BEIJING — Chinese video artificial intelligence company Kling AI has unveiled a next-generation model capable of generating up to 30 seconds of video at once. The company is accelerating its push into the professional video production market, improving stability for fast motion and complex camera work while addressing the detailed requirements of video creators.
Kling AI said on the 16th that it had officially released Kling 4.0, its next-generation video generation model, the previous day. The model focuses on improving realism and control. In particular, it has been upgraded to stably render fast movements and complex camera motion, long considered a chronic limitation of AI video. The company said continuity of motion and framing can be maintained even in shots that follow a person or orbit around a subject.
The maximum length of a single generation has been extended to 30 seconds. Users can now produce scenes in which a character's movements and emotional shifts flow continuously, without splitting the scene into multiple generations. The model supports video output in up to 10-bit HDR, strengthening color and contrast rendering. Support for 4K resolution and a 21:9 ultrawide aspect ratio is planned.
Control features for creators have also been significantly expanded. Users can combine up to 15 reference materials — including images, video, characters and voice — to generate a desired result. A new function allows up to 10 key scenes to be designated in advance, giving fine-grained control over how a video unfolds. The company also plans to introduce a video extension feature capable of producing content up to two minutes long.
The technology is already being used on actual film sets. Kim Sung-su, who directed the film "Seoul Spring," recently presented "Worm Train," an AI short film in production using Kling AI, at the Busan International Film Festival. Kim said he used Kling 4.0 to render a complex scene in which passengers and a giant insect become entangled inside a train car.
Kling AI has secured more than 100 million users across 224 countries and territories and provides services to more than 50,000 companies. Annual revenue stands at $500 million (about 700 billion won). The company has recently formed partnerships with South Korean organizations including the Korea AI Content Creator Association and the Korea Artificial Intelligence Association, expanding its entry into the country's video production market.