Room for the whole scene.
The 3–30-second range gives an action, reveal or conversation time to develop within a single generation.
UP TO 30 SECONDSKling 4.0 AI Video Generator
Imagine it. Direct every moment.
Longer stories. Expressive performance. Native stereo sound. A new chapter in AI filmmaking, with the references and keyframes to shape your vision.
Live on Unify. Create in 720p or 1080p, from 3 to 30 seconds.
3–30sGeneration range
1080pOutput on Unify
10 keyframesVisual story direction
StereoNative two-channel audio
OFFICIAL KLING 4.0 DEMOPROVIDER DEMONSTRATION
KLING 4.0 / 01
Stable action & camera movement
Official Kling AI demonstrations. Footage supplied by the provider.View the official announcement ↗
THE NEXT CHAPTER OF KLING
More life in every frame.
Kling 4.0 pairs longer storytelling with finer visual direction. Every capability below is ready to use in the Unify video generator.
Direct the defining moments.
Use up to ten keyframe images to guide character states, scene changes and the visual beats of a story.
10 KEYFRAMESReferences with a purpose.
Omni combines image, video, voice and subject references to guide identity, composition, movement and performance.
15 COMBINED REFERENCESSound belongs in the shot.
Two-channel stereo and improved lip-sync bring dialogue, performance and ambience into the visual sequence.
STEREO AUDIOKling 4.0 motion control.
Use video references to guide character actions, camera movement and timing. Direct performances and follow the rhythm of a motion reference.
REFERENCE-BASED MOTION CONTROLA more cinematic finish.
Create in 720p or 1080p on Unify, with 21:9 ultrawide composition. Kling AI announces 4K and 10-bit HDR as coming soon.
720P & 1080POMNI REFERENCE
Bring the vision. Shape the motion.
A character image can guide identity. A video can guide movement. A voice reference can guide performance. Give every input a clear role in the scene.
- Guide composition with images, grids, storyboards or keyframes.
- Use video references for action, pacing and camera movement.
- Carry recurring subjects through a directed sequence.
- Use targeted edits for expressions, backgrounds, camera or style.
For editing, the provider lists up to five input clips, including one primary video. Each clip must be 3–30 seconds, with a combined maximum of 30 seconds.
ONE DIRECTED GENERATION
15combined reference items
Image referencesSubjects, layouts, style & visual beats
10Video referencesUp to 30 seconds combined
5Subject elementsIncluding up to 3 video-based elements
7Audio referencesVoice reference only
VOICEIndividual limits sit within the 15-item total. Ten images, five videos and seven elements are separate ceilings, not an additive allowance.
KLING 4.0 VS KLING 4.0 FLASH
Choose the pace of your process.
Standard 4.0 is built for longer, higher-resolution production and is the model live on Unify. Flash focuses on faster iteration at 720p and is not offered on Unify.
| Capability | Kling 4.0 | Kling 4.0 Flash |
|---|---|---|
| Generation length | 3–30 seconds | 3–20 seconds |
| Output resolution | 720p and 1080p on Unify · 4K announced by Kling | 720p |
| Dynamic range | 10-bit HDR at 1080p / 4K · coming soon | 8-bit SDR |
| Text and image to video | Supported | Supported |
| Omni references | Supported | Supported |
| Motion control with video references | Guide character actions, camera movement and timing | Not specified in the Flash release table |
| First and last frames | Supported | Not specified in the Flash release table |
| Multi-keyframe input | Up to 10 keyframe images | Not specified in the Flash release table |
| Aspect ratios | 21:9, 16:9, 1:1, 9:16, Auto | Not specified in the Flash release table |
| Audio output | Two-channel stereo | Not specified in the Flash release table |
| Prompt length | Up to 8,000 tokens | Not specified in the Flash release table |
| Text in video | Multilingual lettering, emoji and logos | Not specified in the Flash release table |
Kling AI also announces repeated extension up to two minutes, 4K and HDR as coming soon; they are not part of Kling 4.0 on Unify yet. Specifications checked October 28, 2026.
CREATIVE POSSIBILITIES
From product reveal to plot twist.
Write briefs for cinematic campaigns, short stories, dialogue scenes and stylized animation. Start with a focused shot, then build the sequence around it.
PRODUCT / CAMERA DIRECTION
Make the reveal feel real.
A brushed silver camera rests on a dark stone plinth. Begin on the textured shutter button, then track slowly around the camera as a soft strip of light crosses the metal. Preserve the product shape and fine surface detail. One continuous shot, restrained cinematic lighting, quiet studio ambience, no added text.
Prepare a sharp product reference. Use one camera move and check small details before expanding the scene.
STORY / KEYFRAME DIRECTION
Give every beat a purpose.
Use the supplied keyframes as the visual beats of a continuous scene. A traveler steps into a quiet station, notices a familiar face across the platform, then smiles in recognition. Preserve the character's appearance between beats. A slow tracking camera, warm evening light, natural footsteps and distant station ambience.
Prepare opening, middle and closing images. Keep wardrobe, lighting and character identity consistent across frames.
PERFORMANCE / NATIVE SOUND
Let the voice carry the scene.
A musician sits beside a studio microphone, looks toward the camera, and says in a relaxed British English voice: 'Let's take it from the top.' A small smile follows. A gentle push-in, natural skin texture, soft room ambience, synchronized dialogue, no music or on-screen captions.
Name the speaker, language and exact dialogue. Listen to the audio and review mouth movement alongside the picture.
YOUR FIRST KLING 4.0 BRIEF
Plan the shot. Create it today.
Build a clear brief and collect the references you want to use. Then open the video generator with Kling 4.0, check the settings and the generation quote, and render.
Define the shot
Name the subject, action, camera, light and sound. Use timing cues when the scene contains more than one visual beat.
Prepare your references
Choose images, motion clips and keyframes that agree on identity and style. State which detail each reference should guide.
Review and refine
Start with a short draft. Check faces, hands, lettering and audio, then change one instruction at a time.
KLING 4.0 4K VIDEO
A closer look at cinematic detail.
Kling 4.0 brings more detail to characters, lighting and textures. Build scenes for cinematic campaigns, product storytelling and a larger screen, in 720p or 1080p on Unify.
Kling AI announces 4K output and 10-bit HDR at 1080p and 4K as coming soon, for richer color and smoother transitions between highlights and shadows. Watch the provider's visual-quality demonstration.
REFERENCE-BASED CREATIVE DIRECTION
Kling 4.0 motion control.
Bring the movement you have in mind. Kling 4.0 motion control uses video references to guide character performances, actions, camera movement and narrative pacing.
Use a motion reference to communicate a dance, a sports action or a camera move, then pair it with the character and visual direction for your scene. Give timing, body movement and rhythm a clear role in the brief.
- Guide character action and expressive performance.
- Carry camera movement and pacing from a reference.
- Add up to five reference videos in the video generator.
From reference to result.
EXPLORE THE LOOK AND FEEL
See the scene. Hear the story.
Expressive performances, cinematic movement and sound that belongs in the picture. Take a closer look at Kling 4.0.
CINEMATIC STORYTELLING
Build a world worth exploring.
Atmosphere, scale and a story that keeps moving.
ACTION & CAMERA MOVEMENT
Make every move count.
Follow the action through an expressive, dynamic scene.
UNIFY PLANS & PRICING
A plan for your creative rhythm.
Kling 4.0 is live on Unify. Compare Unify's subscriptions and choose the plan that fits how often you create.
Starter
$9.99/mo
or $9.49/mo billed yearly
- 170 Credits/mo
- 1 Daily login credit
- Priority queue
- Access to latest AI models
- 1 parallel video generation
Pro
$24.99/mo
or $22.49/mo billed yearly
- 365 Credits/mo
- 2 Daily login credits
- Fast queue
- Access to latest AI models
- Studio access
- 1 parallel video generation
MOST POPULAR
Scale
$49.99/mo
or $39.99/mo billed yearly
- 750 Credits/mo
- 3 Daily login credits
- Top queue
- Access to latest AI models
- Studio access
- 2 parallel video generations
BEST VALUE
Ultra
$149.99/mo
or $112.49/mo billed yearly
- 2,400 Credits/mo
- 4 Daily login credits
- Ultra queue
- Access to latest AI models
- Studio access
- 3 parallel video generations
KLING 4.0 FAQ
A little more clarity.
Availability, reference inputs, Flash specifications and what Kling AI still has coming.
Does Kling 4.0 support motion control?
Yes. Kling 4.0 supports reference-based motion control through video inputs that guide character performances, actions, camera movement and narrative pacing. Pair a motion reference with a character or scene reference to communicate your intended movement. Kling 4.0 is live on Unify, so you can add motion references in the video generator today.
What is Kling 4.0?
Kling 4.0 is Kling AI's video model for text-to-video, image-to-video, multi-keyframe direction, Omni references and video editing. It generates 3 to 30 seconds with two-channel stereo audio. On Unify it runs in 720p and 1080p.
Is Kling 4.0 available on Unify?
Yes. Kling 4.0 is live on Unify. Open the video generator, choose Kling 4.0, and create from a prompt, images, keyframes, reference videos or voice references in 720p or 1080p. Kling 4.0 Flash is not offered on Unify.
How is Kling 4.0 Flash different?
Flash is designed for faster, frequent iteration. Its announced specification is 3–20-second clips at 720p with 8-bit SDR, text-to-video, image-to-video and Omni reference support. The standard Kling 4.0 model, the one live on Unify, generates 3–30 seconds in 720p or 1080p.
How many reference assets does Kling 4.0 support?
The release lists up to 15 reference items combined across images, videos, voice references and elements. Individual limits include 10 images, five videos totaling up to 30 seconds, and seven elements including up to three video-based elements. These limits share the combined allowance; they do not add up to 22 separate inputs.
Does Kling 4.0 support native audio and multiple languages?
Yes. Kling 4.0 generates stereo audio with improved lip-sync, with support for languages including Chinese, English, Japanese, Korean, Spanish, Portuguese, German and French, plus multiple accents and dialects. Audio reference input is for voice reference only.
Can Kling 4.0 generate readable text inside a video?
Kling 4.0 improves text generation across multiple languages, including lettering, emoji and logos that stay more consistent through motion. Review spelling and fine details before publishing; add final copy in an editor when exact typography is essential.
Can Kling 4.0 generate HDR or two-minute videos?
Not yet. Kling AI marks 10-bit HDR and 4K as coming soon, and Kling 4.0 on Unify generates in 720p and 1080p today. Repeated extension to a total of two minutes is also announced as coming soon. A single generation is 3–30 seconds.
Can I get Kling 4.0 Unlimited on Unify?
Yes. New Ultra and Scale subscriptions include Kling 4.0 Unlimited. The Kling 4.0 Unlimited page lists each plan's settings and current prices.
LIVE ON UNIFY
Your next story starts with a vision.
Bring your references and shape the brief. Kling 4.0 is ready in the Unify video generator.
CONTINUE EXPLORING
Model information verified October 28, 2026 against Kling AI's official 4.0 announcement and the Kling 4.0 API. Capabilities Kling AI marks as coming soon, such as 4K and HDR, are not yet part of Kling 4.0 on Unify.