sume/auto video: default 8 s at 720p, and a 2 to 4,286 cent range

sume/auto is the Video Router Auto model: you send a prompt and Sume picks the model. Its create controls default to 720p and 8 seconds, and clips run 3 to 10 seconds at 16:9 or 9:16. The public catalog lists the Video Router entry with an estimated price of 50 cents, a minimum of 2 cents and a maximum of 4,286 cents.

Because Sume does not say which family served the request, the price you can plan on is a range, not a single rate. This post shows the arithmetic behind the defaults so you can set a spending cap.

What the docs and catalog say

Read 2026-10-09. The poll response reports model: sume/auto, and resolution is a pure function of the normalized request and the catalog version, so an idempotent replay gets the same price and route.

• Default resolution 720p, default duration 8 seconds, 3 to 10 second clips, 16:9 or 9:16.
• Catalog estimate: 50 cents; minimum 2 cents; maximum 4,286 cents ($42.86).
• Sume does not disclose which family served the request, and it tells you not to infer the family from the output.
• Video 1.0 is a compatibility alias for the same Auto pipe, and the docs say Sume will retire it.

An 8-second 720p clip on each pinned row

If you pin a model instead, the same default clip costs the amounts below.

When to pin, when to use Auto

The 50 cent estimate is below every 8-second 720p price in the table: the cheapest, $1.00, is double it. The estimate is a catalog planning figure, not a quote, so do not size a budget on it. If cost per clip matters, pin the model; if you want one request shape that works while the catalog changes, use Auto and cap spend at the maximum.

A pinned request is below, for comparison with the Auto body {"model":"sume/auto","prompt":"...","aspect_ratio":"9:16","duration":5}.

curl -X POST https://api.sume.com/v1/videos \
  -H "Authorization: Bearer $SUME_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"wan-3.0","prompt":"A vertical clip of rain on a window","aspect_ratio":"9:16","resolution":"720p","duration":8}'

Setting a cap

The following figures use the same list prices as the tables above.

• If your application can fail a job above $5.00, check the estimate before you submit and compare it with your cap.
• The pinned Omni and Wan options both come to $1.00 for the default clip, which is a useful reference line.
• Replays with the same Idempotency-Key get the same price and route, so retries do not change the cost.