SuperAPI AI Directory

Kling 4.0

Kling 4.0 (abbreviated as Kling4) is a video generation model launched by Kling AI. It supports text-to-video and image-to-video, can generate videos from 3 to 30 seconds, offers 720p, 1080p, and 4K resolution options, and supports aspect ratios up to 21:9. It features audio-visual synchronization, precise lip sync, and two-channel stereo, and can use up to 10 keyframes and 15 reference assets (10 images, 5 videos totaling 30 seconds, and 7 subjects) to control character, motion, camera, and story consistency. Prompts support up to 8000 tokens and can describe push-in, pull-out, pan, tracking, and orbit shots, and it is used in scenarios such as marketing ads, social media short videos, product demos, education and training, and film and television previsualization.

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About this tool

Kling 4.0 is a video generation model launched by Kling AI, with the page using Kling4 (KLING4) as its abbreviation. Centered on text- and image-to-video creation workflows, it provides the ability to complete video generation within a single creative workspace.

Purpose and Positioning Kling 4.0 can be used to generate videos from text descriptions, and can also use images and video references to guide results. Its control capabilities mainly solve a common creative problem: keeping the subject, motion, and story consistent. Applicable scenarios include short videos, product ads, cinematic scenes, marketing ads and ad variations, social media vertical short films, product demos and landing page videos, education and training content, film and television previsualization, and animation and creative prototypes.

Main Capabilities

  • Text-to-video and image-to-video: You can directly describe a scene, one main action, and camera movement without providing a source image; you can also animate portraits, product photos, or illustrations.
  • Synchronized generation of visuals and sound: Supports two-channel stereo and provides precise lip sync for dialogue, singing, and expressive performances.
  • Multiple resolutions and aspect ratios: Choose 720p, 1080p, or 4K, with support for compositions up to 21:9; the page mentions that 10-bit HDR for 1080p and 4K is coming soon.
  • Reference control: Use up to 15 references in a single generation, including up to 10 images, up to 5 videos totaling 30 seconds, and up to 7 subjects; supports motion, camera, storyboard, grid, white model, or depth references.
  • Keyframes: Define up to 10 keyframes to guide character states, scene changes, and story beats, with motion connecting each moment.
  • Prompts: You can start from a brief idea or describe camera movement, lighting, action, and sound in detail; prompts can contain up to 8000 tokens.
  • Camera control: Can guide push-in, pull-out, pan, tracking, and orbit shots, and smoothly change shot sizes and scene transitions.
  • Consistency: Can preserve recognizable characters, appearance, and audio-visual details across changes in viewpoint and action; you can also use reference videos to control pacing and composition, then add your own images to adapt products or characters.
  • Editing and replacement: Can replace elements, characters, or scenes, remove background people, or change the visual style while preserving the desired parts.
  • Multilingual: Supports dialogue in Chinese, English, Japanese, Korean, Spanish, Portuguese, German, French, and Hindi, and can select some Chinese dialects and English accents; it can also bring multilingual text, emojis, and logos into dynamic scenes.
  • Fast option: Flash can be used for faster frequent creation and iteration on reference images, motion, and scene ideas.

Video Duration and Style Can generate videos from 3 to 30 seconds, making it easy to present continuous action, longer shots, and complete emotional passages. Scenes can be shaped into vlogs, realistic documentaries, clay animation, glitch art, felt art, or 3D cyberpunk videos.

How to Use

  1. Choose a starting point: write a scene description, or upload an image you have the right to use.
  2. Set up the model: check the actual model version, aspect ratio, and duration.
  3. Review the results: watch for unwanted cuts, detail changes, and inconsistent motion.
  4. Refine item by item: adjust the prompt or source image and compare the next version.

The page description also mentions: the online studio currently offers Kling 3.0 and other integrated models, while Kling 4.0 is not in the current generation catalog; available controls and credit estimates are shown according to the selected model. Examples are labeled with their model and source; Kling 4.0 showcases and Kling 3.0 examples are independent of each other, and examples do not mean that the model is available in this studio. Output resolution depends on the selected model: here Kling 3.0 supports 720p and 1080p, some Seedance models offer 4K, and the generator settings should prevail. Video models include Kling 3.0, Seedance 2.5, Seedance 2.5 Lite, Seedance 2.0 Mini, Pro, and Fast, as well as Veo 3.1 fast; image models include GPT Image 2, Nano Banana 2, and Nano Banana Pro.

Credits and Subscriptions Submitting a generation task consumes credits, and the amount depends on the selected model, duration, output quality, aspect ratio, and whether features such as audio are enabled; longer or more advanced generations usually consume more credits. Subscription plans and one-time credit packs are offered: subscriptions are suitable for continuous production and include more credits and plan benefits; one-time credit packs are suitable for a small top-up of videos or testing campaign ideas. Subscription credits generally follow the subscription period, while one-time credit packs may have their own expiration dates, both shown at checkout and in the account balance. If a task fails due to platform service issues, model execution errors, or system problems, credits are usually automatically returned or compensated; if a task completes successfully but the creative result does not meet expectations, it is usually considered a completed generation. Renewal can be canceled from the billing or subscription management page, and after cancellation the current paid benefits are usually retained until the end of the billing period; upgrades can be made when more credits or higher throughput are needed. Prorated refunds, taxes, and payment rules may vary by provider and region.

Plan and Credits Overview The page lists Mini, higher tiers, and one-time credit packs, corresponding to approximate numbers of "high-quality videos" and "high-quality images (GPT Image 2)," for example Mini is about 28 high-quality videos and about 200 high-quality images; the higher tiers respectively provide 6,600, 14,400, and 26,000 credits, and are labeled with the credit bonus percentage relative to Mini, fast generation queue, commercial license, and other benefits; one-time credit packs such as Starter, Standard, Professional, and Premium are also offered with corresponding credits and output estimates.

Limitations and Notes

  • The page clearly states that Kling 4.0 is not in the current generation catalog, and the actual available models and options are subject to the studio.
  • Example showcases are unrelated to the actual availability of the model; resolution, model, and feature options vary by model, and all model options should not be assumed to be the same.
  • Reference describes the appearance or manner of motion of things; keyframes describe specific moments in a planned sequence. Use reference for consistency and keyframes for progression.
  • For commercial use, confirm whether the plan includes a commercial license and review the terms of service; authorization for uploaded images, likenesses, music, and brand materials is the user's responsibility.
  • The page does not provide specific price amounts, free quota details, refund guarantees, or generation speed promises; the relevant facts are not yet provided.