Kling 4.0 AI Video Generator: 30-Second 4K Video from Text, Images and References

Generate up to 30-second videos in 4K, with up to 15 reference assets, 10 keyframe images, multilingual audio-visual synchronization and stereo sound.

Reference media *

Click to upload referencesUp to 10 PNG/JPEG images and 5 MP4/MOV videos100 MiB per file · Video shortest edge at least 700px

Prompt *Kling 4.0 Guide

Type @ to reference your uploaded media.0 / 8000

Resolution

Aspect ratio

Duration5s

3s30s

1. SCENE CONTEXT: EXACTLY 1 DRAGON — NO DUPLICATES.A 30-second, six-shot dark-fantasy action sequence. A colossal dragon roars, launches from a mountain pinnacle, accelerates toward a burning coastal city, dives between its towers and performs a devastating aerial fire attack. Epic scale, very fast pacing, real-time motion.

2. ACTIVE REFERENCES: controls the burning coastal city, Gothic architecture, harbour, mountain horizon, existing fires, smoke columns, storm clouds and lightning. Controls the dragon’s identity, black-grey scales, red-brown wing membranes, horns, dorsal spines, four legs, two wings, long tail and opening rocky pinnacle.

3. LOCATION MAP: The pinnacle overlooks the coastal city. The harbour lies screen-left, the central castle lies ahead, and the densest burning district lies centre-right. Direction of travel always runs from the mountain toward the city centre. Cameras remain behind, below or on the dragon’s left side without reversing the travel axis.

4. FIRST FRAME AND SPATIAL BLOCKING: The dragon is already crouched on the pinnacle, wings spread, hind legs compressed and head aimed toward the city. Its jaws open for one roar. Fires flicker below; connected smoke columns bend with the wind and the entire storm ceiling visibly moves.

5. FORMAT MODE: Six shots with hard cuts: SHOT 1 — 0.0–4.0s: roar and launch.SHOT 2 — 4.0–9.0s: high-speed pursuit toward the harbour.SHOT 3 — 9.0–13.5s: low flight across the water toward the city.SHOT 4 — 13.5–19.0s: first fire attack between towers.SHOT 5 — 19.0–25.0s: banking pursuit and sweeping fire attack.SHOT 6 — 25.0–30.0s: dragon climbs above the burning city. Cuts are motivated by wing wipes, smoke wipes and close architectural passes. No fades or dissolves.

6. OPTICS SHOT: 1: 24mm, 74° horizontal FOV, low-angle environmental wide.SHOT 2: 18mm, 90° FOV, rear pursuit perspective.SHOT 3: 24mm, 74° FOV, low water-level chase.SHOT 4: 28mm, 65° FOV, roof-height tracking.SHOT 5: 24mm, 74° FOV, close side-rear pursuit.SHOT 6: 18mm, 90° FOV, monumental aerial wide.Moderate-deep focus. Strong natural motion blur on wing tips, water, smoke, embers and nearby buildings.

7. CAMERA: All cameras have obvious physical handheld instability.SHOT 1 rapidly tilts upward as the dragon launches; wing pressure violently jolts the operator.SHOT 2 follows 12 metres behind the tail with intense wind buffeting and rapid vertical vibration.SHOT 3 races just above the water behind the dragon; waves and burning boats whip past the frame edges.SHOT 4 tracks through the street canyon at roof height.SHOT 5 follows the dragon through a hard bank, nearly losing framing as towers pass dangerously close.SHOT 6 pursues upward, then settles into a wide view of the devastated city.No smooth floating or mechanically perfect movement.

8. ACTION TIMING: 0.0–0.8s: The dragon releases one thunderous roar, neck extended and eyes fixed on the city.0.8–2.0s: Hind legs drive into the pinnacle; claws fracture the rock.2.0–4.0s: The dragon launches and performs two powerful wing strokes. Dust and stone explode backward.4.0–6.5s: Hard cut behind the dragon already accelerating at high speed.6.5–9.0s: It folds its legs beneath its body and dives toward the harbour. Smoke streams across its wings.9.0–11.5s: The dragon skims rapidly above rough water. Wing tips nearly touch the waves.11.5–13.5s: It passes burning ships and climbs over the sea wall. A tower wipes across the lens.13.5–15.0s: Hard cut inside the city. The dragon bursts through smoke between Gothic towers.15.0–19.0s: It releases one continuous orange-white fire jet, sweeping across the left row of rooftops while maintaining full speed.19.0–21.5s: The dragon snaps into a hard right bank around the central tower; the tail swings with delayed inertia.21.5–25.0s: Its connected fire stream sweeps across the avenue and strikes the right-side tower. Burning masonry and embers fall behind it.25.0–27.0s: The dragon stops breathing fire, beats its wings powerfully and climbs above the rooftops.27.0–30.0s: It ascends into the storm light and glides over the burning city. The camera widens to reveal spreading flames, smoke columns and the harbour below.

9. PHYSICS: The dragon has immense believable mass despite its speed. Wing strokes originate in the shoulders; membranes stretch under aerodynamic load. The torso, legs and tail react with delayed inertia. Wing wakes tear openings through smoke, disturb water and buffet nearby fires. Fire emerges only from the open mouth as a pressure-driven stream with a white-hot core, orange turbulent edges and visible heat distortion. Buildings ignite progressively at visible impact points. Debris follows gravity and the dragon’s wake.

10. LIGHTING: Cold storm daylight enters from upper-left. Existing fires provide orange underlight beneath the dragon. The fire stream becomes a moving motivated key light, casting travelling highlights over scales, towers and smoke. Sunbeams break through the clouds during the final climb. Preserve detail in the flame core and keep the dragon’s silhouette readable.

11. AUDIO: No dialogue. Synchronized dragon roar, claw scraping, rock fracture, leather-wing thunder, violent wind, wave impacts, burning ships, collapsing masonry, ember hiss and pressurised fire blasts. Epic original score: rapid war drums, low brass ostinato and urgent strings begin immediately. Wordless low choir enters at launch. Percussion accelerates during the chase. Full orchestra strikes with each fire attack, then expands into a dark triumphant finale during the ascent. Roar, wings and fire remain louder than the music.

12. CHARACTER ACTING: The dragon acts with focused predatory intent. Its eyes remain locked on its flight path and successive building targets. During acceleration, its head lowers and shoulders drive aggressively. Inside the city, the neck deliberately guides the fire stream while the tail controls each bank. In the final shot, its chest opens and posture changes from attacking aggression to airborne dominance.

13. STYLE: Grand apocalyptic dark-fantasy cinema, aggressive pursuit photography, monumental scale and battlefield energy. Charcoal and storm blue occupy 60% of the palette, smoke-brown stone 30%, and fire orange 10%. Weathered 35mm film texture with old-photograph softness, organic grain and no digital sharpening.

14. QUALITY: Consistent dragon identity and anatomy through every cut: one head, two wings, four legs and one tail. Stable city architecture, coherent wing cycles, attached mouth fire, volumetric smoke and physically connected destruction. Natural fast-motion blur without ghost copies, anatomy mutation or detached flames.

15. POSITIVE CONSTRAINTS: Exactly one dragon remains visible throughout the sequence. It launches before 2 seconds, reaches the harbour by 9 seconds, enters the city at 13.5 seconds and completes two fast fire-attack passes before climbing away. Every shot preserves the mountain-to-city direction. Strong camera shake communicates extreme speed while the dragon remains readable. City fires continuously emit smoke, clouds visibly travel across the sky, and new destruction appears only where the connected fire stream strikes.

References

Use as a 30-second adaptation.

Shot 1 (5s): Use Reference Image 1 for composition. A moonlit night with sparse stars. A colossal white lotus glowing with moonlight blooms in the sky, radiating tiny white sparkles and golden flecks of light. The lotus dominates most of the frame, appearing like an enormous luminous moon, yet remains visibly distant from the character.

In the foreground, a breathtakingly beautiful woman in white traditional Chinese attire with a flowing golden gauze outer robe gazes toward the distant lotus with one hand gently raised. Her figure is much smaller than the lotus but closer to the camera, creating a pronounced sense of depth and spatial separation. Her long, waterfall-like black hair, two slender white hair ribbons, and flowing garments sway naturally in the breeze. Moonlight illuminates her silhouette, tracing her body with a delicate silver-white rim light, giving her an ethereal, celestial presence.

The enormous lotus gently pulses with light as if breathing. Each petal subtly rises and falls, while delicate streams of water carrying tiny starlike glimmers trickle continuously from the petals. Golden particles drift slowly back and forth around the flower.

The camera slowly pans to the right. The woman remains stationary in her position, while her hair, ribbons, and clothing move organically in the wind. Subtle parallax and perspective shifts reveal the lotus's changing appearance as the camera moves. Motion is fluid, natural, and physically believable, with cinematic depth and an enchanting celestial atmosphere.

Shot 2 (5s): Use Reference Image 2 for the lotus design and the character's pose and composition. Under a starry, moonlit sky, an enormous ink-black lotus blooms on the surface of a flowing river. Its magnificent dark petals fill almost the entire frame, forming the dominant visual subject. The lotus emits a soft, otherworldly glow that illuminates the surrounding scene. Its hollow center is large enough to cradle a beautiful woman dressed in pale, muted celadon-blue traditional Chinese clothing.

She reclines comfortably in the center of the lotus, legs crossed, both hands interlaced behind her head, as if peacefully dozing. Her pose is relaxed and carefree. The lotus's center has an almost translucent luminous quality, delicately edged in white and touched with subtle golden radiance. The woman occupies a relatively small portion of the frame.

Use a strictly vertical top-down overhead shot. Tiny fireflies sparkle throughout the composition. The woman gently shifts and moves her hands in a relaxed, unhurried manner. A soft breeze causes her hair and flowing skirt to sway naturally, with subtle, lifelike movements.

The massive black lotus slowly pulses between brighter and dimmer states, like a calm, steady breath. Golden fireflies drift gradually in the same direction. Water flows continuously beneath the flower, carrying the lotus slowly toward the left side of the frame. The camera gradually pulls back, revealing more of the flowing water and the surrounding field of fireflies while preserving the lotus as the central visual focus. All motion remains smooth, graceful, and dreamlike.

Background Music: elegant, classical Chinese instrumental music evoking a celestial fairyland. A delicate guzheng and Chinese flute duet, with graceful melodies, spacious ambience, and a serene, otherworldly atmosphere. Preserve the beauty and refinement of traditional Chinese aesthetics.

References

Generate a 30-second, horizontal 16:9 realistic cinematic street escape video. The entire video must be one continuous lateral side-tracking long take, filmed in a single shot with no cuts, no angle changes, and no scene changes. The scene takes place on a busy Manhattan-style street. Use a cool-toned, low-saturation film look, shallow depth of field, and realistic handheld shoulder-rig or gimbal camera movement. The street features outdoor restaurant seating, yellow taxis, parked vehicles, newspaper stands, fire hydrants, construction scaffolding, storefront windows, white steam rising from subway ventilation grates, pedestrians, and dense crowds in the distance. Foreground objects continuously sweep rapidly across the frame, creating natural occlusions and a convincing sense of street depth. The camera remains parallel to the street, moving laterally to the left while following a young woman running. She carries a large, overstuffed travel bag that is visibly heavy. As she runs, the bag swings with a delayed motion and thuds heavily against the side of her leg, causing her body to tilt slightly off balance. She looks tense and exhausted, breathing rapidly and occasionally glancing back over her shoulder, but no pursuers should appear anywhere in the frame.

0–5s: Establishing shot of a calm street. The camera initially frames an outdoor restaurant seating area. A passerby is lifting a cup of coffee, with round metal tables, wicker chairs, awnings, and pedestrians nearby. Realistic street ambience dominates the audio: traffic, voices, footsteps, and distant horns. The camera moves slowly to the left, keeping the scene calm. A blurred figure of the female protagonist gradually appears at the far right edge of the frame, rushing in at high speed.

5–12s: The woman rushes into frame, and the camera catches up with her. She bursts in from the right, and the camera rapidly accelerates laterally to the left as if her movement is pulling it along, catching up with her. The focus shifts from the street scenery to her face, with slight overshooting and refocusing allowed during the transition. She runs at full speed, mouth open as she gasps for air, brows tightly furrowed, jaw clenched. She looks back over her shoulder twice, with the second glance more pronounced, revealing fear and exhaustion. She carries the heavy, oversized travel bag, which swings with a delay in response to each arm movement and thuds heavily against her leg, throwing her body slightly off balance. She brushes past outdoor seating and runs over subway ventilation grates, stirring up white steam. Pedestrians and street objects in the foreground sweep rapidly across the frame.

12–15s: Occlusion and losing sight of her. A yellow taxi or a group of pedestrians quickly passes between the camera and the woman, completely obscuring the frame for approximately half a second to one second. When the obstruction clears, the woman is no longer at the center of the frame. The camera continues moving laterally but noticeably slows down and briefly loses focus, as if the camera operator is searching for her. The camera sweeps past a lamppost, pedestrians from behind, a newspaper stand, parked vehicles, and reflections in storefront windows.

15–21s: Finding the woman again. The camera continues searching along the sidewalk. Focus briefly shifts back and forth between foreground pedestrians, storefront reflections, and street objects before reacquiring the woman's back and profile farther away. She is still running to the left, but she is more exhausted than before. The camera accelerates again to catch up with her, pulling focus from the foreground pedestrians back to her body and face. Her pace begins to slow, her breathing becomes heavier, her strides shorten, and the travel bag feels increasingly burdensome. She briefly switches the bag to her other hand, then immediately switches it back, gripping the handle tightly as the weight pulls her body increasingly off balance.

21–30s: Running into the crowd and gradually disappearing. The camera reacquires a full-body side view of the woman. She runs past construction scaffolding, while green safety netting and metal poles sweep rapidly across the foreground one by one. Her running reflection briefly appears in storefront glass. Sweat is visible on her face, and her expression shifts from panic to exhausted determination. Finally, she rushes into the dense crowd at the entrance to a pedestrian street, using her shoulder to push past people blocking her way. Her figure is repeatedly obscured by foreground pedestrians, leaving only intermittent glimpses of her profile, jacket, and heavy travel bag. The camera continues moving slowly to the left, struggling to keep her in frame but gradually falling behind. The final shot remains on the flowing crowd, with only her back and a corner of the travel bag visible before they disappear between people.

Audio: No dialogue, no voice-over, and no background music. The soundscape should consist primarily of realistic street ambience: traffic, voices, footsteps, and distant horns. When the camera catches up with the woman, her rapid breathing, footsteps, and the sound of the travel bag thudding against her leg should dominate the center of the soundscape. During occlusion, the whoosh of a passing taxi or the footsteps of the crowd should overpower everything else. When the camera loses sight of her, her breathing should become more distant. After she is found again, her breathing should grow louder and closer. Toward the end, the footsteps and voices of the crowd should gradually swallow her sounds.

Visual style: Realistic cinematic street-chase atmosphere, cool-toned, low-saturation film color grading, detailed shadows, soft highlights, and fine film grain. Shallow depth of field, with foreground and background naturally blurring during movement. Focus should exhibit slight overshooting, refocusing, and brief moments of defocus, resembling manual focus adjustments by a real camera operator. Camera movement should have the authentic feel of a handheld shoulder rig or gimbal, with subtle vertical bobbing, lateral sway, and the inertia of acceleration and deceleration, but no violent shaking.

Negative Constraints: No cuts, no jump cuts, no white flashes, no dissolves, no slow motion, no speed changes, no subtitles, no watermarks, no UI, and no background music. No pursuers, no three men in suits, and no additional clearly identifiable antagonist characters. No mechanical, rail-mounted camera movement. No sliding character motion; the running must convey realistic footfalls and physical weight. Do not make the travel bag appear weightless. Do not make the woman run gracefully or calmly. No body intersections or clipping, no merging of people in the crowd, and no sudden changes of street, character, clothing, or camera angle.

Keyframes to Video

Use as a 30-second adaptation.

What is Kling 4.0?

Kling 4.0 Overviews

Kling 4.0 is an AI video generation model developed by Kuaishou, released globally on 15 October 2026. It turns text, images and reference media into a single clip of 3 to 30 seconds at 720p, 1080p or 4K, with two-channel stereo audio and synchronized multilingual dialogue. One generation takes up to 10 keyframe images and up to 15 Omni Reference assets, a workflow covered in our Kling 4.0 user guide. It succeeds Kling 3.0, doubling that model's 15-second limit — our Kling 4.0 review tests that in finished shots.

Kling 4.0 — AI-generated illustration of one character across three cinematic keyframes

Kling 4.0 Specs

Model

Kling 4.0

The Kling video model developed by Kuaishou, with text, image and multimodal reference inputs.

Variants

Kling 4.0 & Kling 4.0 Flash

Full Kling 4.0 supports up to 30 seconds and 4K output. Flash runs 3–20 seconds at 720p for faster drafts.

Duration

3–30s

Generate a clip in a single pass. Kling 4.0 Flash supports 3–20 seconds per generation.

Resolution

720p · 1080p · 4K

10-bit HDR at 1080p and 4K is coming soon. Aspect ratios: 21:9, 16:9, 1:1, 9:16 and Auto. Flash outputs at 720p.

References

Up to 15 multimodal

Combine images, video clips, subjects and voice samples. Up to 10 images, 5 videos and 7 saved subjects within the reference limit.

Keyframes

Up to 10

Control the timing of key moments, with first and last frame control alongside text-to-video and image-to-video.

Audio

Dual-channel stereo

Generate speech and scene audio with regional accents and dialects.

Languages

9 languages

Multilingual speech with regional accents and dialects, alongside dual-channel stereo audio.

Prompt length

8,000 tokens

Describe the scene, camera movement and a complete shot list in one instruction.

Video extension

Up to 2 minutes

Extend a video across multiple passes. This feature is listed as coming soon.

Kling 4.0 Features

Longer videos, flexible references, and multilingual sound and picture in one workflow.

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.

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.

Read about Kling 4K output and the settings available in that tool.

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.

Kling 4.0 Creative Controls

Shape the subject, voice, and continuation of your scene with a clear creative brief.

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

Six ways to create with Kling 4.0.

Adapt your references and shot direction to each project, from a short product reveal to an extended 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

Watch eight Kling 4.0 demos. Hover to preview or select play, then select Recreate to load the prompt into the editor.

Read our hands-on Kling 4.0 review for a closer look at its capabilities, examples and limitations.

The elevator shortcut

Kling 4.0 · 30s · 16:9

Skybridge escape

Kling 4.0 · 15s · 16:9

Arrow tracking shot

Kling 4.0 · 15s · 16:9

A sweeping coastal camera rise

Kling 4.0 · 20s · 16:9

A close-up in the recording booth

Kling 4.0 · 30s · 16:9

A piano performance at sea

Kling 4.0 · 22s · 16:9

Whale breach from two perspectives

Kling 4.0 · 15s · 16:9

Helicopter escape

Kling 4.0 · 20s · 16:9

1 / 8

Who is Kling 4.0 Built For?

Four groups and the video workflows Kling 4.0 supports for each.

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

Compare video duration, resolution, reference inputs and creative controls.

Feature comparison of Kling 4.0, Kling 3.0 / Omni, and Seedance 2.5
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

Read the full Kling 4.0 vs Kling 3.0 comparison or compare Kling 4.0 vs Seedance 2.5 for more detail.

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 things to plan around before you build a project on it.

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

Follow these three steps in the generator on this page. The generator shows the modes and the credit cost for each setting before you submit.

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.

Plan the opening, intermediate moments and ending with the keyframe workflow in the guide.

Kling 4.0 Pricing

Kling 4.0 is billed per second. At the promo rate one second costs 2 credits at 720p and 3 at 1080p. With a reference video it is 1 and 2. The generator shows the exact cost for your settings before you submit.

Starter

$9.9one-time

99 credits included

About 6 clips of 5s at 1080p, or 9 at 720p (no video input)

Text, references and keyframe creation

3–30-second output duration

720p or 1080p output

2–3 credits per second, 1–2 with a reference video

Basic

$29.9one-time

330 credits included

About 22 clips of 5s at 1080p, or 33 at 720p (no video input)

Text, references and keyframe creation

3–30-second output duration

720p or 1080p output

2–3 credits per second, 1–2 with a reference video

Plus

$49.9one-time

600 credits included

About 40 clips of 5s at 1080p, or 60 at 720p (no video input)

Text, references and keyframe creation

3–30-second output duration

720p or 1080p output

2–3 credits per second, 1–2 with a reference video

Professional

$99.9one-time

1,250 credits included

About 83 clips of 5s at 1080p, or 125 at 720p (no video input)

Text, references and keyframe creation

3–30-second output duration

720p or 1080p output

2–3 credits per second, 1–2 with a reference video

Choose one-time credits • Flexible billing options

✓Choose one-time✓Credits never expire✓Secure payments✓Email support support@klingmotion.com

Taxes may apply based on your location and will be calculated at checkout.

Kling 4.0 — Frequently Asked Questions

Video duration, references, multilingual audio, pricing, and access.

What is Kling 4.0?

Kling 4.0 is an AI video model from Kuaishou. It generates 3–30-second videos in 720p, 1080p or 4K, with multilingual synchronized audio and stereo output. Use up to 15 Omni Reference assets in total and up to 10 keyframe images to direct the scene.

How long can Kling 4.0 videos be?

Kling 4.0 supports 3–30 seconds in a single generation. Video extension is a separate workflow; check the extension options available in your service rather than treating an extended video as a single 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. Resolution and HDR are separate settings; verify the export options required for your delivery. See the Kling 4K output options.

How does Omni Reference work?

Use up to 15 reference assets in total across images, videos, voice references and subject elements. Category limits include up to 10 images, up to 5 videos with a combined duration of 30 seconds, and up to 7 subject elements. These limits share the total of 15; they are not separate allowances that can be added together.

Does Kling 4.0 support voice references?

Yes. Voice references help guide a subject’s voice and count toward the total of 15 Omni Reference assets. Combine voice direction with multilingual audio-visual synchronization, then review the dialogue timing in the output.

Can I edit an existing video with Kling 4.0?

Kling 4.0 supports video editing with up to 5 input clips, including one primary video. Each clip must be 3–30 seconds long, and their combined duration must not exceed 30 seconds. Define the expression, movement, background or style you want to change.

How many keyframes can Kling 4.0 use?

Kling 4.0 supports up to 10 keyframe images. Use them to define important visual moments, character states and scene changes. Keep the subject and visual direction consistent between frames.

How does Kling 4.0 compare to Kling 3.0?

Kling 4.0 supports up to 30 seconds per generation, compared with the 15-second Kling 3.0 limit listed here. Kling 4.0 adds up to 10 keyframe images and supports up to 15 Omni Reference assets in total. Compare the same brief and check the available settings and cost in your chosen service. See the full Kling 4.0 vs Kling 3.0 comparison.

How much does Kling 4.0 cost, and can I use my existing credits?

You can use your existing Kling Motion Control credits in the generator on this page. The required credits are shown on the Generate button and update with your selected settings. Review that cost before submitting; the pricing section lists credit packs.

Can I use Kling 4.0 for free?

Sign in to check your credit balance and any available introductory offer. Generation requires sufficient credits for the selected settings. Credit packs do not include unlimited generation.

Is there a Kling 4.0 API?

API access is separate from access through a web generator. Check your provider documentation for Kling 4.0 model IDs, supported inputs, modes, and billing before integration. This page does not announce an API endpoint.

Where can I use Kling 4.0?

Use the creation panel at the top of this page to enter a prompt or upload an image. Select the available duration, resolution and sound settings, then check the credit cost before generating. Available settings depend on the generation service.

Does Kling 4.0 add a watermark?

Check the watermark and commercial-use terms of the service and plan you choose. Model capabilities alone do not determine those terms. Review the rights to your reference materials before publishing an output.

How long does Kling 4.0 take to generate a clip?

Video duration is different from processing time. Use the estimate shown by your service, and allow time to review the result and any extensions. This page does not promise a fixed generation time.

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

Explore the video tools available on Kling Motion Control today.

Use your existing credits and review the displayed cost before generating.

Create with Kling 4.0