OpenAI switches ads on inside ChatGPT on 24 August 2026 across 31 European markets. That covers the whole European Economic Area plus Switzerland. The rules differ from Google Ads more than they look at first glance.
I have been running ads inside ChatGPT since April 2026 on a US account. Roughly three quarters of a million CZK went through it in four months. The ratios, the tables and the five things that decide how a new account performs are in a separate article on managing ChatGPT Ads.
What OpenAI is switching on
Ads have run inside ChatGPT since February 2026, in nine markets so far: the US, Canada, Australia, New Zealand, the UK, Japan, South Korea, Mexico and Brazil. The European expansion is by far the biggest step.
| Item | Detail |
|---|---|
| EEA and Switzerland launch | 24 August 2026, 31 markets at once |
| Who sees ads | Free and Go plans; paid Plus, Pro and Enterprise do not |
| Advertiser access | OpenAI Ads Solutions, agency and technology partners |
| Self-serve | Ads Manager due later in the summer |
| Targeting | Geo, custom audiences, contextual signals from the conversation |
| Measurement | OpenAI Pixel, Conversions API, third-party integration |
| Optimisation | Now conversions too, not only clicks |
Paid plans account for roughly 35 million of 900 million users. The remaining 865 million will see ads.
Consent works differently here, and it will show
This is the biggest departure from Meta and Google. In Europe, OpenAI builds personalised advertising on explicit consent, not legitimate interest. Users can withdraw it at any time.
Decline it and you still see ads. Contextual ones, assembled from the live conversation and a rough location, with no chat history involved. Advertisers never reach the content of conversations.
Two consequences follow:
- Personalised audiences will start small. You already know your own consent rate from your cookie banner. Expect a similar order of magnitude, not US numbers.
- Contextual targeting will be the main channel, not a fallback. Whoever works with the context their product gets mentioned in has the advantage. It is the same discipline as optimising for AI Overviews.
Three things that surprised me on the US account
- Bidding type is a one-way door. You set it when the campaign is created and you cannot change it afterwards, not even through the API. That account went through two full rebuilds because of it. Moving from clicks to conversions then cut CPC by 69 % and lifted CTR by 61 % on identical text ads.
- The auction floor is invisible. Thirty correctly configured campaigns delivered a single impression across a whole day, because they bid a target CPA of CZK 52. Raising it to CZK 416 produced 523 times the delivery the same day. The platform never flags it.
- Keywords do not win everything. Keyword ad groups had the highest CTR, but prompt context, a plain-language description of the person and their situation, bought clicks 16 % cheaper. One keyword per ad group lost on both counts.
The full breakdown with tables is in what managing ChatGPT Ads actually taught me.
Four steps for the next two weeks
You do not need to move budget anywhere. Preparing pays off:
- Sort out measurement. Without the pixel and the Conversions API you cannot evaluate the channel. Deploy them before you spend the first crown.
- Write down which conversations your product belongs in. Contextual targeting works with topics, not keywords. You want buying situations, not phrases.
- Set up a clean comparison. Incrementality, not last click. Otherwise you will kill the channel yourself after three weeks.
- Do not cut Google Ads or Sklik for this. ChatGPT Ads is an addition, not a replacement. Move half your budget into a new channel now and you lose revenue.
Where this is heading
Ads inside ChatGPT are not another display network. This is the first large ad system built on a conversation rather than a query. Shopping is moving the same way, which I covered in the article on agentic commerce.
Summary
- ChatGPT Ads goes live across the EEA and Switzerland on 24 August 2026. Every EEA market is in the first wave.
- Free and Go plans see ads, which is roughly 865 million of 900 million users.
- Personalisation runs on explicit consent. Contextual targeting will therefore be the main channel, not a fallback.
- The self-serve Ads Manager arrives after launch. Until then you get in through a partner only.
- Deploy the OpenAI Pixel and Conversions API before you spend the first crown. Your Google Ads GTM container will not cover it.
- What actually decides performance is in the practical breakdown of managing ChatGPT Ads.
Learn now how attention gets bought in this environment and you have a year's head start. Wait until it becomes standard and you pay prices somebody else set.
