Two pages. The architecture, and the proof.
The architecture brief, rendered for the web. The body never changes per recipient; personalized openings live at /brief/{slug}.
Seventeen years between what medicine knows and what medicine does.
Lucy reads the chart, remembers the literature, and prepares the questions worth asking. One engine. Four readers. One record.
One company, one chain, five surfaces.
Lucy in the Loop, Inc. is the company and the asset. lucy.md is the flagship. The my\[relation\]Health surfaces are how the people who need Lucy first find her. The institutional tier is where the cash sits. The capsule audit chain is what makes every output defensible in a clinical conversation and admissible in a legal one.
Free for the chronic. Paid for the acute. Institutions pay most.
The same record serves opposed sides. Health systems retain patients. Payers avoid those same patients. The radar gun and the radar detector run on the same data, and Lucy serves both.
| Reader | What they pay for | Cycle |
|---|---|---|
| Families in crisis | Synthesis under time pressure | Days |
| Disease communities | Member benefit, cohort insight | Medium |
| Plaintiff bar | Admissible audit chain | Medium |
| Payers | Outlier detection before the claim | Long |
| Health systems | The standard-of-care tool counsel will require | Longest |
A working ledger, dated.
- Q1 2026
Working product
Deployed on one patient in an active acute-care case. Reads labs, vitals, meds, conditions, notes, imaging. Generates the morning brief before rounds.
- Q1 2026
The working example
A 2025 paper predicted the four complications the patient presented with. Three of four were caught and managed before they advanced.
- 2026
Capsule protocol
Submitted to NIST. Patent pending. Two signatures per output, one post-quantum. Every answer Lucy gives is tamper-evident and admissible.
- Ongoing
Curated training provenance
Named clinicians, named journals, named guidelines. Signed into the capsule chain with attribution.
You’ve created a system that stands one of my big tests: can anybody argue against it with a camera in their face?
If you are reading this brief, you almost certainly already know how we found you. Write to brief@lucyintheloop.com and tell us what conversation you would like next.
Replies are personal. Within a day.