ChatGPT Ads in the Czech Republic: experience, prices and limits

Czech businesses have been able to buy ChatGPT ads directly since 31 August 2026. In September, the first numbers came in from agencies, consultants and businesses. The results differ, and some of the data is not Czech at all. For every figure, we note who measured what, when and on what sample. We separate OpenAI’s official rules from practice.

For the general principles of paid advertising, see our separate article on how PPC campaigns work.

We start with the official framework. We cover account setup step by step in a separate guide.

Launch date and who sees ads

OpenAI announced⁠ that from 31 August 2026, advertisers in 31 European markets can buy ads self-serve through Ads Manager. The announcement does not name the Czech Republic, but the OpenAI help center⁠ lists it as Available. Your company must be based in one of the listed countries. According to RUJZL⁠, ads had already been showing in the Czech Republic since roughly 24 August 2026, at that time through OpenAI partners.

Ads are shown to Free and Go users, including logged-out ones. Plus, Pro, Business, Enterprise and Edu users see no ads, and neither do accounts of people under 18, according to Ads in ChatGPT⁠. In the EEA and Switzerland, ads are not personalized yet. Ads are selected based on the current conversation and basic context, meaning approximate location and language.

Minimum budget and spending rules

The daily campaign minimum is CZK 350 for an account in Czech crowns, EUR 15 for a euro account and USD 25 for a dollar account, according to OpenAI’s campaign setup guide⁠. The first Czech articles in early September reported that crowns were not available and billing was in euros (RUJZL). Conviu⁠ already runs its own account in crowns.

The daily budget works as an average over seven days. On one day, spend can reach up to twice that, and over seven days at most seven times the daily budget. The budget week runs Sunday to Saturday in the account’s time zone. With the CZK 350 minimum, that means up to CZK 700 in one day, at most CZK 2,450 in seven days, and roughly CZK 10,500 for the smallest 30-day test.

What you pay for

You pay for impressions through CPM, the cost per thousand impressions, or clicks through CPC, the cost per click. Conversion optimization is available through oCPC and, for eligible advertisers, oCPM. You do not pay for the conversion itself. See OpenAI’s billing guidance⁠.

You cannot change the campaign objective after campaign creation or the account’s country, currency and time zone after account creation. A different objective requires a new campaign. OpenAI recommends starting with a maximum CPC of USD 3 to 5. That guidance is geared to the US and does not distinguish regions, so it is not a Czech price. The auction is a relevance-weighted second-price auction, according to Ads in ChatGPT: the basics⁠.

Company verification and payment card

After you add a card, your bank may place a temporary authorization hold. It is not a payment. The expected amount is shown on the settings page, and the hold can stay visible for 8 days or longer, according to OpenAI’s help article Fakturace a platby⁠ (billing and payments). Proficio and Jakub Kaplan reported USD 100, but that is not a general rule. Company verification and account setup take days: Proficio⁠ reports 5 to 7 days. The OpenAI help center⁠ says the company review can take up to 7 business days.

The first text campaigns by Czech authors ran in September 2026, and the PLACEMENT figures include accounts from Slovakia. In sources reporting in crowns, a paid click cost roughly CZK 1.5 to 39, and up to CZK 43 on individual days on one account. Sources reporting in euros mostly show EUR 0.5 to 1.3, about CZK 12 to 32 at CZK 24.35 to the euro. Barbora Nemravová’s managed accounts went up to EUR 2. The table includes only Czech authors’ own data.

“No data” means the author did not publish the figure or it is missing from the verified source. The overall PLACEMENT CTR and the RUJZL CTR are our calculations.

Why early CPC results are not a reliable pricing benchmark

In sources reporting in crowns, a click cost anything from a few crowns to roughly CZK 40. The largest sample with a published average price, 802 clicks across two PLACEMENT campaigns, came to CZK 3. These small samples cover the first weeks and different industries, so they do not establish an average or a benchmark. A CZK 1.49 click on a travel website says nothing about an e-shop or a B2B business.

Watch out for the CZK 62 to 103 per click circulating on Czech blogs. Filip Farník points out that the figure was not confirmed at its source and differs from the measured samples (filipfarnik.cz⁠).

RUJZL ran eight ad groups with a EUR 0.10 bid and got not a single impression all day. Delivery started at around EUR 1.5. The agency sums it up: “With manual CPC, the bid is a ceiling, not the price,” and recommends bidding above EUR 1. Jiří Navrátil got a low-bid warning at EUR 0.50. Proficio puts a competitive CPC above EUR 1.95.

According to OpenAI, the bid_too_low warning is “guidance, not a serving restriction.” It also does not appear for 24 hours after you edit an ad group, so the absence of the warning does not prove your bid is competitive (OpenAI troubleshooting⁠).

There is no universal minimum bid. In France, a bid of around EUR 0.10 was enough, according to Alexandre Bougra of Kalyvox in Journal du Net⁠. The UK account of Andy Brice⁠ also got delivery with bids of GBP 0.07 to 0.15.

In Sklik, Seznam’s ad platform, a low bid mostly means less volume. In ChatGPT, it meant zero delivery for RUJZL. Jakub Kaplan counts it among three “silent killers” of a campaign, alongside a blocked OAI-AdsBot and an unverified company (jakubkaplan.online⁠).

Product ads from a feed

As of 24 September 2026, product ads from a feed were not delivering in the Czech Republic. RUJZL had been uploading a feed of more than 40,000 products since 4 September and got not a single impression in three weeks, while a control text campaign on the same account was running. On 24 September, OpenAI support confirmed that the feed was fine, with 43,000 products in the index, and that the issue was a country restriction.

According to Shoptet⁠, the Czech e-shop platform, many e-shops still have an empty feed or only a few products while they wait for OpenAI to fully open product matching in Europe. MarkMedia and Conviu say product ads cannot be launched in the Czech Republic. Marketing Makers say they rarely manage to get feeds running. OpenAI’s official documentation mentions no Czech restriction and has not published a list of countries for product ads.

Once product ads open, keep in mind that feed items expire after two weeks. The feed needs automatic refreshes via URL or SFTP, according to OpenAI’s guide to campaigns from product feeds⁠.

Custom audiences and personalization

OpenAI recommends avoiding custom audiences in the EEA and Switzerland until personalization is available. Audience inclusion requires at least 25,000 matched users. For Czech campaigns, leave custom audiences out of the plan for now.

Queries that triggered your ad

Advertisers cannot see the specific queries or conversations in which their ad appeared. OpenAI does not share chats or queries, only aggregated metrics: impressions, clicks, spend, CTR, CPC, CPM and conversions. Seven Czech authors confirm this.

Context hints⁠ are topic cues you add to an ad, and they do not replace a query report. According to OpenAI, they are not keywords, do not guarantee impressions and cannot be used to exclude topics.

OpenAI’s Ad Policies⁠ apply in version 1.6, dated 10 September 2026. In this initial phase, ads are “primarily limited to consumer segments.” The policies distinguish only between the US and “outside the US,” and the Czech Republic falls into the second group.

Outside the US, ads for health and financial services are “generally prohibited”, and ads for legal services are “currently prohibited”. Both the creative and the landing page must fall into an allowed category.

Even in an allowed category, ads do not appear in conversations about mental or personal health, in emotionally dependent or other sensitive situations, or in topics such as politics, weapons and self-harm (19 categories in total). Since version 1.6, OpenAI also reserves the right to reject an ad because of its own “business interests or competitive position.”

Policies have changed six times since March 2026 (v1.0 to v1.6). This section is accurate as of the article date; check the current version before planning.

Clicks in the ad interface and visits in your analytics differ. OpenAI explains⁠ the gap with page loading, redirects, cookie consent, browser blocking, UTM parameters and time zones. At PLACEMENT, the OpenAI interface reported 4 purchases while analytics showed 1. On two of five accounts, GA4 did not confirm the conversions.

In reports, check:

According to MarkMedia, Shoptet has no native ChatGPT Ads conversion tracking, so it must be set up via Google Tag Manager. PLACEMENT reports that ad costs were twice as high at night and used up half the budget on some accounts. One account’s CPC fell 57% in a week, but several things changed at once, so the drop could not be attributed to a single change.

Jiří Navrátil and Jakub Kaplan advise checking that OAI-AdsBot is not blocked in robots.txt or your firewall. OpenAI requires⁠ the bot to be allowed and lists blocking as a common reason ads do not work.

The few Czech cases cover the first weeks, and the authors themselves treat them as indicative. Czech data on conversion rate, CPA and ROAS from a larger sample is still missing. In the sources we reviewed, no Czech author has published an auditable ROAS. We cover server-side tracking for PPC in a separate article.

In the Czech Republic, advertising in ChatGPT is a test for selected offers, not a new performance channel.

Who ChatGPT ads are for

We see the first positive signals in the segments OpenAI’s policies target: consumer segments such as lifestyle, household and local services. The most concrete Czech evidence is PLACEMENT’s services data, with a cost per conversion of CZK 148 to 300, from an agency that sells advertising in ChatGPT. Michal Blažek of Marketing Makers saw a similar share of relevant B2B clicks as in Google Ads. Lucie Thiemlová places the channel in the consideration phase.

Test it if your offer is something people work through and compare in a conversation, and if you have budget to spare outside the channels that already work. If you have no reserve, stay with Google Ads and Sklik.

Who should wait

Michal Smetana offers a hypothesis, not a measurement: B2B decision-makers on paid plans other than Go do not see ads. He sums it up: “A cheap click does not mean a cheap customer.” In his view, a benchmark makes no sense yet (smetanartb.cz⁠).

Versus Google Ads, Sklik and Meta

The steps combine the documentation with what the first Czech advertisers learned.

1. 1
   Check your industryCheck it against policies v1.6, including your landing page.
2. 2
   Prepare your business details and payment cardCompany verification takes days. The card should match the account’s country and company; a card issued in another country may be rejected (OpenAI billing⁠).
3. 3
   Set up conversion tracking before launchSet up the pixel and UTM parameters; on Shoptet, use Google Tag Manager. The OpenAI pixel has consent set to true by default until your website sets it to false, so without that change it starts tracking before the visitor makes a choice in the cookie banner (OpenAI pixel⁠).
4. 4
   Allow OAI-AdsBotIn both robots.txt and your firewall.
5. 5
   Plan irreversible settingsThink through what you cannot change later: country, currency, time zone and campaign objective. New accounts may at first advertise only in their home country (OpenAI troubleshooting⁠).
6. 6
   Check targetingTomáš Khoder (khoder.cz⁠) warns that a campaign created in the interface targets the US by default, and there is no test mode.
7. 7
   Budget and bidThe minimum is CZK 350 a day on a CZK account, roughly CZK 10,500 for 30 days. Start with a bid of around EUR 2: RUJZL got zero impressions at EUR 0.10, delivery picked up at around EUR 1.5, and Jiří Navrátil paid EUR 1.29 on average with a EUR 2.50 bid. If the campaign isn’t delivering, check the bid first. Also keep an eye on overnight spend.
8. 8
   Don’t rename the brand mid-runChanging the Brand Name triggers a new review, and ads pause until it is approved (OpenAI account setup⁠).
9. 9
   Allow time for diagnosis“A two-week test won’t show anything,” says Jan Křelina of Proficio. RUJZL plans on 30 days and roughly a few hundred clicks for diagnosis. A longer test does not improve results by itself; it only gives you data for a decision.
10. 10
    Evaluate using analytics and CRMJudge the test by leads and revenue in your analytics and CRM, not by CTR and clicks in the ad interface.

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