Seedance 2.5 per second: Runway 20/30/68 credits vs Sume's rates

Runway's API lists Seedance 2.5 at 20, 30 and 68 credits per second, which at $0.01 a credit is $0.20, $0.30 and $0.68 at 480p, 720p and 1080p. Sume bills $0.2687, $0.5778 and $1.4216 per second for a 10-second 16:9 clip with no references, so Runway's list is lower at every resolution.

Caveats on the Runway side

Runway's pricing page notes that Seedance 2.5 also charges for input video, which this table leaves out. The credit price is $0.01 on the API pricing page.

Caveats on the Sume side

Sume's Seedance 2.5 price depends on length, resolution and any reference media, and the 4 to 30 second range is in the Video Router docs. Check the rate card and the catalog for your exact request.

When Sume still fits

If the rest of your pipeline (voice, music, captions, render) is on Sume, one balance covers all of it. If you only need Seedance 2.5 clips, compare totals, not just per-second prices.