KLING 4.0 · MODEL GUIDE
Kling 4.0 gives creators more ways to guide motion, references and story beats. Here is what those features mean when you are making an actual video.
Independent guide · Updated October 1, 2026
Kling 4.0 is a video generation model from Kling AI. You can describe a scene with text or use images and video references to guide the result. Its new controls focus on a common creative problem: getting the subject, movement and story to agree.
Model specifications: Kling AI’s official 4.0 release notes. Reviewed October 1, 2026. Model specifications and access on Kling4.tv are separate.
WHAT THE FEATURES DO FOR YOU
Keyframes
A keyframe is a picture of an important moment. Instead of only saying “the scene changes,” show the beginning, the turning point and the ending. Kling 4.0 lists support for up to 10 keyframe images.
Useful for: a product reveal, a character entrance or a planned sequence.
Keep each step visually compatible. The model still has to invent the movement between your images.
Omni references
A reference is guidance, not necessarily the opening frame. Images can describe a character or setting; video can communicate motion or pacing. The official model supports a combined reference budget of up to 15 assets.
Useful for: keeping a character, product or visual style recognizable.
The individual limits overlap: up to 10 images, 5 videos with 30 seconds combined, and 7 subjects. They are not 22 separate slots.
Motion & camera
A tracking shot follows a moving subject. A push-in moves closer. An orbit travels around the subject. Kling 4.0’s release focuses on more stable movement and better understanding of shot changes.
Useful for: action scenes, a product close-up or an emotional reveal.
Give the scene one clear action and a compatible camera path before adding complexity.
Native audio
The official model includes two-channel stereo and improved synchronization between speech and lip movement. Describe the speaker, spoken line and background sound separately so their roles are clear.
Useful for: dialogue, character scenes and atmospheric storytelling.
Review every spoken word and the timing. Language support is not a guarantee of perfect pronunciation or lip sync.
Longer scenes
Kling 4.0 lists 3–30 second clips in a single generation. More time can fit an entrance, a reaction and an ending in the same scene instead of forcing everything into a few seconds.
Useful for: a complete short moment or a continuous camera move.
Start with fewer beats. A longer duration also gives details more time to drift.
Lifelike detail
Faces, fabric, light and subtle gestures are central to the official demonstrations. A glance or a pause can carry a scene without a large amount of action.
Useful for: portraits, short drama and natural-looking lifestyle scenes.
Inspect hands, faces, background geometry, logos and text frame by frame before publishing.
Video editing
The official model describes targeted edits to expressions, movement, camera direction, backgrounds and style. A focused request gives the edit a clear boundary.
Useful for: trying a new background or refining one action in an existing clip.
The official editing workflow accepts up to 5 clips, including one primary clip, with a combined limit of 30 seconds. It is not connected in this preview.
Language & style
The release describes support for multiple languages, accents and visual styles, from natural-looking footage to animation. State the intended language, speaker and style clearly.
Useful for: localized dialogue, a character voice or a distinctive visual treatment.
Review pronunciation, lip sync, visible text and brand details. Multilingual support does not make every output publication-ready.
The full model offers more output choices. Flash is positioned for quicker iteration. Choose from the options actually available in the tool you are using.
| Specification | Kling 4.0 | Kling 4.0 Flash |
|---|---|---|
| Video length | 3–30 seconds | 3–20 seconds |
| Resolution | 720p, 1080p and 4K | 720p |
| Starting point | Text, images, first/last frames, keyframes and references | Text, first-frame image and Omni references |
| Story control | Up to 10 keyframe images | Check the specific Flash interface |
| Dynamic range | 8-bit SDR; 10-bit HDR announced as coming soon | 8-bit SDR |
| Access on Kling4.tv | Not enabled yet | Not enabled yet |
Full Kling 4.0 also lists 21:9, 16:9, 1:1, 9:16 and Auto aspect ratios. “Auto” follows the input where supported. These are official model specifications, not a promise that every API exposes each setting.
Model specifications: Kling AI’s official 4.0 release notes. Reviewed October 1, 2026. Model specifications and access on Kling4.tv are separate.
SET A USEFUL EXPECTATION
AI video can change a face, distort a hand, alter a label or misread a motion instruction. References guide the result; they do not lock every pixel. Treat the first generation as a draft.
Check identity, product shape, readable text, timing and audio before publishing. For exact typography or a regulated product claim, finish the result in your editing workflow.
10-bit HDR and video extension up to two minutes are marked “coming soon” in the official release notes. They are not presented as available features here.
Start with text to video and describe one clear scene.
Use image to video and describe what should move.
Prepare compatible keyframes and references for a tool that supports them.
Watch a demo, identify one feature and test a small variation.
No. Kling4.tv is an independent site for model information, tutorials and a planned Kling creation workspace. The model is developed by Kling AI, part of Kuaishou.
Kling 4.0 generation is not enabled on Kling4.tv yet. The initial connection is planned for KIE’s Kling 3.0 API. Generation is available only when the connected model and account services are enabled.
An allowance and usage limits have not been announced. Payments are not enabled for this release. We do not promise unlimited free generation.
The three examples shown here come from Kling AI’s official Kling 4.0 announcement. They demonstrate the model, not outputs from this website. Any suggested prompts are our own starting points, not the original demo prompts.
The official release lists 4K as an output option for the full model. Flash is listed at 720p. Availability, cost and input restrictions depend on the service exposing the model.
A reference communicates what something looks like or how it should move. A keyframe describes a specific moment in the planned sequence. Use references for consistency and keyframes for progression.
That has not been verified. The initial KIE integration plan uses Kling 3.0. The interface must follow the verified API schema for the chosen model rather than copying all settings from the Kling 4.0 announcement.
Write a scene or bring an image. Explore the studio and choose the workflow that fits.
Open the video studio
