Kling 4.0 AI Video Generator is a multi-model video platform that creates AI videos from text and images in the browser. It supports Kling 4.0, which generates clips up to 30 seconds long at up to 4K resolution with up to 10 keyframes, alongside Kling 4.0 Flash, Seedance, and Wan models, so you can pick the engine that fits the shot. You can start from a written prompt or an image, add reference images, and generate clips with audio, making it useful for short-form content, ads, storyboards, and social videos. Eligible accounts receive daily free credits, and paid plans start at $16 per month for 800 credits, rising to $32 and $80 per month for larger allowances, with one-time credit packs also available. Commercial use requires a paid subscription. This is an independent third-party platform built around these models, not the official Kling site, but as a workspace it gathers several current video models behind one credit balance and one workflow. For creators who compare models or produce video regularly, that single balance is the main convenience.