ChatGPT ads are open in Europe. Your landing page decides the test

In July we told European business owners they could not buy ChatGPT ads, and that access would probably arrive one country at a time. It arrived all at once. Ads switched on for ChatGPT users in 31 European markets on 24 August, and on 31 August OpenAI opened its self-serve Ads Manager to businesses in all of them. If you run a guesthouse in Porto, a surf school in Ericeira or an online shop in Utrecht, you can open an account today. Before you do, know what happens next: a machine reads your landing page before any customer does, and in Europe the ad can only be matched to the question someone is asking at that moment. Both of those make the page you link to the real subject of the test.

TL;DR: ChatGPT ads have been open to European businesses since 31 August 2026. Check three things before a first test: health, financial and legal services are still barred outside the US; OpenAI's automated review reads your landing page and rejects pages it can't evaluate; and EU ads match the current conversation only, so link a page that answers one specific question.

Can European businesses buy ChatGPT ads now?

Yes. A business registered in any of 31 European markets, the 27 EU countries plus Norway, Iceland, Liechtenstein and Switzerland, can now set up ChatGPT ads itself. Ads began showing to users there on 24 August 2026, sold at first through OpenAI's sales team and agency partners; self-serve access at ads.openai.com followed a week later. In late October OpenAI said more than 100,000 advertisers have used the platform, so the auction you would join is no longer empty.

We got the shape of this wrong. In our July post on ChatGPT ads we quoted the expectation of "a slow, country-by-country drip rather than a single 'ChatGPT Ads Europe' announcement", and a single announcement is what came. The reasoning in that post still holds: a new auction does not fix a conversion path that can't tell you where a lead came from. In July a country dropdown kept you out. Now the limits are your category and your landing page.

Which businesses still can't advertise on ChatGPT in Europe?

OpenAI's ad policy limits the early programme to a short list of categories: household and consumer goods, local services, travel and entertainment, and digital products and education. Anything outside that list is disallowed at launch, and three regulated categories are closed to Europe specifically.

In the policy's words: "Ads for health services outside the US are generally prohibited." "Ads for financial services outside the US are generally prohibited." "Ads for legal services outside of the US are currently prohibited." In the US, OpenAI may approve dental practices, clinics, insurers and licensed law firms case by case. Outside the US, the policy shuts them out for now.

A restaurant, a guesthouse, a tour operator, a cleaning company, a language school and an online shop selling homewares fit the allowed list. A dental clinic, a physiotherapy practice, an insurance broker and a law firm do not, however good their landing page is. Wellness businesses sit in between: fitness classes and general wellness products can qualify, but the policy names "services such as health coaching" among the things it won't run.

If your business is in a closed category, the decision is made for you this quarter. The page work in the rest of this post still applies to every other channel you pay for.

Why does OpenAI review your landing page before your ad runs?

OpenAI reviews the landing page as part of the ad. Its policy says each ad's "title, copy, media, and landing page" are checked, mostly by "machine learning systems, including LLMs and classifiers", with some decisions escalated to people. One line in that policy matters more to a small business than any bidding setting: "Ads or landing pages that cannot be reviewed or evaluated by our systems are not eligible to run."

A page that only shows its content after scripts run, an offer that lives inside an image or a PDF, a booking widget with no text around it, or a cookie wall that covers the page before anything loads: each of these gives an automated reviewer less to evaluate. The policy adds two rules. Ads must be "consistent end-to-end", and the landing page must "accurately represent the advertiser, product, or service described in the ad". If the ad promises a sunset kayak tour and the link opens a homepage with six activities and no price, the reviewer has to hunt for the offer the ad describes, and so does the visitor.

This is the part we would check first on any site we look after, because it is the same discipline that makes a page work for people. The offer named in the ad should be written on the page in plain text, near the top: what it is, where, for whom, what it costs or how it is priced, and the one action to take. If a language model can't summarise the offer from the page in two accurate sentences, a hurried visitor probably can't find it either.

How are ChatGPT ads targeted in Europe?

ChatGPT ads in Europe are matched to the conversation happening at that moment, not to the person. Independent guides to the European launch report that personalised ads are not available in the European Economic Area or Switzerland at launch: the system uses the topic of the current chat plus coarse signals such as language and general location. OpenAI says it keeps conversations private from advertisers, so you will never see the question that triggered your ad.

Context-only matching changes where the click should land. Someone asking ChatGPT for a family-friendly surf lesson near Lisbon in late October has already told it their constraints: children, a season, a place. If your ad appears under that answer and the click opens your homepage, you have made them start again. The page that wins that click is the one that answers the question they just asked, which usually means one page per offer rather than one page for the whole business.

Two more limits shape what a test can tell you. Ads only appear to people on ChatGPT's Free and Go plans; Plus, Pro and Enterprise subscribers see none. And because you can't see the triggering conversations, you can't tune the ad the way you would prune search terms in Google Ads. Ads Manager will tell you clicks and cost. What those people did next is in your landing page data and your enquiry records.

How do you measure a first ChatGPT ads test in Europe?

You measure a ChatGPT ads test in the places you already trust: enquiries, bookings and orders, matched to the clicks you paid for. OpenAI offers a browser pixel and a Conversions API for tracking. In the EU, a marketing pixel is the kind of tag that sits behind your cookie banner, so every visitor who declines it disappears from the platform's report. Expect Ads Manager to undercount, and don't let it be the only judge.

A first test in Europe takes six steps:

1. Choose the account country with care. Guides to the European launch report that country, currency and time zone lock once the account exists. A business registered in Portugal sets up as Portugal.
2. Build one landing page for one offer. The page your ad links to should answer the question your ad is aimed at, in text a machine and a person can both read.
3. Tag the link. Add UTM parameters so paid ChatGPT clicks don't merge with the visitors ChatGPT already sends you for free.
4. Put the pixel behind consent. Add OpenAI's pixel through your consent tool alongside your other marketing tags. The Conversions API reports bookings from your server instead of the visitor's browser; it is worth the work only if your site already does the same for Google or Meta.
5. Set the budget and the stop date first. Self-serve has no minimum spend, so cap what you will spend, write down how many enquiries would make it worth continuing, and decide on a date to stop before the first euro goes out.
6. Count enquiries in your inbox or booking system. Save the UTM tag with each enquiry or booking, and ask "How did you find us?" on the form, so a booking from ChatGPT is marked as one even when the visitor declined cookies. That count decides whether you continue; the platform's report is a second opinion.

If your ads already run on Google or Meta and you can't yet say which ones produce enquiries, fix that before adding a third platform. A new channel inherits whatever your current tracking gets wrong.

The short version

Health, legal and financial services in Europe still can't buy ChatGPT ads. A guesthouse, a tour operator or a shop can, and the first test is worth running only with a page that a machine can read, that matches the ad, and that answers one question, judged by the enquiries it brings in.

We build those single-offer pages as part of our Conversion-First Websites service, and the plans page shows what each plan includes. If you're weighing a ChatGPT test and want a second opinion on the page it would land on, book a 30-min call.