A 30-second launch hero: Seedance 2.5 $17.34, Wan 3.0 $3.75

At 720p on Sume, a 30-second hero costs $17.34 in one Seedance 2.5 job, $3.75 in one Wan 3.0 job, and $3.85 as three 10-second Gemini Omni Flash 1.1 clips joined on Timeline (read 2026-10-08). Both Seedance 2.5 and Wan 3.0 accept up to 30 seconds in one job, while Omni Flash stops at 10.

The three routes

Prices are Sume billable per job: catalog list x 1.25, rounded up to a cent. A longer single shot avoids a cut, but the cost is not linear in your favour: Seedance 2.5 at 30 seconds is exactly two 15-second jobs, so splitting it saves nothing and adds a join.

What you give up

The cheaper routes are not drop-in swaps. Omni Flash is 16:9 or 9:16 with native synced audio always on and no audio reference. Wan 3.0 accepts reference audio and video, with limits of 5 clips and 15 seconds total for each type. Seedance 2.5 adds 1080p at a much higher price: its 30-second 9:16 clip is $42.65 at 1080p, five times the 720p price of Wan 3.0 for the same length multiplied again by resolution.

So decide by what the hero must do. A single continuous take favors one job. A montage of three beats favors the join, where each 10-second clip has its own prompt.

Test small first

A 30-second clip is a big bet on one prompt. Run the same prompt at 4 or 5 seconds on the target model to check the look, since Seedance 2.5 at 480p for 5 seconds is $1.35. Keep the Timeline plan call in the loop for the join: it is unbilled and tells you the billable minute before you pay.

curl -X POST https://api.sume.com/v1/video-router/generate \
  -H "Authorization: Bearer $SUME_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: hero-30s-wan" \
  -d '{
    "model": "wan-3.0",
    "prompt": "One continuous take: the product on a pedestal, camera orbits, light sweeps across the label",
    "resolution": "720p",
    "duration": 30,
    "mode": "async"
  }'