Budget for 500 vertical AI video ads a month: $440 to $1,890

Five hundred 10-second 9:16 ad clips cost $439 on Sume's cheapest option (seedance-2-mini at 480p) and $1,890 on seedance-2 at 720p, before the 5.5% agent fee that applies by default. On Runway's page, seedance2_mini at 720p is 16 credits a second and seedance2 at 720p is 36, which at $0.01 a credit is $800 and $1,800 for 500 clips.

Runway figures are from its pricing page, read 2026-10-01. Sume figures are the reserve estimates the API uses at submit, from the video docs and the pricing code; 9:16 estimates for these ids match 16:9.

What does one 10-second vertical clip cost?

Per clip, then times 500. Tier choice moves the total more than anything else you control.

What else belongs in the monthly budget?

Generation is not the whole ad. Add these Sume items for the clips you keep, before the agent fee:

• Timeline join, trim or sound: $0.10 per output minute, so $50 for 500 renders of up to 60 seconds.
• Standalone captions: $0.20 per job for videos up to 60 seconds, so $100 for 500.
• Rerolls: the clips you throw away are billed when they complete. If you keep 1 in 3, multiply the generation line by 3.

How do I keep the budget from drifting?

Draft at 480p and render finals at the size you ship. Reserve is held at submit, and a balance below the estimate fails with 402 insufficient_credits instead of overspending, so top up before a batch. Read GET /v1/usage after the first 20 clips and rescale the month from the real average; the estimate guide shows the method.