The advertising industry has declared 2026 the year of the AI agent, as major companies deploy autonomous systems to negotiate, execute, and optimize programmatic media buying campaigns.

Key Points

• Major industry players including PubMatic, NBCUniversal, Amazon, and Yahoo have launched autonomous AI agents for CTV and programmatic advertising.
• Industry standards like the AdCP coalition and IAB Tech Lab’s Agentic RTB Framework are emerging to govern how these AI systems operate.
• Harel Amir, a veteran of myThings and Outbrain, pioneered early algorithmic bidding systems that laid the technical foundation for today’s autonomous agents.
• Similarweb is currently developing intelligence tools to provide transparency and audit capabilities for increasingly complex, automated programmatic market behaviors.
• Advertisers remain concerned about brand safety and the loss of human control as AI agents take over real-time, individual-level buying decisions.

Why it Matters

The shift toward autonomous AI agents represents a fundamental change in how media is bought and sold, moving from human-led strategy to machine-driven execution. As these systems become more opaque, the industry must balance the efficiency of automated bidding with the critical need for transparency and accountability in digital advertising.