Unit Cost NotesField notes on the Wan 3.0 video API — sourced, dated, and corrected in public.

Unit Cost Notes

Short reference notes on Alibaba's Wan 3.0 video model, written while building a front-end for it. Every number is checked against the vendor's own documentation and dated, including the numbers that are unflattering.

• Unit Cost Notes

  What each knob on a generative video request actually costs, and which limits are budgets rather than settings.

• Resolution is a 4x price multiplier, not a quality slider

  Alibaba's list price for Wan 3.0 is per second of output, and it moves with resolution:

• Three reference budgets that do not pool

  Wan 3.0 takes reference material with one request. The published caps are:

• One document up to fifty pages, or one public link, and never both

  Wan 3.0 will take a document or a web page as the starting point for a video. The published limit is precise, and the precision is the interesting part:

• About Unit Cost Notes

  Short notes on what the individual knobs of a generative video request cost, and on the limits that read like preferences but behave like budgets.

The specification table these notes are drawn from lives at wan-3.run/wan-3-0-specs, with each row linked to its source.