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Kling 4.0 AI Video Generator Online

Create a product demo, social video, or short film scene with Kling 4.0 on AI Ease. Describe what you want to see and hear. Add images or video clips to guide the look and movement. Generate up to 30 seconds in one pass, with dialogue, ambient sound, and sound effects built into the video.

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How to Use Kling 4.0 on AI Ease

  • 1

    Describe Your Video

    Describe the subject, setting, and action. If you add a photo or clip, tell the model what to use from it, such as a jacket’s color or the speed of a camera move.

  • 2

    Choose Your Video Settings

    Set your duration and aspect ratio using the available options. For example, use a vertical frame for a product demo designed for mobile viewing or a horizontal frame for a scene with two people side by side.

  • 3

    Generate and Download

    Click Generate, preview your video, and download it when you’re happy with the result.

What You Can Do with Kling 4.0

Give an action time to unfold, show the model what to draw from your references, and describe the sounds that belong in the scene. Kling 4.0 brings these choices into the same generation, so you can plan the action, sound, and framing around the video you want to make.

woman with headphones around her neck leaning on a seaside railing
  • Generate Videos Up to 30 Seconds

    Generate up to 30 seconds of video in one pass with Kling 4.0. The extra time gives you room to introduce the subject, show an action, and let the result register. For a furniture demo, open on a folded chair, show how the legs lock into place, and finish on the chair set up beside a table. In a short film, use a longer take to follow a character down a hallway and hold on their reaction when a door opens. Describe what happens at the beginning, middle, and end, and specify how you want the final shot to look.

  • Combine Up to 15 Reference Assets

    Use photos to establish what should appear in the scene and video clips to show how it should move. Kling 4.0 supports up to 15 reference assets in a single generation, including up to 10 images and 5 videos. When planning a fashion launch, you could upload front and side views of a coat, a photo of the location, and a clip that shows the camera moving alongside the model. Tell Kling what to draw from each reference, such as the coat’s silhouette or the speed of the tracking shot. Reuse the key images for related clips to help maintain a recognizable look across the campaign.

  • Create Videos with Native Audio

    Generate dialogue, ambient sound, and sound effects alongside the visuals. Kling 4.0 can use sound to draw attention to an action or give viewers a sense of the setting. In a bike repair scene, you might ask for the click of a ratchet, a mechanic explaining the next step, and traffic humming outside the shop. Specify who speaks, what they say, and when the important sounds should come in. When the speaker is on camera, lip sync helps match their mouth movements to their words. You can hear how the delivery and sound effects work with the action in the same preview.

  • Flexible Aspect Ratios for Multiple Platforms

    Compose the shot around where your video will appear. Use 9:16 for a vertical demo that keeps a presenter and product in view on a phone. Choose 16:9 to show a wider workspace or follow two people moving through a scene. A square 1:1 frame works well for a centered product reveal or a close-up in a social feed. When a campaign runs in more than one placement, rethink the composition for each version. A wide shot might show a runner and the trail ahead, while a vertical version can stay closer to their stride and leave space near the top for a headline you’ll add later.

Best Uses for the Kling 4.0 AI Video Generator

Use Kling 4.0 to show what a product does, develop a scene from a script, or make an abstract lesson easier to follow. The right starting point depends on what you have on hand. A prompt can establish the action, a photo can guide the subject’s look, and a video reference can help set the pace or camera movement.

  • product social ad

    Show Products in Everyday Use

    Help shoppers picture how a product fits into their day. Start with product photos that show the shape, finish, and visible details, then describe a simple action that highlights the feature you want to demonstrate. For a travel mug, show someone sliding it into a car cup holder, opening the lid, and taking a sip. For a desk lamp, show the arm being adjusted and the light falling across a notebook. These clips can support product listings, storefronts, and seasonal collections. Before publishing, compare the clip with the actual item to make sure it accurately shows the design and how the product works.

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    Develop Creative for Paid Video Ads

    Build ad concepts around one message at a time. A skincare brand could try a creator-style morning routine for one version and a close-up of the product texture for another. A home goods team could lead with the finished room in one ad and open with the product in use in the next. Use the same product references across versions so the team can focus on how the hook, pacing, or spoken line changes the message. Review the concepts side by side, then select the versions to develop for paid social placements, retargeting, or a seasonal campaign. For a retargeting ad, open with a detail shoppers may still have questions about, such as product size or texture.

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    Build a Recurring Social Video Series

    Give followers a format they can recognize from one post to the next. A food creator could make a weekly series around a recurring character discovering a new ingredient, while a bookstore could open each recommendation with the same cozy reading nook. Reuse the visual references that define the series, then change the action or setting to give each post its own story. Plan your Reel, TikTok, or Short around one moment, such as a reveal or a visual joke. A familiar opening gives you a starting point each week and leaves space to try new ideas within the series.

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    Create Scenes for Short Films and Dramas

    Turn a moment from your script into a scene viewers can watch. Start with the action that changes the story, such as a character recognizing an old friend across a station platform. Describe where the camera begins, when the character notices the other person, and how long the camera should hold on the reaction. Include a line of dialogue, a station announcement, or the sound of an arriving train if it helps establish the mood. Use the resulting clip as a teaser or develop related scenes for a larger project. For recurring characters, reuse the same references to guide their look across clips.

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    Preview Shots Before a Production

    Show a director, client, or crew how a planned shot might play before the shoot. Add storyboard frames or location photos as visual references and describe where the camera starts and ends. For a restaurant commercial, test a slow move through the dining room that ends at a table by the window. Then try a second version that starts at the table and reveals the room in reverse. Bring both clips into a planning meeting to discuss what the audience should see first, where people and props should sit, and what the crew would need to capture the preferred shot on set.

  • a education icon

    Make Lessons Easier to Follow

    Use a short video to show a process students might struggle to picture from a slide. A science teacher could animate how water moves through a watershed, while a training team could illustrate what a helpful greeting sounds like at a service desk. Focus each clip on one idea and use short narration or dialogue to draw attention to the action. Break a longer topic into several clips so learners can pause between steps or revisit a specific example. Review the generated sequence for factual accuracy before adding it to a lesson, onboarding module, or presentation, especially when it illustrates a procedure students are expected to repeat.

Frequently Asked Questions

Have more questions? You can email service@aiease.ai, and we'll be happy to help you.

  • What is Kling 4.0?

    Kling 4.0 is an AI video generation model from Kling AI. It creates clips from text prompts, images, and video references. It supports up to 30 seconds per generation and can create audio alongside the visuals.

  • What’s the difference between Kling 4.0 and Kling 3.0?

    Kling 4.0 supports up to 30 seconds per generation, compared with up to 15 seconds for Kling 3.0. Kling 4.0 also supports up to 15 combined reference assets.

  • Can I create a video from text alone?

    Yes. Describe the subject, setting, and action in a text prompt. Add details about the camera, lighting, or sound when they matter to the scene. Images and videos are optional for text-to-video generation.

  • Can I turn a still image into a video with Kling 4.0?

    Yes. Start with a still image and describe what should move. For example, you can ask for wind to lift a character’s hair, for a product to rotate, or for the camera to move closer to the subject.

  • Can Kling 4.0 generate a 30-second video in one pass?

    Yes. Kling 4.0 supports up to 30 seconds in a single generation. The available durations on AI Ease depend on the settings for your selected mode.

  • Can I use the same character in several clips?

    Yes. Reuse a clear reference image and describe which features should stay consistent, such as hairstyle, wardrobe, and accessories. Review each clip before putting the sequence together.

  • Can Kling 4.0 generate dialogue and sound effects?

    Yes. Native audio can generate dialogue, background ambience, and sound effects with the visuals. For a conversation, name each speaker, write their lines, and describe the sounds you want around them.

  • What aspect ratios does Kling 4.0 support?

    The Kling 4.0 model supports 16:9, 9:16, 1:1, and 21:9. Check the aspect ratio settings for your selected mode on AI Ease to see which options are available.

  • What should I include in a Kling 4.0 prompt?

    Start with who or what appears and what happens. For a longer scene, describe the key moments in order and say where the camera should end. If you use references, explain what each one should guide.

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