Kling 4.0 adds multi-keyframe control for 30-second videos
Kling has published a guide to Kling 4.0's Multiple Keyframes feature, which lets users pin up to 10 images along a video of up to 30 seconds so longer clips follow a planned sequence.
Kling published a guide to Multiple Keyframes, a control feature in its Kling 4.0 video model. Older start-and-end-frame workflows let users fix only how a clip begins and ends. With this feature, users can set up to 10 keyframe images in a single generation. Each one marks a visual state the video must reach, such as a character entrance, a product reveal or a scene change. The model then generates the motion and transitions between them.
The feature is aimed at longer outputs. According to Kling, Kling 4.0 natively generates videos from 3 to 30 seconds. The company says that extra length makes it more likely that events happen too early, too late or out of order when the model works from a single prompt. Its sample plan for a 30-second product ad places keyframes at 0, 6, 12, 20 and 28 seconds. The guide advises users not to fill all 10 slots, warning that "too many unnecessary keyframes can make the sequence harder to direct."
Kling presents keyframes as a complement to Omni Reference, its tool for keeping characters, products and style consistent. In the company's words, keyframes set "when something should change," while references set "what should stay consistent." The guide also mentions support for up to 15 reference assets and prompts of up to 8,000 tokens.
The guide says the full Kling 4.0 release is due in October. Kling 4.0 Flash, part of the same lineup, opened to a limited group of early-access users on September 28. The post is a product tutorial. It contains no benchmarks, pricing or independent evaluation of how reliably the model follows keyframes.