Ataraxis AI

Ataraxis AI is a New York-based precision-oncology company building AI-native cancer diagnostics. Founded in 2022 by physician-scientist Jan Witowski and AI researcher Krzysztof Geras, it developed Kestrel, a digital-pathology foundation model trained on hundreds of millions of tissue images. Its flagship platform, Ataraxis Breast, reads standard pathology slides to predict recurrence risk and estimate whether an individual patient will benefit from chemotherapy - reported to be roughly 30% more accurate than the current standard of care - returning results within about an hour and without additional tissue procedures.