Comparison of the efficacy of COVID-19 responses in South Korea and the United States
Oliver Choi and Sunjoo Kim, Global Health Action, 2024.
Ex ante is Latin for “before the event.” We’re building tools to help researchers make better decisions before committing time, materials, and compute.
Our aim is to reduce barriers for labs with limited budgets, including teams in lower-income regions.
Each project begins with an earlier question: which protein to fold, which constraints shape a price, what an existing blood count can reveal, or which particle design to test.

Founder, ExAnte Labs
Oliver works across computational biology and public-health research. He develops Optifold, ExAnte’s sequence-based score for protein-folding experiments.
Oliver Choi and Sunjoo Kim, Global Health Action, 2024.