Overview
Archangel Health builds the infrastructure to post-train and evaluate medical AI: RL environments inside real de-identified EHRs, physician-verified training data, and benchmarks that test clinical reasoning on hard cases. Frontier labs and medical AI companies use it today, and we're now moving toward post-training open-source models for health systems on their own data and their own physicians' judgment
Founders & team
Previously Archangel Health Inc.
Aryaa Bhatia
FounderFounder at Archangel Health Inc. Co-founded Plureto, building tactile-sensing robotics hardware with pilots across hospitals and farms, reaching a $2.5M valuation. Previously research intern at Lawrence Livermore National Laboratory. Founded Origins Customs in high school, scaling to $70K/year revenue by building an in-house manufacturing operation. Studying IEOR and EECS at UC Berkeley.
Tej Patel
FounderFounder at Archangel Health. Previously scaled SimCare AI (YC S24) from [XXX]K to [X]M ARR as Chief of Staff. AI Fellow at Define Ventures. Founded Hippocampi, deploying clinical AI agents in private-practice clinics. Led ML research at Cedars-Sinai, first-authoring a patent-pending GNN for hematoma prediction (IEEE). Published neuroimmunology research at CSUN on myelin-regenerating compounds. BS Neuroscience & Philosophy UC Berkeley.
Founded 2026 · Source ↗
Sources & observations
Y Combinator
Profile depthverified profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedSan Francisco, CA, USA
Pricing evidenceNo pricing page confirmed
Maturity: Not assessed · 2 of 6 areas documented
Source-based assessment · automated evidence rules
The latest capture is empty, blocked or a parked website.
Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.
- Product overviewSource description Checked 2026-11-11
- Product visualsNot documented
- Founders & originsTeam information
- Business model & pricingNot documented
- Funding & ownershipNot documented
- Dated milestonesNot documented
Stage definitionsindependent websitesource corroborationreachable websitedescriptive evidencesourced peoplesourced founding year