DSP

Last updated: September 2026 OpenAI Ads, Google Ads, and programmatic advertising are not three versions of the same thing. OpenAI Ads reaches people inside ChatGPT conversations, Google Ads captures people actively searching, and programmatic advertising, bought through a DSP (demand-side platform), reaches your audience across the entire open internet: websites, apps, streaming TV, audio, and digital out-of-home. The first two are walled gardens. The third is everything else, which is most of the internet.