Kling 4.0 is the fourth-generation Kling AI video model from Kuaishou, built for native 30-second clips, multi-keyframe storytelling, Omni references and up to 4K 10-bit HDR output.
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Kling 4.0 generation is coming soon
This workspace will open for generation once Kling 4.0 is available on our platform. In the meantime, you can create videos with Kling 3 or Seedance 2.5.
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Kling 4.0
Kling AI video model
Kling 4.0 · Model overview
Kling 4.0 is the fourth-generation video model from Kling AI, Kuaishou's AI video platform. It focuses on visual realism, creative control and narrative completeness: a single generation can run for 30 seconds, follow up to 10 keyframes and draw on up to 15 multimodal references, with stereo audio and up to 4K 10-bit HDR output.
Generate up to 30 seconds in a single pass, twice the 15-second limit of Kling 3.0, with room for an opening, the main action and a complete ending.
Place up to 10 keyframes along the timeline to lock composition, character positions and story beats, while Kling 4.0 generates the motion between them.
Combine up to 10 images, 5 videos and 7 subjects, with no more than 15 references per generation, for more consistent characters, products and styles. Reference-based video editing is also enhanced.
Fast action, continuous movement and complex camera moves render more steadily and smoothly, which makes large-scale scenes, chases and sweeping shots easier to handle.
Output reaches up to 4K resolution, and 10-bit HDR is supported at 1080p and 4K for a wider color range, smoother gradients and more room for color grading.
Sound is generated together with the picture, with high-quality stereo audio, more accurate lip sync and speech in multiple languages, accents and dialects.
Extend a generated clip one or more times to build a continuous sequence of up to 2 minutes, keeping the same characters and setting from shot to shot.
Key Kling 4.0 specifications at a glance.
| Specification | Kling 4.0 |
|---|---|
| Developer | Kling AI (Kuaishou Technology) |
| Versions | Kling 4.0 (also called Kling 4) and Kling 4.0 Flash |
| Single generation | Up to 30 seconds, generated natively |
| Video extension | Up to 2 minutes in total |
| Keyframes | Up to 10 |
| Omni references | Up to 15: 10 images, 5 videos and 7 subjects |
| Prompt length | Up to 8,000 tokens |
| Resolution | Up to 4K |
| HDR | 10-bit HDR at 1080p and 4K |
| Aspect ratios | Adds 21:9 ultra-wide |
| Audio | Dual-channel stereo with more accurate lip sync |
| Languages | Chinese, English, Japanese, Korean, Spanish and more, with accents and dialects |
Kling 4.0 comes in two versions. The full model aims for maximum realism and control, while Flash is tuned for speed and cost efficiency.
Full model for high-fidelity scenes
Lightweight version for high-frequency creation
Use native 30-second generation and keyframes to stage a complete scene with an opening, rising action and a resolved ending, then extend it into a longer sequence.
Keep products and characters consistent with Omni references, and deliver 4K HDR footage for launch pages, paid social campaigns and e-commerce listings.
Create explainers, character dialogue and localized versions with synchronized lip movement across multiple languages, accents and dialects.
Improved stability in fast motion, continuous action and complex camera moves suits chases, sports highlights and sweeping establishing shots.
Lock key shots with up to 10 keyframes to test composition, pacing and camera paths before committing to a full production.
Frame scenes in 21:9 ultra-wide and deliver 10-bit HDR footage that leaves room for professional color grading.
Creation workflow
Kling 4.0 rewards planning. Define the story beats first, anchor them with keyframes and references, and then choose the output format that suits where the video will be published.
Step 01
Divide the clip into beats: for example, seconds 0–10 establish the subject and setting, seconds 10–20 carry the main action, and seconds 20–30 deliver the climax or final frame. A clear structure helps the model pace motion and camera work.
Step 02
Upload keyframes for the moments that must look exactly right, then add image, video or subject references for characters, products and style. Kling 4.0 accepts up to 10 keyframes and up to 15 references.
Step 03
Describe the subjects, actions, camera movement, lighting, dialogue and sound. Prompts can run up to 8,000 tokens, so complex scenes can be described shot by shot.
Step 04
Select an aspect ratio, including 21:9 widescreen, and the resolution you need. Review the result, then extend the clip when the story needs more time, up to 2 minutes in total.
Kling 4.0 offers more control than earlier Kling models. These practices help turn that control into consistent, usable footage.
Place keyframes at the start and end of the clip to fix where the scene begins and lands, then add intermediate keyframes only where the story needs a specific moment.
Use one clean, well-lit reference per character or product so Omni Reference keeps each identity consistent instead of blending several looks.
Name the camera move for each part of the clip, such as a slow push-in, an orbit or a tracking shot, rather than giving one instruction for the whole 30 seconds.
Put spoken lines in quotation marks and state the speaker and the language or accent, so lip sync and voice match the right character.
List ambience, sound effects and music with their timing so the stereo audio supports the action instead of competing with it.
When extending a clip toward 2 minutes, keep character and style descriptions identical between segments and change only the action.
The table compares the published capabilities of Kling 4.0, Kling 3.0 and Seedance 2.5 and shows where each model fits best.
| Capability | Kling 4.0 | Kling 3.0 | Seedance 2.5 |
|---|---|---|---|
| Single generation | Native 30 seconds | 3–15 seconds | Up to 30 seconds |
| Story control | Up to 10 keyframes for timeline-level control | Multi-shot storytelling from a single prompt | First-frame control and 3D spatial pre-visualization for camera blocking |
| References | Up to 15: 10 images, 5 videos and 7 subjects | Kling 3.0 Omni: up to 7 images and 1 reference video | Up to 50: 30 images, 10 videos and 10 audio files |
| Resolution | Up to 4K, with 10-bit HDR at 1080p and 4K | 720p and 1080p, plus a native 4K mode | 720p up to native 4K |
| Audio | Stereo audio, more accurate lip sync, multiple languages, accents and dialects | Native audio with multilingual speech and accents | Native audio, with audio files accepted as references |
| Longer sequences | Video extension up to 2 minutes in total | Multiple shots within a single clip | Extend or edit an attached video |
| Best fit | Long, directed scenes that need keyframe precision, rich references and HDR delivery | Cinematic clips of up to 15 seconds for social media, ads and short scenes | Reference-heavy 30-second productions and 4K brand content |
Kling AI has released a major model every few months since June 2024. Kling 4.0 is the largest step in clip length, creative control and output quality.
| Version | Release | Highlights |
|---|---|---|
| Kling 1.0 | June 2024 | Public launch of Kling text-to-video and image-to-video generation |
| Kling 1.5 | September 2024 | 1080p high-definition output and improved motion quality |
| Kling 2.0 | April 2025 | Major gains in motion, prompt understanding and visual quality, plus multimodal video editing |
| Kling 2.5 Turbo | September 2025 | Faster, more cost-efficient generation with stronger prompt adherence |
| Kling 2.6 | December 2025 | First Kling model with native audio, including speech, sound effects and ambience |
| Kling 3.0 | February 2026 | 3–15 second clips, multi-shot storytelling and multilingual native audio |
| Kling 4.0 | 2026 | Native 30-second generation, 10 keyframes, 15 references, up to 4K 10-bit HDR and extension up to 2 minutes |
Each example is written for a full 30-second clip, with clear beats, camera direction and sound so the model can pace the scene from beginning to end.
0–10s: A matte black smartwatch rotates slowly on a wet stone pedestal, soft rim light, macro lens. 10–20s: The camera orbits as the screen lights up and raindrops slide off the glass. 20–30s: Pull back to a wide shot of a rain-soaked rooftop at dusk, the watch face glowing. Deep ambient synth and soft rain in stereo.
A warm café at night. A young woman in a green coat looks up from her notebook and says in English, "You came back." The man across from her smiles and replies in Spanish, "Nunca me fui del todo." Slow push-in, shallow depth of field, quiet café chatter and soft piano in the background.
Keyframes 1, 5 and 10 as anchors: a courier on a red bicycle enters a narrow alley at sunrise, weaves through a crowded market at midday and stops at a harbor gate at sunset. Keep the outfit and bicycle consistent. Tracking camera at handlebar height, 21:9 widescreen, rising drum rhythm.
0–10s: A rally car drifts through a muddy forest corner, mud spraying toward the lens, low tracking shot. 10–20s: A drone shot rises and follows the car over a crest as sunlight flares through the trees. 20–30s: The car crosses the finish line in slow motion while the crowd cheers. Roaring engine and crowd noise in stereo.
A presenter in a bright studio holds a pair of wireless earbuds and says in English, "Twelve hours of battery, one small case." She repeats the line in Japanese, then smiles at the camera. Medium shot, soft key light, clean studio ambience.
21:9 widescreen, 10-bit HDR. Dawn over a misty mountain valley. 0–10s: A slow aerial glide above the clouds. 10–20s: The camera descends toward a lone rider on a ridge. 20–30s: The rider stops as the sun breaks over the peaks. Rising orchestral music and gentle wind.
Answers about Kling 4.0 features, references, resolution, prompts and how it compares with other video models.
Kling 4.0 is a video generation model from Kling AI, Kuaishou's AI video platform. It generates native 30-second clips from text, images and multimodal references, supports up to 10 keyframes and 15 references, and adds stereo audio, more accurate lip sync and up to 4K resolution with 10-bit HDR output.
New accounts receive free credits to start, with no download needed. Kling 4.0 generations are paid with credits, and the pricing page lists current plans and credit packs.
Kling 4.0 is the full model, with native 30-second generation, 10 keyframes, 15 multimodal references and up to 4K 10-bit HDR output. Kling 4.0 Flash is designed for high-frequency creation, with faster generation and greater cost efficiency. Flash suits drafts and rapid iteration, while the full model suits final, high-fidelity scenes.
A single Kling 4.0 generation can be up to 30 seconds long, twice the 15-second limit of Kling 3.0. With video extension, a clip can be continued one or more times to build a sequence of up to 2 minutes in total.
Yes. Kling 4.0 supports resolutions up to 4K and 10-bit HDR output at 1080p and 4K. Compared with standard 8-bit video, 10-bit color produces smoother gradients and leaves more room for color grading.
Omni Reference accepts up to 10 images, 5 videos and 7 subjects in one generation, with a combined maximum of 15 references. Multi-keyframe control accepts up to 10 keyframes to guide composition and timing across the clip.
Omni Reference is the multimodal reference system in Kling 4.0. In one generation it accepts up to 10 images, 5 videos and 7 subjects, with no more than 15 references in total, to guide characters, products, style and motion. Compared with earlier versions, it offers richer reference options and more consistent results.
Yes. Kling AI lists enhanced video editing as part of the Omni Reference upgrade in Kling 4.0. Video references, up to 5 per generation, can guide how an existing scene is reworked, while the prompt describes the change.
Kling 4.0 adds a 21:9 ultra-wide aspect ratio for cinematic framing, expanding the widescreen, vertical and square formats used by earlier Kling models.
Kling 4.0 improves stability in high-speed motion, continuous action and complex camera movement. Large-scale scenes, chases and sweeping camera moves render more steadily and smoothly than in earlier versions.
Kling 4.0 generates high-quality stereo audio together with the video and improves lip-sync accuracy. Speech is supported in multiple languages, including Chinese, English, Japanese, Korean, Spanish, Portuguese, German, French and Hindi, along with a range of accents and dialects.
Kling 4.0 upgrades realism, control and story length:
Both models generate clips of up to 30 seconds with output up to 4K. Kling 4.0 stands out for keyframe-level timing control, 10-bit HDR output and extension to 2 minutes. Seedance 2.5 accepts a larger stack of up to 50 references, including audio files, which suits reference-heavy brand and product work.
Kling 4.0 accepts prompts of up to 8,000 tokens. The extra room allows a 30-second clip to be described shot by shot, including camera moves, dialogue and sound.
Structure the prompt around the timeline rather than a single moment:
Use keyframes and references for anything that must look exact, and use the text to direct motion and pacing.
Kling 4.0 is developed by Kling AI, the AI video generation platform of Kuaishou Technology. The Kling model family launched in June 2024 and has shipped major upgrades every few months, from Kling 1.0 to Kling 4.0.
