PubMatic's AgenticOS platform has now run more than 30 fully autonomous programmatic campaigns globally. Setup times dropped 87% in early tests and every participating advertiser returned for additional campaigns.
Campaign setup time dropped by 87% in early tests. One advertiser cut buy-side fees by more than 5x.
PubMatic has moved past the proof-of-concept phase for agentic advertising. The company now has more than 30 fully autonomous, end-to-end campaigns running globally through its AgenticOS platform. Every participating advertiser has returned for additional campaigns.
That is the clearest signal yet that agentic AI in programmatic is not a research project. It is a buying behaviour.
AgenticOS launched in January 2026 as a three-layer system: an infrastructure layer built on Nvidia computing for fast response times, an application layer for planning, forecasting and measurement, and a transaction layer connected to PubMatic's Activate media-buying platform. The pitch is straightforward. AI agents handle the entire campaign lifecycle, from audience creation through to optimisation, without human intervention at each step.
The results from early adopters are hard to ignore. Geloso Beverage Group reduced buy-side fees by more than 5x, delivered 40% more impressions than planned and drove a 30% lower effective CPM. A national advertiser ran a fully autonomous OLV and display campaign across 800 publishers, with AI agents creating audiences from Attain and Circana data and delivering 107% of impressions and 105% of video completion rate targets.
Reduction in campaign setup time for PubMatic's AgenticOS early adopters
End-to-end autonomous campaigns are now live in the United States, France, the Netherlands, Australia and India. Major agencies including WPP Media are experimenting with the technology. PubMatic CEO Rajeev Goel predicted that by 2028, 25% of all digital advertising will be executed autonomously via agentic AI, rising to 50% by 2030.
The platform is also moving beyond direct deals into open-market programmatic, which significantly expands its addressable volume.
Why it matters
The 100% return rate is the number that matters most. Advertisers are not trying agentic campaigns once and walking away. They are integrating autonomous execution into their buying patterns. That is adoption, not experimentation.
For Australian marketers, PubMatic confirmed that AgenticOS campaigns are running in Australia. The infrastructure is here. The question is whether local agencies and brands are building the capability to use it.
The fee compression is also significant. If buy-side fees drop by 5x on autonomous campaigns, the agency fee model comes under serious pressure. Holding companies already under margin strain cannot afford to ignore that arithmetic.
What to do about it
The programmatic supply chain has been criticised for years for its complexity and cost. Agentic AI is the first credible mechanism to compress both at scale.