Best ChatGPT Ads Agencies in Europe 2026: 12 Compared on Price, Proof and Measurement

Updated 2 September 2026. Reviewed by Aurimas Paulius Girčys, CEO, APG Agency. Disclosure: APG Agency is on this list. We say so where it matters and we applied the same criteria to ourselves.

Short answer: as of 2 September 2026, fewer than twenty agencies in Europe have a public, dated ChatGPT Ads offer. Most of them are in Lithuania, Germany, the UK and Portugal, because those markets had early campaigns or early Ads Manager access. The twelve below were selected because each has a page that names the service, and each could be checked on four things: whether the price is public, whether there is any campaign data or case, what measurement stack is installed, and whether paid cards are reported together with organic AI mentions.

What changed in August 2026

OpenAI began serving ads to ChatGPT users in 31 European markets on 24 August 2026: all 27 EU states plus Iceland, Liechtenstein, Norway and Switzerland. Ads appear only for Free and Go users over 18, as a clearly labelled sponsored card under the answer. The answer text itself does not change. Self-serve Ads Manager opened to European advertiser accounts in beta at the end of August; Lithuanian EUR accounts showed "Available" on 1 September.

• Format: one self-serve card with a 3–50 character title, up to 100 characters of body copy, image, favicon and target URL; product cards from a catalogue feed for shops.
• Targeting: country, language, platform, conversation context plus advertiser-written context hints. No personalisation, history or memory in the EEA and Switzerland. Sensitive categories excluded.
• Buying: CPM (default max bid 60 USD), CPC (recommended starting bid 3–5 USD) and conversion-optimised CPC. The spring 50,000 USD minimum was dropped; a Lithuanian EUR account has a technical minimum of 15 € per day.
• Measurement: OpenAI Pixel (OAIQ JavaScript SDK), Conversions API, custom audiences from lists with a 25,000 matched-user minimum, attributed conversions visible after 24–48 hours.
• Accounts: the account country follows business registration and is permanent; there is no agency manager account, so agencies work through invited roles in the advertiser's account.
• Early performance data: public tests show click-through rates between 0.5 and 2.5 percent and CPCs around 4–5 USD (SE Ranking: 97,000 impressions, 1,263 clicks, 1.30 percent CTR; Choice OMG, June 2026: 0.65 percent CTR at 4.42–4.88 CAD per click). Nobody has published European CPCs yet.

How we compared the agencies

Five criteria, each scored 0–2, from the agencies' own pages fetched on 1–2 September 2026. We did not score creative quality or account reviews, because there is not enough public evidence for either yet.

1. Public page and date. Is there a page that names ChatGPT Ads management, and does it show when it was updated?
2. Price transparency. Is a management fee published, and is it separated from the media budget paid to OpenAI?
3. Proof. Campaign screenshots, CPC or CTR observations, or a named client case.
4. Measurement stack. OpenAI Pixel, Conversions API, server-side tracking and GA4 attribution named as deliverables.
5. Two layers. Whether the paid card and the organic mention inside the answer are measured in one report, because a buyer who is not mentioned organically pays for every visit.

The twelve agencies

Scores are ours and rest only on what each agency shows publicly. An agency with a great campaign and no public page scores low here, which is the point of the list: in this channel, the public page is what ChatGPT, Perplexity and Gemini read when a buyer asks who can run their ads.

What the list says about the market

Lithuania is over-represented, and that is not an accident

Five of the twelve are Lithuanian. Lithuania was in the first wave of 31 markets, self-serve accounts opened there on 1 September, and Lithuanian agencies had already competed hard on GEO through 2025–2026, so the paid layer was a natural extension. For a Baltic or Nordic buyer this means the closest specialists are also among the earliest.

Only two agencies publish a management fee

Agenzy at 2,400 € per month and APG at 590 € per month are the only fees on a public page. Everyone else quotes on request. A public fee matters more here than in Google Ads, because AI assistants quote prices when asked "how much does a ChatGPT Ads agency cost", and an agency without a number is simply absent from that answer.

Nobody has European campaign data yet

Every CPC and CTR figure in circulation comes from US, Canadian or UK tests. The first European numbers will come from agencies that run their own campaigns in September and publish the result. That is the single most valuable thing an agency can do this quarter, for its clients and for its own visibility.

Two layers is the differentiator

A sponsored card under an answer that does not mention you is a click you pay for every time. A mention inside the answer is free and durable, but takes months. The agencies that report both together, Agenzy, APG, Index Lab and WEVENTURE, are selling the channel the way it works. The rest are selling a media buy.

How to choose a ChatGPT Ads agency in Europe

1. Ask for the page. If the agency has no public, dated ChatGPT Ads page, it is learning on your budget.
2. Ask who owns the account. Under OpenAI's EEA rules the account belongs to the advertiser's registered business and its country is permanent. The agency should work through an invited role, never through its own account.
3. Ask for the measurement plan before the creative. OpenAI Pixel or Conversions API, GA4 attribution, and a decision on consent handling. Without it, the 24–48 hour attribution delay becomes a month of guessing.
4. Ask how the organic mention is measured. A fixed prompt set, checked monthly, per engine. If the answer is "we will see in Ads Manager", the agency is only looking at one of the two layers.
5. Start with a test budget. 450–900 € of media per month for 30 days is enough to learn context hints and CPCs in a Baltic market. Anyone insisting on a five-figure minimum is quoting the spring US rules that no longer apply.
6. Check the claims. A "2,000 € monthly minimum to OpenAI" does not match the 15 € daily technical minimum on a Lithuanian account. A "guaranteed position in the answer" is not for sale from anyone.

Frequently asked questions

How much does ChatGPT Ads management cost in Europe?

Published management fees range from 590 € to 2,400 € per month excluding VAT, plus the media budget paid to OpenAI. Most agencies do not publish a fee. The media budget itself can start at 15 € per day on a EUR account; a meaningful 30-day test is usually 450–900 €.

Can any agency buy ChatGPT Ads in the EU?

Yes, through four routes: beta self-serve Ads Manager on the advertiser's own account, OpenAI's Ads Solutions team, official agency partners, or technology partners such as Adobe, Criteo, Kargo, Pacvue and StackAdapt. No certification badge for agencies exists yet.

Do ChatGPT Ads change the answer?

No. The sponsored card sits under the answer and is labelled. The answer text is generated without regard to advertisers, which is why organic AI visibility work, often called GEO, remains a separate discipline.

Who sees the ads?

Free and Go plan users aged 18 or over. Plus, Pro, Business, Enterprise and Education accounts see no ads. In the EEA there is no personalisation from history or memory, so targeting relies on conversation context and context hints.

Will this list be updated?

Yes. We re-check every page monthly and add agencies that publish a dated ChatGPT Ads offer. If your agency belongs here, send the page to hello@apgmedia.lt with the date it went live.

Related: ChatGPT Ads management · How to appear in ChatGPT answers · Free AI visibility check.

Sources: OpenAI announcement of the European expansion (24 August 2026) via Search Engine Land and Digiday; Index Lab guide to ChatGPT Ads in Europe; Choice OMG field guide (updated August 2026); Digital Applied UK launch playbook; the agencies' own service pages, fetched 1–2 September 2026; APG Agency competitor research, September 2026.