Kling 4.0 Flash opens to everyone at $0.094 a second, and 720p is the price

Kling's fast 4.0 tier is open to everyone at a developer list price of $0.094 a second, 40% under the full model. It stops at 720p and 20 seconds, and its edit rate bills at least twice the output length.

Kling 4.0 Flash, the faster tier of Kling's newest video model, opened to everyone on Wednesday at $0.094 a second at 720p, exactly 40% under full Kling 4.0 on Kling's developer price list. The number holds up, but working out what a shot will really cost you still takes arithmetic Kling does not do for you.

Flash makes clips of 3 to 20 seconds from text, from a single first frame, or guided by up to 10 stills and five video clips you supply, and it keeps native sound. It stops at 720p, and it cannot hold a set last frame or clone a voice, both things the full model does. Buying direct from Kling starts with a $500 prepaid pack, which works out to about $0.092 a second; resellers such as Runware sell it per second from $0.094 with no minimum.

The cheaper-looking edit rate is where the math turns. Editing footage lists at $0.063 a second, but Kling bills at least twice the output length, so a 10-second edit of a 10-second clip costs $1.26 against $0.94 for a clip made from text. Kling 3.0 without sound is also still cheaper than Flash, at $0.084 a second.

Our take: Flash is a good deal for drafting a shot many times at 720p before paying full price for the take that works. What most creators would pay inside Kling's app is still unpublished, and no independent test has scored its quality yet.

Full story, with the full price table, via the

Source: Kling developer price list and changelog, read Nov 5, 2026; Kling on X, Nov 4, 2026.

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