Kling AI drops version 4.0 with stereo audio, multilingual lip sync, and a lighter Flash variant
Kling AI's 4.0 video generator handles clips up to 30 seconds, accepts up to ten keyframe images and understands prompts of up to 8,000 tokens. In comparisons with Wan 3.0 and Seedance 2.5 it keeps pace without clearly winning, which may suggest progress in AI video is slowing.