Archangel Health
Infra to make AI safe enough to practice medicine
About
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
Public Company Profile
Archangel Health builds post-training and evaluation infrastructure for medical AI, targeting frontier labs and medical AI developers. It provides reinforcement learning environments inside de-identified EHRs, physician-verified training data, and clinical reasoning benchmarks designed around hard diagnostic cases. The product replaces ad-hoc fine-tuning pipelines and internal benchmark construction that labs would otherwise build themselves.
Frontier labs and medical AI companies are the initial buyers, reached through direct sales. The company is expanding toward health systems that want to post-train open-source models on their own data using their own physicians' judgment.
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