Price per second of 720p AI video on Sume: Wan, Omni, Seedance ranked

At 720p, Wan 3.0 and Gemini Omni Flash 1.1 are the cheapest per second on Sume at $0.125 each, before the 5.5% fee. Seedance 2.0 mini is next at about $0.189 per second, and Seedance 2.5 is the dearest of this set at about $0.578. Seedance prices are shown for a 10-second clip because token-based pricing is per clip, not per second.

How the ranking is built

Wan and Omni have a flat per-second list rate in the repo ($0.10 at 720p for each). Sume multiplies list by 1.25. Seedance is billed by video tokens, so a 10-second clip is divided by 10 to give a per-second figure. At 720p a 10-second clip is 216,000 tokens on every Seedance model.

Ranked table

The last column adds the 5.5% platform fee to the clip price before dividing by 10. Resolution is 720p throughout; the clip lengths are all inside every listed model's duration range.

What the ranking does not tell you

Price per second says nothing about output quality, audio or prompt adherence, and Seedance 2.5 supports clips up to 30 seconds where Seedance 2.0 stops at 15. Test two or three prompts on the cheap models first. Another model on the list, Veo 3.1 Lite, is compared against Wan in a separate post.

Where to read current rates

The API pricing page and the video router docs are the places to confirm a rate before a large run. Rates in this post were computed on 2026-10-07 from the repo's rate sources.