SAN MATEO, Calif.--(BUSINESS WIRE)--Upstart (NASDAQ: UPST), an artificial intelligence (AI) lending marketplace, announced today a forward-flow commitment from funds managed by Castlelake, L.P. ("Castlelake†), a global alternative investment firm specializing in asset-based private credit investments. Castlelake has agreed to purchase up to $1.5 billion in consumer loans originated through the Upstart platform. The purchase agreement consists of a new 12-month forward flow arrangement and is th. ...