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Archangel Health
YC F26San Francisco, US · Founded 2026 · 2 employees · 1 known investors
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Archangel Health provides infrastructure to post-train and evaluate medical AI, including reinforcement learning environments built inside de-identified electronic health records, physician-verified training data, and benchmarks for clinical reasoning. It serves frontier AI labs, medical AI companies, and health systems looking to post-train open-source models on their own data.
Also known as Archangel Health Inc.
Founders & leadership· Y Combinator alumni (F26)
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Aryaa BhatiaFounderand previously co-founded Plureto, a tactile-sensing robotics hardware company that ran pilots in hospitals and farms; earlier she interned in research at Lawrence Livermore National Laboratory and founded Origins Customs, a manufacturing venture she started in high school. She is studying IEOR and EECS at UC Berkeley.
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Tej PatelFounderTej Patel is the founder of Archangel Health, and previously served as Chief of Staff at SimCare AI and as an AI Fellow at Define Ventures. He founded Hippocampi to deploy clinical AI agents in private-practice clinics, led machine learning research at Cedars-Sinai developing a graph neural network for hematoma prediction, conducted neuroimmunology research at CSUN, and holds a BS in Neuroscience and Philosophy from UC Berkeley.
Investors · 1
Frequently asked questions
- What does Archangel Health do?
- Archangel Health provides infrastructure to post-train and evaluate medical AI, including reinforcement learning environments built inside de-identified electronic health records, physician-verified training data, and benchmarks for clinical reasoning. It serves frontier AI labs, medical AI companies, and health systems looking to post-train open-source models on their own data.
- Who are Archangel Health's investors?
- Archangel Health's investors include Y Combinator.
- Where is Archangel Health headquartered?
- Archangel Health is headquartered in San Francisco, US.