Rubber Ducky Labs, a company dedicated to making recommender systems easier to build and imbue with human knowledge, has announced a $1.5 million seed investment round led by Bain Capital Ventures. The company, which completed Y Combinator in Winter 2023, provides teams with a paved path for analyzing and iterating on recommender systems, enabling them to explore data visually and drill down into metrics on individual items or users. The company was founded by Alexandra Johnson and Georgia Hong, both of whom have backgrounds in machine learning and infrastructure.