Kling 4.0 AI

Kling 4.0 AI (kling4pro.com) is a browser-based AI video generator. Create clips from a text prompt, animate images (up to 9 reference images with first/last frame control), or drive a character with audio for lip sync, then refine results with built-in video editing and a prompt-writing agent. Clips run up to about 30 seconds in 16:9, 9:16 or 1:1, with 4K, watermark-free MP4 export. The same workspace also offers Kling 2.x/3.0, Veo 3.1, Seedance and Hailuo video models plus several image models. New accounts get free credits; paid plans start at $16/month. Kling 4.0 AI is an independent third-party service and is not the official Kuaishou/Kling website.