Kling 3.0 in the Sume Videos panel: audio on or off cost per clip

In the Sume Videos panel, a Kling 3.0 clip costs $0.14 per second with audio off and $0.21 per second with audio on, so 5 seconds is $0.70 or $1.05 and 10 seconds is $1.40 or $2.10. Audio adds 50% to the price of every clip.

These figures come from the code behind the panel's Create estimate, which uses the same estimator as API admission: provider list ($0.112 per second without audio, $0.168 with) times 1.25. Kling is not a model id in the Video Router docs, so this is a panel price, not a router quote, and no Kling vendor page was available to read today.

The numbers

Credits are cents, rounded up per job.

Deciding whether audio is worth it

For 20 clips of 10 seconds, audio off is 20 x $1.40 = $28.00 and audio on is 20 x $2.10 = $42.00, so the audio option is worth $14.00 for the test. If you will replace the sound with a voiceover or music anyway, leave it off.

Compare the same 10 seconds on the Video Router: Wan 3.0 at 720p is $1.25 and H3 Max at 768p is $1.00. Gemini Omni Flash 1.1 always includes native synced audio and is $1.25 at 720p (the Video Router docs have the catalog).