Kling 4.0 AI

Kling 4.0 AI (kling4pro.com) is a web-based AI video generator that turns text prompts, still images and audio into short, high-quality video clips directly in the browser, with nothing to install. It is an independent third-party service and is not the official Kuaishou or Kling product. The core workflows are text-to-video, where you describe a scene and the model renders it; image-to-video, where one or more reference images are animated; and audio-driven lip sync, where a voice track drives a character's mouth movements. You can supply up to nine reference images to keep characters, products or styles consistent, and use first-frame and last-frame control to define exactly how a shot starts and ends. Clips can run up to roughly thirty seconds and are exported in 16:9, 9:16 or 1:1 aspect ratios, so the same idea can be produced for YouTube, TikTok, Reels or square social posts. Output goes up to 4K resolution and carries no watermark. Beyond generation, the platform includes video editing tools and a prompt agent that helps rewrite rough ideas into detailed prompts that models follow more reliably. In addition to its own Kling 4.0 workflow, the site gives access to other popular models in one place, including Kling 2.x and 3.0, Google Veo 3.1, Seedance and Hailuo, plus several image generation models, which makes it easy to compare results without juggling multiple accounts. Typical users are content creators, marketers, small businesses, educators and indie filmmakers who need product demos, ads, explainer clips, storyboards or social content quickly. New accounts receive free credits to try the tools, and paid plans start from $16 per month for heavier use.

Getting started is simple: sign up with an email address, pick a model, enter a prompt or upload a reference image or audio clip, choose the aspect ratio and duration, and generate. Finished videos can be downloaded as MP4 files for editing or publishing. Credits are shared across the available models, so one account covers both video and image generation.