Bollcoin, October 22 — The Kling 4.0 API service has officially launched and will gradually open to enterprise customers and developers worldwide. Kling 4.0 is the latest model released by Kling, capable of natively generating up to 30 seconds in a single pass, supporting long takes and continuous narrative with director-level thinking throughout. Kling 4.0 is now available simultaneously on iQIYI Nadou Pro, Higgsfield, LibTV, Magnific (Freepik), Meitu, OpenArt, OiiOii, TapNow, Tencent Design Miora, updream, and more.