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

The DecoderOct 19, 2026Oct 19, 2026, 1:36 PM AST

AI video generators turn a written prompt, or a set of reference images, into moving footage by predicting frames the way language models predict words. Kling 4.0 can produce clips up to 30 seconds in one pass, accepts up to ten keyframe images and adds stereo audio plus lip sync in more than ten languages. A cheaper Flash version tops out at 720p and 20 seconds.

Summary written with AI by HowTechMoves, based on reporting by The Decoder.

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