How Agentic AI Is Reshaping Media Buying Economics

PubMatic claims AI agents are now the primary driver of ad spend allocation. If true, buyer behavior is shifting from incremental tool adoption to structural workflow replacement. Agentic AI consolidates decision-making authority—which means ad networks and DSPs that can't embed autonomous agents into client workflows risk becoming commoditized conduits. The question is who captures the value of media buying efficiency: the platforms that control the agents and their data, the agencies that resist them, or the advertisers that deploy them directly.