Kuaishou Kling AI announced last night that Kling 4.0 has officially been fully launched on klingai.com. This generation of the model makes major leaps in visual realism, creative control, and narrative completeness, with concentrated breakthroughs in audiovisual performance, multi-keyframes, lip matching, text generation, and creative replication.
Specifically, Kling 4.0 polishes large-scale camera movements such as fast motion, continuous action, tracking, and orbiting shots to be steadier and smoother, reaching more professional finished-film standards; it also supports high-quality audio and dual-channel stereo, with sound depth and layering closer to sync sound, creating an "immersive" listening experience. Character lip-matching precision has also been further tightened, with voice, dialogue, and performance coordinating more naturally, giving performances a more "lifelike" quality. In terms of format, it supports 4K and 1080p 10-bit HDR output, with smoother light-to-dark transitions, and is compatible with the 21:9 ultra-wide aspect ratio—richer color layering means short-video creation is quietly approaching cinematic-grade thresholds.
30-Second Single Clips + Continuation Shooting Up to 2 Minutes, Plus MCP/CLI Integration
More crucial are duration and freedom. The new version supports generating videos up to 30 seconds in a single run, capable of long takes and continuous narrative, letting emotion, action, and camera grow naturally along one storyline; with multiple continuation shots, the total can extend to 2 minutes. Input has also been relaxed: up to 10 images, 5 video clips, and 7 subjects can be combined in the same task, reducing repeated tweaking; the prompt limit has been raised to 8000 tokens, and it will rewrite and polish prompts, introducing "director thinking" to help users make judgments. Visual styles cover cinematic, anime, fantasy, pixel, felt, and more; languages include Chinese, English, French, German, Japanese, Korean, Spanish, Portuguese, Hindi, and other multilingual options, and it can even generate accents and dialects such as Beijing, Taiwan, Northeastern, Sichuan, and Cantonese.
As for supporting infrastructure, Kling 4.0 has been integrated with MCP/CLI to reach more scenarios, the creation page has been upgraded in sync, and the API for enterprises and developers will open soon—plugging generation capabilities directly into workflows, a step clearly aimed at being a "tool" rather than a "toy".