kling 4.0 take to generate a clip?
Generation time depends on the duration, resolution and reference inputs: a short draft finishes faster than a 30-second 4K clip. The queue shows the status of your job while it runs.
Does Kling 4.0 support multilingual audio?
Yes. Kling 4.0 supports multilingual audio-visual synchronization, voice references and two-channel stereo output. Choose the language and delivery style for each speaker, then review pronunciation and timing before delivery.
Explore the Kling 4.0 AI Video Generator
Start from a prompt, an image or a reference video, and generate your first Kling 4.0 clip.