ChatGPT Ads adds 31 European countries and nears forty markets, ten weeks after running in five

On August 18, OpenAI said ChatGPT ads start showing the week of August 24 in 31 European countries. Nine are named in the announcement, Germany, France, Spain, Italy, Sweden, Norway, Denmark, the Netherlands, and Austria, with 22 more left unspecified. Ten weeks earlier, per our own June coverage, the channel was running as a test in just five countries: the US, Canada, Australia, New Zealand, and the UK. That's the number that matters more than any complaint about what's still missing: the pace. A channel that multiplies its footprint eightfold in two and a half months isn't behaving like a cautious pilot. It's behaving like something OpenAI thinks is working and wants to scale fast.

The market count multiplied by eight

The expansion speed is what should reset the math, not the fine print of what's still missing. In June, ChatGPT Ads was running as a test in five English-speaking markets. In early August it added Brazil and Mexico, with ads already showing to Free and Go users 18 and up, in an initial phase run alongside five agencies and with no self-serve access (we covered that in the Brazil and Mexico launch). Now, barely two weeks after that signal, the jump is to 31 European countries at once. The running total is closing in on forty markets in under three months since the channel was, strictly speaking, an English-language experiment.

That cadence is what a buyer planning quarterly budget can no longer file under "interesting, not urgent." Ad channels usually take years to clear the pilot phase and reach secondary markets. ChatGPT Ads is doing it in weeks. If the trend holds, the question for 2027 planning stops being "is this worth testing" and becomes "when does it get a reserved line item, and how big."

The number OpenAI chose to put on the table

Colin Fleming, OpenAI's enterprise CMO, told Adweek that ad revenue has "grown more than 25% since the start of August." That's a figure handed to the press, not an audited number broken out by market or format, so it deserves the same discount as any metric a platform reports about its own business: a directional signal, not an independently verifiable fact. Even discounted, though, it carries weight because it comes from the party that actually runs the ledger. Nobody measures ChatGPT Ads revenue better than OpenAI, and the timing, releasing that number right alongside the European expansion, suggests the metric is doing work to justify the pace of the rollout, not the other way around.

Put the two facts together, more markets and faster, plus double-digit revenue growth in the same month, and that's the thesis of this note. A new channel growing this fast in footprint and in reported revenue stops being exclusive territory for early adopters willing to experiment without guarantees. It starts earning its own line in planning, even in markets where it isn't live yet.

What this changes for anyone planning LatAm budget

Argentina, and most of Latin America outside Brazil and Mexico, still has no date for ChatGPT Ads. That didn't change on August 18: the expansion announced is European, not regional, and neither Brazil nor Mexico has self-serve access through Ads Manager yet (OpenAI's own page says that access "will follow later this summer," with no specific date). Self-serve staying closed is worth a line, not the headline: the recent expansion pattern, English-language test, then a large LatAm entry, then a full block of Europe in one move, suggests that when the channel does reach the rest of the region, it may arrive the same way Europe did, as one large jump rather than country by country.

What's worth having ready before that date, whenever it lands, isn't specific to ChatGPT Ads: server-side measurement and an attribution layer that doesn't depend solely on the platform's own dashboard. We wrote about measuring ads in ChatGPT in the context of the channel itself: when the only read on performance comes from whoever is selling the inventory, it pays to have a second source before moving real budget. That matters even more in a channel that, according to its own enterprise CMO, is growing revenue double digits month over month.

What we still don't know

There's no confirmation the revenue growth reported to Adweek holds beyond August, and no market-level breakdown showing how much of that number comes from the US versus everywhere else. There's also no date for self-serve access in any market, and none for the channel reaching Argentina or the rest of Latin America outside Brazil and Mexico. And the list of 22 unnamed European countries leaves open whether the real coverage includes large markets like Poland or Portugal, or whether the rest are small markets padding the "31 countries" count without moving much available budget. All of that can resolve in the coming weeks. For now, the strongest signal is the pace, not the detail.

Sources

This piece was developed with AI assistance and reviewed by the Zenda team. Any bad ideas are 100% ours.