Kling 4.0 is an AI-powered video studio that turns text or images into polished 1080p videos using multi-shot storyboarding, coherent camera motion, and character consistency. It supports up to roughly 15-second clips, native-level on-screen text rendering, and automated multilingual dialogue with lip sync. Creators upload images or enter prompts, configure aspect ratio and quality, then generate, preview, and download MP4 videos. The service runs in-browser and operates on a credit-based subscription model with free starter credits and paid tiers.