Kling 4.0 Flash test: lip sync holds as singing speeds up

Shami @ShamiWeb3Originally posted 2026.09.29

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Kling 4.0 lands in October. Flash is already out, sharper frames, cleaner motion, expressions that actually hold. I ran Flash on a one-take booth performance, and the mouth sync stayed locked while the delivery sped up. If this is the preview, October is going to be loud.