Trellis AI is a startup developing an AI platform that automates patient intake, prior authorizations, insurance benefits processing, and appeals for specialty healthcare providers and diagnostic labs. The platform processes unstructured documents into structured data, integrates with EHRs and insurance systems, and reduces administrative burdens to accelerate patient care and increase revenue. Backed by Y Combinator and investors like General Catalyst, it targets U.S. healthcare providers facing high administrative costs.