OpenAI switches on ChatGPT ads across 31 European markets

OpenAI has switched on advertising in ChatGPT across 31 European markets, the company's largest ad expansion since it began quietly testing the format in the United States six months earlier. According to a report on dev.to, the rollout took effect on 24 August and shows ads to users on the Free and Go plans, while Plus, Pro and Enterprise subscriptions remain ad-free.

What is rolling out

The dev.to post cites an OpenAI announcement dated 18 August naming Germany, France, Spain, Italy, Sweden, Norway, Denmark, the Netherlands and Austria among the markets, with other reporting adding Poland and the Benelux countries. The pilot began in the US in February and later expanded to eight further markets, so the European rollout brings the total to roughly 40. In the same announcement, OpenAI describes the advertising machinery it has built: bidding that goes beyond CPM and CPC to support conversion optimisation, geo-targeting and custom audiences, and measurement through the OpenAI Pixel, a Conversions API and third-party measurement integrations. As the dev.to piece notes, this is the standard toolkit of the online ad industry, now assembled inside a chatbot.

The opt-out only goes so far

Users can control ad personalisation, which changes which ads they see, but they cannot turn ads off entirely. The only switch that removes them is a paid subscription; the dev.to report puts Plus at €23 a month. OpenAI's own wording, quoted in the report, is that people "have control over ad personalization, with ad-free paid plans available for those who prefer not to see ads." The distinction matters: the toggle governs tracking and relevance, not presence, and a hurried reader could easily mistake one for the other.

Privacy commitments

On privacy, OpenAI has made specific pledges. Its VP of Ads, Dave Dugan, has said advertisers "will not have access to users' chat histories" and that information from conversations would not be shared with advertisers. The company adds that it keeps conversations private from advertisers, never sells customer data, labels ads clearly and keeps them separate from ChatGPT's answers, and that advertising does not influence the responses ChatGPT provides.

The dev.to piece offers a caveat worth repeating: personalisation, conversion optimisation and custom audiences still require the system to know something about the user. The promise is that advertisers never touch that information, not that no profile exists at all, and holding that line depends on internal discipline as commercial pressure on the ads business grows.

Why the medium is the concern

The deeper question raised in the report is not the banner-style ads shipping today but the conversational format around them. A chatbot answers in a single, confident voice, and a recommendation delivered in that same tone is harder to recognise as persuasion than a clearly labelled sponsored link. Researchers quoted by Euronews, according to the report, flagged exactly this. OpenAI states that advertising does not influence answers; the test will be whether that separation stays intact over years of monetisation pressure.

Europe is the harder place to launch

A European rollout carries regulatory weight that a US one does not. The EU AI Act prohibits AI systems that use manipulative or deceptive techniques to distort behaviour, and the European Commission has been weighing whether ChatGPT's search function should count as a "very large online search engine" under the Digital Services Act — a designation that would bring audit and ad-transparency obligations. The dev.to report argues this cuts both ways: the regime that makes the launch risky is also the one most likely to keep it honest, and OpenAI's careful, clearly labelled, no-data-selling design looks like a deliberate way to enter that environment.

Why it matters

This is the moment the free AI assistant becomes an ad-supported product across most of Europe, on terms different from what most users originally signed up for. For OpenAI, advertising is a defensible way to fund a genuinely expensive free tier. For users, the available controls govern how relevant ads are, not whether they appear. For regulators, an ad-funded conversational agent arriving at scale inside the EU's newest AI rules will be a live test case, and for the wider industry, whatever precedent OpenAI sets here is one that competitors building answer engines are likely to follow.