OpenAI launches ChatGPT Ads across Europe, with one big catch

On Monday, August 24, OpenAI opened up ChatGPT ads in 31 European countries, including the Netherlands. The ad inventory is now available, but not every business can launch campaigns on its own yet: initial access runs through OpenAI and selected partners, with a self-serve Ads Manager slated for later this quarter.

The rollout covers all 27 EU countries plus Norway, Iceland, Liechtenstein, and Switzerland—marking ChatGPT’s first large-scale ad push across Europe.

Europe follows earlier ad tests in other markets. With this step, OpenAI is building a new revenue stream around ChatGPT alongside paid subscriptions and enterprise services.

ChatGPT displays ads separately from the AI’s answers. Sponsored results are labeled as ads, and OpenAI says advertiser payments do not influence what ChatGPT says in its responses.

Not everyone will see ads. OpenAI limits them to ChatGPT Free and Go users. Plus, Pro, Business, Enterprise, and Edu remain ad-free. Accounts identified as belonging to minors also won’t see ads.

OpenAI adds that advertisers do not get access to individual user conversations. They do receive data to measure campaign performance.

Ads can align with the live conversation a user is having with ChatGPT. OpenAI can factor in the topic and intent of the current chat, language, device, country- or region-level location, and the ad and landing page content.

Advertisers can also use “context hints” to indicate which topics and conversation types their ads should match. It’s somewhat akin to keyword ads, but a context hint doesn’t guarantee an impression on a specific term.

The European version comes with stricter limits. Custom audiences are not supported for campaigns targeting the European Economic Area or Switzerland. That means brands can’t, at launch, build classic audience lists from uploaded email addresses or phone numbers.

Broader personalization based on prior ChatGPT chats or Memory is also off the table for ads in Europe at launch. For now, targeting leans heavily on the live conversation context.

Advertisers can buy on impressions or clicks. OpenAI supports CPM—paying per thousand valid impressions—and CPC—paying per valid click.

OpenAI is also rolling out conversion-optimized CPC (oCPC). Despite the name, you still pay per valid click. OpenAI simply optimizes delivery toward users more likely to convert.

That optimization requires conversion data. OpenAI offers a browser-based Pixel and a server-side Conversions API to connect events like purchases, sign-ups, and other site conversions to ChatGPT ads.

The ad platform also includes an Advertiser API covering campaigns, ads, reporting, audiences, product feeds, and conversion data. Some features may require prior approval or activation from OpenAI.

Here’s the catch: availability doesn’t yet mean open self-serve access. Early campaigns run through OpenAI’s Ads Solutions team, selected agencies, and tech partners.

A general self-serve experience is promised for later this quarter. OpenAI hasn’t given a specific date.

That’s a notable contrast with incumbents like Google Ads and Meta Ads, where businesses can open an account and launch instantly. For ChatGPT Ads in Europe, there’s an extra gate—at least for now.

It’s still hard to independently assess ChatGPT ad performance. Claims of 5–6 percent conversion rates are circulating, but there’s no convincing public benchmark representing the platform as a whole.

That distinction matters: different ChatGPT traffic metrics often get mixed up. A high click-through rate isn’t a conversion rate. And conversions from organic ChatGPT referrals don’t necessarily say anything about paid ad traffic.

OpenAI has shared positive customer results, including a Newegg case study. Useful as an early signal, sure—but not an independent benchmark for what European advertisers should expect.

The European push matters because OpenAI is tying ads to conversational intent. In ChatGPT, people often spell out what they need, the problem they’re solving, and the criteria for a solution—much more than in a typical search query.

That could give OpenAI a different angle from classic search and social ads. In theory, a brand can show up during the very conversation where a consumer is researching products, weighing options, or trying to make a purchase decision.

Whether that translates into better results remains to be seen. The lack of broad self-serve access, custom audiences, and independent performance benchmarks makes the coming months a real-world test for OpenAI and advertisers alike.