Ten-episode micro-drama on Wan 3.0: 30 s episodes, cost by tier

A ten-episode season of 30-second wan-3.0 episodes costs $18.80 at 480p, $37.50 at 720p and $75.00 at 1080p on Sume. Each episode is one job, so the season is ten jobs, and Sume rounds each job up to the cent before you add them, which is why the 480p total is $18.80 (ten times $1.88) and not $18.75.

The arithmetic

Wan 3.0 lists $0.05, $0.10 and $0.20 per second. Sume bills the list price times 1.25, so 30 s at 480p is 30 x $0.0625 = $1.875, rounded up to $1.88. At 720p it is 30 x $0.125 = $3.75 and at 1080p 30 x $0.25 = $7.50. Ten jobs multiply the rounded per-job figure.

A season plan with drafts

Draft every episode at 480p ($18.80), choose the episodes that work, and render those at 1080p. If seven of ten drafts are good, finals cost 7 x $7.50 = $52.50, for a total of $71.30, against $75.00 for rendering all ten at 1080p straight away and discarding three. That drafting saves only $3.70 here, so it pays off mainly when the weak episodes would need several tries.

A failed job is refunded, and cancel works only before generation starts, so failures do not add to the total, but a job that completes and is unusable does.

What to keep consistent

• Reuse one reference set across all ten episodes. Wan 3.0 on Sume takes up to 10 reference images per job.
• Pin resolution in every request. The pricing code defaults an omitted wan-3.0 resolution to 1080p, so a forgotten field costs double a 720p episode.
• Send an Idempotency-Key per episode so a retry cannot bill the same episode twice.
• Use callback_url instead of polling if you run the ten jobs in parallel.

Running ten jobs without double billing

Submit the ten episodes with ten different Idempotency-Key values and store each key next to the episode number. If your script crashes halfway, rerun it with the same keys and Sume returns the job already created rather than queueing a second one. Without keys, a rerun would queue and bill the first five episodes again, which at 1080p is 5 x $7.50 = $37.50 of duplicate spend.

Sume reserves each job's cost when it is submitted, and a 402 insufficient_credits response means the reserve could not be placed. Ten 1080p jobs at once reserve $75.00 together, so check your balance covers the season before you start the loop.

Season arithmetic with retries

Not every episode lands on the first take. If one in three needs a second 720p render, ten episodes become about thirteen jobs, so $48.75 instead of $37.50. Budget that margin before the season starts. Draft at 480p where a retry costs $1.88, and reserve 720p or 1080p for takes whose script and framing you have already approved.

If episodes are shorter

Twenty-second episodes at 720p are $2.50 each ($25.00 for ten) and fifteen-second episodes are $1.88 each ($18.80). Wan 3.0 accepts 2 to 30 seconds, so the length is a script choice.