Today in Oregon, the listing agent represents the seller, and the buyer's agent represents the buyer.
Sellers still pay the commission, but it is paid to the brokerage firm of the agents.
Agents can elect to represent either the seller or buyer, or both if the situation arises wherein the listing is one that is listed by the Buyer's agent's office. That's called a dual representation. Buyer's have a choice of working with an Buyer's Agent or using an agent who is working for the seller. There is no cost to the buyer for working with a Buyer's Agent but the benefits are significant. Total commitment to the Buyer 2.