Kling AI drops version 4.0 with stereo audio, multilingual lip sync, and a lighter Flash variant

AI video generator Kling AI has released version 4.0 with higher resolution, more precise controls, and a fast Flash variant that the company says should close the gap between AI-generated and professional video. Users can now generate up to 30 seconds of video in a single pass, and the system accepts up to ten keyframe images as input to pin down scene transitions, character states, and story beats.

Prompt comprehension has been expanded to 8,000 tokens. The upgraded "Omni Reference" system accepts up to 15 reference assets in a single generation, according to Kling AI, including up to 10 images, 5 videos with a combined maximum of 30 seconds, and 7 elements. Storyboards, wireframes, image grids, white-model videos, and depth-map…