OpenAI switched on ChatGPT Ads across 31 European markets on Monday, six months after a February pilot in the United States, making Europe the platform’s largest single geographic step and Germany, France, Spain, Italy and Sweden its most consequential new inventory. Twenty other countries round out the list, including Norway, Denmark, the Netherlands, Austria, Poland and Ireland.

Access is initially agency-mediated. Buys flow through OpenAI’s Ads Solutions team, technology partners, and a roster of holding-company shops: Publicis, Omnicom, WPP, Havas, Dentsu and MediaPlus. Self-service through Ads Manager is promised, in OpenAI’s phrasing, “later this summer”, which is when the channel becomes legible to smaller advertisers who don’t retain an agency.

The scale claims are doing the work here. On a briefing call, OpenAI enterprise CMO Colin Fleming told Adweek that ChatGPT has one billion weekly active users, with 20% showing commercial intent, and that ad revenue has grown more than 25% since the start of August. OpenAI says tens of thousands of marketers have run campaigns to date. Since the pilot, the platform has added conversion optimization, geo-targeting, custom audiences, and third-party measurement via the OpenAI Pixel and a Conversions API.

The European launch runs on GDPR’s legitimate-interest basis: targeting draws on current conversation topic, approximate location, device type, time of day and language. Personalized ads keyed to ad history and inferred interests require explicit opt-in. Ads appear on the Free and Go plans only; Plus, Pro and Enterprise stay ad-free.

The structural read is that a chatbot has become an ad network mid-decision, not mid-scroll. That’s the inventory advertisers are actually being sold, and the priors of every performance channel will get repriced accordingly.

Sources