Underwrite.ai Overview

Mark Stein is the founder and CEO of Underwrite.ai, a company he started four years ago to apply nonlinear machine learning models to financial services. The goal was to move beyond traditional decision making methods and build systems that are both faster and more transparent.

With Driverless AI, Underwrite.ai can not only make a lending decision in real time, but also extract the exact variables that influenced that decision. This allows lenders to automatically generate fully compliant adverse action reports without manual intervention. What once required human review can now be handled end to end by an automated system.

Performance was a core focus from the start. Early on, the company set a benchmark of delivering decisions via API in under 40 milliseconds, with an aspirational target of 20 milliseconds. Today, that performance has been pushed dramatically further, down to half a millisecond. Decisions are now measured in nanoseconds rather than milliseconds.

This level of speed and explainability allows lenders to replace slow, manual processes with fully automated workflows while remaining compliant with regulatory requirements. Decisions can be made, explained, and delivered in less than half a millisecond.

While financial services has been the primary focus, the same technology is also being applied to genomics, particularly in predicting cancer risk from genetic data. According to Stein, these are just two examples of the many complex challenges nonlinear machine learning is well suited to solve.

His hope is that more people adopt tools like Driverless AI and H2O to tackle difficult problems across industries. As more practitioners engage with this technology, its impact grows, not just in business performance, but in creating meaningful improvements in the world.