Kling 4.0 makes video clips up to 30 seconds
Kuaishou released Kling 4.0 to everyone, with clips from 3 to 30 seconds, up to 4K, stereo sound and up to 10 keyframe images.
Kling 4.0 became available to all Kling users on 2026-10-15. A clip can run from 3 to 30 seconds at 720p, 1080p or 4K, with stereo sound and lip sync. You can steer it with up to 10 keyframe images (pictures of moments the video must pass through), plus reference photos and up to 5 reference videos. A faster version, Kling 4.0 Flash, is meant for frequent use.
Google Flow stops at 15 seconds per clip, so Kling can fit a whole short scene or ad in one go. Kling does not publish how many credits each clip costs, which makes its plans hard to compare before you pay.
Kling has a free plan with a watermark, and paid plans start at $8.80 a month. Google Flow is still our top pick in AI video generators.
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