Kling AI Video Length Limit: Maximum Duration by Version and Plan (2026)

Kling AI limits individual text-to-video and image-to-video generations to either 5 or 10 seconds across all listed model versions, while its paid Extend feature can add roughly 4 to 5 seconds at a time until a clip reaches a maximum of 3 minutes. Free Basic accounts are limited to a single, watermarked 10-second 720p clip and cannot use extensions, whereas paid plans provide credits, higher-resolution output, watermark removal, and extension access; the cost of long videos can rise because each generation and extension consumes credits. Although newer models, including Kling 3.0, improve capabilities such as native 4K output, they do not increase duration limits. The source also notes community reports that quality tends to remain stable for about 30 seconds but may show motion, color, and subject inconsistencies after around 60 seconds of chained extensions, making shorter clips edited together a potentially more reliable workflow. It presents API-based, per-second billing through Atlas Cloud as an alternative for larger or batch projects, while emphasizing that such workflows remain subject to Kling’s per-generation and total-extension limits.

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