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Kling 4.0

Kling 4.0 AI Video Generator

Create lifelike scenes with cinematic motion, expressive characters, and stereo sound. Kling 4.0 brings Omni Reference and multi-keyframe control to every story.

50 credits

Your Vision. More Real. More in Control.

From a fleeting expression to a sweeping camera move, shape the details that make a scene feel alive. These official Kling 4.0 examples show how motion, sound, references, and story beats work together.

Cinematic Motion That Stays with the Action

Follow a character through a fast-moving scene, circle a performance, or hold a continuous tracking shot. Kling 4.0 brings smoother movement and steadier camera transitions to demanding sequences, helping the subject, setting, and action stay connected as the shot develops. Build a scene around the movement you want the audience to feel.

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Sound and Performance, Together

Give dialogue, singing, and ambient sound a place in the scene. Two-channel stereo and improved lip-sync bring voices and visual performances closer together, while subtle expressions make the delivery more natural. Direct the mood through the sound of a room, an exchange between characters, or a performance that carries the story.

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Omni Reference: Keep Your Creative Direction

Combine character, product, location, and movement references in one creative brief. Kling 4.0 accepts up to 15 reference assets across images, videos, voices, and elements, with limits for each input type. Use an image to define identity and a video to guide action or pacing, so the scene follows a more concrete visual direction.

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Tell the Story Across Multiple Keyframes

Set the moments that matter, then connect them into a sequence. Up to 10 keyframe images guide changes in character state, setting, and composition. With 3–30 second generation, a reveal, reaction, or transition has time to develop beyond a short loop, giving you more control over the beginning, middle, and end.

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Characters with More to Say

Make a glance, a pause, or a small shift in posture part of the performance. More natural facial detail, lighting, and texture bring characters closer to the camera without losing the emotion of the scene. Move between intimate portraits and wider action while keeping the performance at the center of your creative direction.

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Words That Belong in the Frame

Build readable lettering, logos, and emoji into a visual concept. Kling 4.0 improves text generation across multiple languages and keeps important on-screen information more stable through camera movement. Pair a product name with its environment or make typography part of the composition, rather than treating it only as a final overlay.

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See What Kling 4.0 Can Create

Official Kling 4.0 videos from Kling AI’s homepage: action, high-speed chases, fantasy scenes, and creative styles.

More Ways to Shape Every Scene

Start with the form of creative direction that fits your idea. Text, frames, references, and editing instructions each give you a different way to build a Kling 4.0 scene.

Text to Video

Describe the subject, action, camera, lighting, and sound in one prompt. Kling 4.0 supports up to 8,000 input tokens for detailed creative briefs, so a complex scene can include both visual direction and the timing of a performance.

Image to Video

Animate a still image, use first and last frames, or arrange keyframes to guide a sequence. Define what should move and what should stay consistent, so the original composition becomes the starting point for a purposeful shot.

Reference-Guided Creation

Use up to 10 images or up to 5 videos totaling 30 seconds, within the overall 15-asset limit. References can define characters, layouts, movement, and camera language; audio reference input is for voice guidance.

Targeted Video Editing

Refine an expression, replace a setting, or redirect a camera move while keeping the rest of the scene stable. The announced editing workflow accepts up to 5 video clips, including one primary video, within a combined 30-second limit.

Languages, Accents, and Dialects

Shape a character’s voice for the scene, with support spanning Chinese, English, Japanese, Korean, Spanish, and more. Dialect and accent options include Cantonese, Sichuanese, and American, British, and Indian English.

Frame the Story Your Way

Choose from the announced 720p, 1080p, and 4K output options and formats including 21:9, 16:9, 1:1, 9:16, and Auto. The 10-bit HDR upgrade for 1080p and 4K is marked as coming soon.

Kling 4.0 vs Seedance 2.5 vs Veo 3.1

Compare generation length, reference control, audio, and editing workflows using each model’s official specifications.

Duration

Kling 4.0

3–30 seconds

Seedance 2.5

Up to 30 seconds

Veo 3.1

4, 6 or 8 seconds; 8 seconds for reference images, 1080p or 4K

References

Kling 4.0

Up to 15 assets overall: images, videos, voice references and subject elements

Seedance 2.5

Multimodal references: up to 30 images, 10 videos and 10 audio clips

Veo 3.1

Up to 3 reference images; first and last frames

Audio

Kling 4.0

Two-channel stereo, improved lip-sync, languages and dialects

Seedance 2.5

Joint audio-video generation with audio and visual reference guidance

Veo 3.1

Native audio generated together with video

Story control

Kling 4.0

Up to 10 keyframes to guide character states, composition and story beats

Seedance 2.5

Longer narrative sequences with reference-driven camera and performance control

Veo 3.1

Frame-specific generation and extension of existing Veo videos

Editing

Kling 4.0

Targeted character, camera, background and style edits

Seedance 2.5

Audio-visual editing, white-model control and green-screen editing

Veo 3.1

Image-to-video, frame interpolation and video extension

Made for the Scenes You Want to Create

Bring a visual brief to life across advertising, character-led stories, game worlds, and animation. Each scene below comes from Kling AI’s official model demonstrations.

Product Films with a Clear Identity

Turn product and styling references into a visual story. Keep the brief focused on recognizable details, an intentional camera move, and the moment that reveals what makes the product distinct. Build a fashion sequence, a launch concept, or a product-led social video.

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Short Drama with Expressive Characters

Connect gestures, dialogue, and reactions into a scene with a clear emotional beat. References define the cast and setting, while keyframes and longer generation give an entrance, exchange, or change of mood enough time to land.

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Game Trailers with Momentum

Use concept art and scene references to establish a world, then direct action and camera movement through the key moments. Move from an environmental reveal into character action, carrying a consistent visual idea across the sequence.

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Animation beyond a Single Style

Explore stylized worlds, illustrated landscapes, clay-like characters, or felt textures. Define the visual language through references and guide the movement through the prompt, so the animation carries both a recognizable style and a deliberate story beat.

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Kling 4.0 Questions, Answered

The details you need before planning your next video.

Kling 4.0 is not connected to FastMoro AI yet. The working generator on this page defaults to Veo 3.1 Quality, and its model selector shows the model used for generation. The official Kling examples below it are separate demonstration assets.

Kling AI’s release announcement schedules the full model for October. Kling 4.0 Flash entered limited early access on September 28. Check Kling AI for the current rollout and account availability.

The announced Kling 4.0 range is 3–30 seconds per generation. Flash supports 3–20 seconds. Repeated video extension reaching a total of two minutes is listed as coming soon, rather than an available feature.

Omni Reference combines visual assets and subject references to guide identity, composition, action, and pacing. Kling 4.0 supports up to 15 assets overall, with separate limits for images, videos, voices, and elements.

Kling 4.0 supports up to 10 keyframe images. Use them to define important changes in character state, location, or composition, then describe how the sequence should move between those moments.

The full model lists two-channel stereo output and improved lip-sync, with support for multiple languages, accents, and dialects. Voice reference is supported; general audio reference is not listed as an input.

The full-model specification lists 720p, 1080p, and 4K. 10-bit HDR at 1080p and 4K is marked as coming soon. Flash is listed separately at 720p and 8-bit SDR.

The video examples come from Kling AI’s official website and model release announcement. They showcase Kling’s creative capabilities rather than outputs from the current FastMoro AI generator. Official release

Jump to: Capabilities · Official examples · Creative controls · Model comparison · Use cases · FAQ

Free to Start

Bring Your Next Scene to Life

Start with a subject, a moment, and a camera move. Create a video in the Studio, or visit Kling AI to try the model through its official rollout.

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