Kling 4.0 Officially Announced: 30-Second AI Video, 4K HDR and Advanced Control

The future of artificial intelligence generated video is almost here.

Kuaishou has made it public that it has developed Kling 4.0, its new advanced AI video generation technology. The full version of the model will be out in October 2026, while the quick version Kling 4.0 Flash has already been tested to some extent.

Kling 4.0 has been upgraded in several important areas compared to its predecessors: it has 30-second-long video generation and can produce 4K videos, 1080p 10-bit HDR, provides control over multiple keyframes and refines ability to reference, create smooth motions and improve sound synchronization.

This technology will tackle some major difficulties creators encounter when creating artificial intelligence videos, including video durations, characters’ naturalness, movements’ stability and more.

Kling 4.0 may be a breakthrough innovation for filmmakers, marketers, animation designers and social media developers.

Kling 4.0 Release Date

It is expected that Kling 4.0 will be out in October 2026.

Even though Kuaishou did not reveal the official start date, Kling 4.0 Flash is already running limited pre-testing, letting customers have a chance to try some features of the new system.

Creators should wait for further details on price and launch date in October.

For those wondering when Kling 4.0 will be released, the announcement makes it clear:

Kling 4.0 will come out in October 2026.

What's New in Kling 4.0?

Kling 4.0 is not simply a newer version of the earlier model. The latest version is centered around longer video creation and improved creative control.

The main capabilities that have been announced include:

l Generation of videos of up to 30 seconds,

l Video output of 4K resolution,

l 1080p 10bit HDR video output,

l Capability of up to 10 keyframes,

l Omni Reference capability,

l Advancement in complex motion,

l Improvement in camera movement,

l Advancements in audio generation,

l Better lip syncing,

l Video extension capabilities,

l Kling 4.0 Flash model.

The most important feature is not any individual specification, but the combination of capabilities. A 30 seconds limit on video production becomes much more valuable in case the model has the ability to keep references, follow keyframes and work with complex camera movement.

This is where Kling 4.0 becomes quite interesting.

30-Second AI Video Generation

Kling 4.0 brings one of the most impressive advancements in the expansion of the generation time frame to nearly half a minute. It might seem like a mere extension of time, however, its effects may be outstanding.

The vast majority of AI models so far have concentrated on creating very short clips.

Next, the creator would generate another clip and would edit the entire sequence together using the editing software.

The problem is continuity issues.

The character's appearance might change from one clip to another.

The environment may vary.

The lighting changes.

Some objects may disappear and change shape.

The shake and panning of the camera may differ.

However, when the clip is longer, the model has much more chance for visual continuity.

A 30-second clip consists of a complete action and not of a single picture.

The overall timeline could be as follows:

0–5 sec – environment.

5–12 sec – character.

12–20 sec – action.

20–30 sec – finish.

This approach is more similar to regular filmmaking and helps the creators to stop working with individual clips.

Kling 4.0 Keyframes Could Change AI Video Creation

Another significant aspect is the ability to use up to 10 keyframes.

Keyframes enable filmmakers to pinpoint significant visual moments in a sequence.

For example, let’s look at a 30-second commercial.

In the first frame, a product is placed on the table.

The second keyframe shows a person picking up a product, and another keyframe focuses on the close-up view.

A later keyframe shows a product in a different place, and the last keyframe shows the product in all its glory.

After this, the AI will create all transitions between those important visual scenes.

This is different from sticking to one text prompt only.

Instead, it offers creators something like a story board.

Importance of Keyframes

Keyframes are especially important for:

l short AI films

l advertising

l animating characters

l music videos

l e-commerce videos

l before-and-after effects

l scene transitions

l stories for social media

The more complicated the movie becomes, the more needed is this degree of control.

Instead of asking the AI to create every scene one by one, creators are able to select appropriate keyframes and let the model to fill in the gaps.

Kling 4.0 Omni Reference and Character Consistency

In the area of generative videos, maintaining consistency is a true problem, especially when it comes to creating characters. It may happen that a character might appear to be perfect in one version but turns out to be different in another one. The same problem can arise for the products:

a bottle may be formed differently, or a product can be completely of another color compared to the first rendered version. It is a problem for any professional studio dealing with such productions.

The latest version of Kling 4.0 gives much more control over visuals by providing creators with more visual references to work with. By engaging a wide range of visual reminders that might include such parameters as character, clothing, product design, environment, light, style, and props it is possible to create more consistent images. Therefore, a creator who is working on a series of 20 episodes will be able to maintain the required level of consistency across different episodes.

Kling 4.0 4K and 10-Bit HDR

Kling 4.0 presents higher quality output with its support for both 4K and 1080p 10-bit HDR.

While higher resolution can impact the commercial making process positively, it is the HDR component that is of greater interest.

10-bit video holds more information regarding the transitions of colors and shades than its standard 8-bit counterpart.

For professionals engaged in the production of promotional materials, the tool can really open the door to more possibilities during the post-production stage.

Possible applications include the following:

l Brand advertising

l Commercials

l Social media advertising

l Music videos

l Short films

l Ecommerce videos

Creators must bear in mind that resolution is not everything that affects the quality of the produced video.

Even a 4K video may fail to provide appropriate motion, consistent textures or believable characters.

The actual test for Kling 4.0 will be if it manages to keep all the mentioned components stable during a 20 or 30-second video sequence.

Kling 4.0 Flash: A Faster Option for Creators

Kling 4.0 has also been outfitted with a new model known as Kling 4.0 Flash.

Speed has reigned supreme in the world of AI video making because virtually no one hits the sweet spot when trying to produce videos the first time.

A typical process includes a multitude of attempts:

l Testing a character

l Modifying the camera

l Changing the light

l Trying out a different movement

l Changing the prompt

l Changing the reference picture

l Generating

The faster model can make this job much easier.

Content contributors can use Kling 4.0 Flash for their explorations and Kling 4.0 for final production.

An example of a process could look like:

Flash → Explore → Choose → Process → Kling 4.0 → Final stage

This will minimize the time spent on developing those ideas and resources spent on creating a final version from those which were not realized.

The price and the limitations of Kling 4.0 Flash will become interesting once the model is accessible to many users.

 

Kling 4.0 vs Seedance 2.5

Kling 4.0 is launched amidst a fascinating development in the development of artificial intelligence video generation technology.

Another significant artificial intelligence video generator is Seedance 2.5.

Both models are getting increasingly sophisticated in terms of producing longer videos and using the references from different sources and formats.

However, the main question for video developers is not just which one uploads a video of better quality. The question should be:Which model grants enough authority to the creator?

Kling 4.0 suggests:

l 30 second long videos

l 4K quality video production

l 10 bit HDR (High-Dynamic Range)

l Keyframe control

l Access to a variety of references

l Advanced camera movement features

l High-quality sound production

l Synchronization of lip movements.

Kling appears to be particularly appealing for those creators who want to gain maximum freedom in designing the scene.

Seedance 2.5 and other models are also successfully breaking down the barriers in video generation.

The competition between the models should further stimulate the progress of the whole industry.

As for the users of such technologies, they will definitely gain more advanced tools.

Can Kling 4.0 Generate 120-Second Videos?

Kling 4.0's claim of being able to generate videos in 120 seconds has gained a lot of media attention.

Various reports have mentioned different capabilities of the model, focusing primarily on its extended video generation abilities. The maximum duration in case of Kling 4.0 is frequently assumed to equal two minutes.

However, it is worth noting that there is a significant difference between the two concepts.

The actual confirmed specification is to generate videos up to 30 seconds long as a native feature.

This does not mean just producing a 30-second video and then extending it using other tools.

Thus, it would not be right to call Kling 4.0 the first 120-second one-shot video generator since it has not been confirmed yet.

Now, the better way to describe this situation would be to conclude that the confirmed native generation capability is 30 seconds long, while the possibility of longer video production still remains hypothetical.

Kling 4.0 for AI Filmmaking

Kling 4.0 may be able to create huge advances in filmmaking with the assistance of Artificial Intelligence technology. While in traditional AI video making, the first step is to generate separate shots and assemble them later, this process takes quite some time. The more shots are generated, the more chances for inconsistency arise. To avoid some problems, it makes sense to employ prolonged video generation, as well as help the process with use of keyframes and references. For example, a director may establish the following:

Start: a character walks in a dark room.

Middle: she finds a certain item.

Action: the camera follows this character.

Final: the character looks out of the window.

Instead of making four completely different videos, the video maker can create references and use keyframes to implement one continuous video.

As a result, making videos would become more like a directing process rather than video prompting.

Kling 4.0 for Advertising and E-Commerce

Another important application of commercial video is that it provides visual consistency for brands. In this situation, if an AI-created product changes during the course of the advertisement, the video becomes almost unusable. Using reference-based generation could help with this. This refers to the fact that an online shop might share with the AI the following:

l Images of the product

l Packaging information

l Colors of the brand

l Lifestyle images

l Background images

In this way, the technology can generate a more consistent and cohesive advertisement.

The technology of generating a 30-second video combined with reference control and keyframes is especially effective.

Kling 4.0 for Social Media Creators

Another apparent application of this approach is the creation of short-form content.

Platforms such as TikTok, Instagram, and YouTube Shorts benefit from clever and fast storytelling.

A 30-second video from an AI fits well in this particular format.

Creators do not have to produce three independent ten-second videos but may create one 30-second one instead.

This way, they can streamline narrative processes while reducing the number of edits required.

Moreover, Kling 4.0 Flash can prove useful for creators who need to create numerous concepts quickly.

In this case, creators may generate a variety of ideas using the faster model and make use of the comprehensive Kling 4.0 model for one particular scene.

What Creators Should Test After Kling 4.0 Launches

Promotional videos can make an AI technology appear quite effective.

Independent testing has more value than a promotional video.

Once Kling 4.0 is available, creators should test various aspects.

1. Character Consistency

Use one character for close-up shots, long-distance shots, and various actions.

2. Product Consistency

Use an existing product reference to create various scenes and check components such as logos, character shape, colors, etc.

3. Long-Sequence Stability

Have a long action of 20-30 seconds and check for sequences of 5 seconds at the end.

4. Keyframe Accuracy

Create some keyframes and track how the AI model accomplishes the complete visual composition.

5. Camera Movement

Use the AI technology to generate more complex camera movements.

6. Lip Synchronization and Sound

Check dialogue and facial movements for synchronization with surrounding sounds.

What We Still Don't Know About Kling 4.0

Although the announcement has been made, there are still questions to be answered.

Pricing

The completed pricing model is expected to be quite crucial for professional creators.

Creating 30 seconds of video in high resolution requires more resources compared to creating 10-second videos.

API Access

Developers and companies in the production field will also need to understand how fast Kling 4.0 will be available through API.In large-scale content production API access is as important as the web interface.

Long-video capabilities

The precise use of long videos is still an area to keep an eye on.If Kling will allow creators to organize a story over 2 minutes, it will have a much greater impact on AI filmmaking industry.

Real-world reliability

To finish, let’s ask the most important question:

How stable is the model over time? It's simple to create one nice frame.Creating 30 seconds of coherent activity is much more complex.

Final Thoughts

Kling 4.0 has come out at a time when AI video creation has moved to a new stage. The competition in the industry is no longer limited to the video quality. The next competition is based on control, consistency, and production efficiency.

Kling 4.0 has successfully combined numerous significant features:

l The ability to create a video up to 30 seconds

l 4K result

l 1080p 10-bit HDR support

l Up to 10 keyframes

l Extended Omni Reference

l Advanced filming and camera control capabilities

l Enhanced audio and lip synchronization

l Kling 4.0 Flash for faster creation

The complete launch is set for October 2026 but, some parameters are already limited or need further verification.

The well-known 120-second capability is to be taken into consideration but, the producers have to understand the difference between certified native development and extended video workflows until final specifications are available. The most important news is that video AI becomes more controlled. The creators face a shift from the task: “Make something cool.” to the requirement:“Make this one specific scene, this specific character on this exact moment, from that camera, and stick to all requirements.”