What is the Hybrid route?

The Hybrid route refers to the immediate Open Access publication of an article within a subscription journal. In this model, some articles are made freely accessible upon payment of Article Processing Charges (APC), while the rest remain available only to subscribers. 

 Please note that some hybrid journals offer to publish articles as Gold Open Access. This is a misuse of terminology on their part. Articles in hybrid journals are in Open Access, while the Gold route is a separate mode of publication.