How Curative built a national provider network with agents on Claude

Curative built a hierarchy of agents on Claude to sign provider contracts about 50 times faster than its team did in 2025, reaching 23,000 contracts signed with its agent Gwen and 2,000 to 2,400 new contracts a week. Gwen handles one provider deal per run, mostly on Claude Opus, while a Sonnet rate reviewer clears about two-thirds of its above-template rate requests and a Haiku judge reads every message before it is sent. Each contract takes about 20 million tokens, roughly a tenth of the original cost, and Curative's contracting team has grown from 45 to about 55 people, each about 2.5 times as productive.