From the earnings release Q&A per Scott Sanborn:
"In September, we launched this new model onto our enterprise positioning platform, and we believe it is a significant step forward.
Importantly, we built it using LendingClub's recent performance data, and we deployed the latest machine learning techniques to derive more than 100 customized and behavioral attributes, nearly half of which are proprietary to LendingClub and based on our unique data assets. This sophisticated model does not rely on FICO scores and evaluates credit and trends in a much more granular level than our last-generation model."