Archangel Health
New accelerator entry · 2026-09-29 · the record
In their words
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
What the record says
Checked away from the directory entry. What is below does not come from the company's Y Combinator page.
Physician-graded data, RL environments and evals for medical AI.
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Founder 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.
Founder 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.
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Sourced from the company's Y Combinator directory entry, and from the company's own site, read directly on 2026-09-30 (archangelhealth.ai).