
Kling 4.0 Launches With 30-Second Clips and 4K Output
Kuaishou's Kling 4.0 rolls out this month with single generations up to 30 seconds, 4K output, 10 keyframes and up to 15 multimodal references, as the company eyes a Hong Kong listing.
Kuaishou · Video · China AI
Kling AI is an AI video and image generator from Kuaishou. You type a prompt or drop in a photo, and it produces short cinematic clips with sound, motion control, and up to 4K output.

Kling AI is a creative studio for generating video and images from text, photos, or a mix of both. It comes from Kuaishou, the Chinese company behind one of the country's largest short-video apps. The platform handles the whole loop: you write a prompt or upload a reference image, pick a model and aspect ratio, and get a clip back in minutes. An image model sits alongside the video one, so you can generate a still and animate it without leaving the page.
The reason people pick it over a plain text-to-video tool is control. You can set a first and last frame and let the model fill in the camera work, copy a motion from a reference clip onto a character, or keep a person's face consistent across shots. Native audio is generated with the picture, which means lip movement, voices, and sound effects land in the same pass instead of getting stitched on later.
Where it gets awkward is precision. This is an AI video maker, not an editor. You don't scrub a timeline or fine-tune a cut frame by frame. Long, complex scenes still drift, and you'll spend credits on retries before a clip looks right. Go in expecting a fast way to get a usable shot, not a finished film.
A quick look at Kling AI: AI Image&Video Maker's pricing, supported platforms, and performance.
The users, tasks, and scenarios where this tool fits best.
The core feature turns a written description into a short clip, or animates a photo you upload. You set the aspect ratio, length, and resolution, then generate. The image-to-video path keeps the composition of your source picture, which is handy when you already have the exact frame you want. These two modes cover most day-to-day work.
Kling generates sound with the video instead of adding it afterward. Speech, sound effects, and ambient noise come out matched to the action, with lip movement that lines up on the speaking character. It supports several languages for dialogue in multi-person scenes. For a talking-head clip or a scene with a line of voice-over, this saves a separate audio step.
You can drive a character's movement from a reference video. It copies a specific pose, gesture, or expression onto your subject. This is the feature that gets shared most on social platforms, since it lets you reproduce a dance or a physical action without filming it yourself. It needs a clean reference clip to work well, and results vary with how clear the source motion is.
Instead of describing camera work in words, you set the opening and closing frames and let the model work out the movement in between. This gives you tighter control over where a shot starts and ends, which matters when you're cutting several clips together. It's the closest the platform gets to directing rather than just prompting.
Canvas is a project space where you organize your generations. You can write scripts, produce images and video, and edit them into a sequence in one place. It adds a layer of structure on top of one-off generation, so a project with several shots doesn't fall apart across loose files. Treat it as a light editing desk rather than a full video editor.
Alongside video, Kling runs an image generator for stills, and higher modes push video output up to 4K. That resolution matters if the clip needs to hold up on a large screen or survive cropping in an edit. The image model shares the same prompt workflow, so moving between a still and a moving shot feels consistent.
Kling AI has an open API through the KlingAI Open Platform, which lets developers call the video and image models from their own apps. You request access and pay per use, which suits teams building the generation into a product rather than using the website directly. It's a real integration path, not a marketing line.
Kling AI generates video and images from text or photos. You describe a scene or upload a picture, and it produces a short clip with sound, or a still image. People use it for social video, ad concepts, animating artwork, and building storyboards without a camera crew.
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