Kling4 is an independent AI video generation studio that brings 18 video models from 7 brands together in a single picker — including the Kling 3 series, Hailuo, Seedance and more. Instead of juggling separate subscriptions and interfaces, creators type a text prompt or upload an image, choose the model that fits the shot, set aspect ratio (21:9, 16:9, 9:16, 1:1), resolution and clip length, and generate. The studio covers text-to-video and image-to-video workflows, with sample clips and use-case guides for fitness demos, product close-ups, travel vlogs, multilingual lessons and more. New accounts get free credits to try the studio models; downloads, 1080p+ output and the full model range open up on paid plans (Basic and above, 4K on Pro/Business). Kling4 is not affiliated with Kuaishou or Kling AI — model names in the picker identify which model renders a clip, not a partnership.