OpenAI opened self-serve access to ChatGPT's in-chat advertising to UK businesses on 19 June 2026 - the first market in Europe to get it - following a pilot that started two weeks earlier. Until this year, this channel was enterprise-only: it launched in the US in February 2026 with a minimum spend of roughly $200,000 to $250,000 a month. That minimum was dropped in stages, first to around $50,000 a month, then removed entirely for self-serve access in the US in May, and the UK followed in June with no minimum at all.
The ads themselves are clickable sponsored links that appear beneath ChatGPT's answers, matched to what the conversation is actually about - not a separate banner or pop-up. They only show to logged-in users on ChatGPT's free and Go tiers; anyone paying for Plus, Pro, Business, or Enterprise sees no ads at all. UK and EU users have to actively opt in before they will see ads personalised to them specifically, otherwise they see a generic, contextually-matched one instead. OpenAI's stated position is that advertisers never see who saw an ad or what that person was asking ChatGPT - only that the ad was shown. On 7 July, OpenAI added the ability for advertisers to upload their own customer lists to target or exclude specific people, plus AI-generated draft ads. OpenAI has said Japan, South Korea, Brazil, and Mexico are next, though it has not confirmed when.
Why it matters if you run a business
This is a genuinely new advertising channel, not just another place to run the same Google or Meta ad. In under five months it has gone from six-figure-minimum, enterprise-only, to something a small UK business can test on a modest self-serve budget - right as more people start doing product research by asking ChatGPT rather than typing into a search bar. That timing is the opportunity: an audience that is forming a habit most businesses are not advertising to yet.
The caveats matter just as much as the opportunity, and are worth knowing before spending anything. Right now, advertiser categories are limited to lower-risk areas (household goods, local services, travel, entertainment, digital products, and education), so not every business is eligible yet. Expect immature reporting and unproven attribution - a month or two old advertising channel rarely has measurement tools mature enough to trust blindly. And because UK users must opt in before seeing a personalised ad, a meaningful share of the audience will only see a generic version early on. A small, cautious test - not a shift of budget away from channels that are already working - is the sensible way in.
Questions worth asking
- Does what we sell actually fall into the categories currently allowed (household goods, local services, travel, entertainment, digital products, education), or are we not eligible to advertise here yet?
- If we test this, are we prepared for reporting that is still immature, or will we judge it too harshly - or too generously - before the tools have caught up?
- Do we understand that many UK users will not see a personalised version of our ad unless they have opted in, and does that change what we would expect this channel to do for us early on?
Five months ago this required a $200,000-a-month minimum spend. Now a UK small business can test ChatGPT advertising on whatever budget it chooses - self-serve, no minimum at all.
Sources
- Digiday: ChatGPT ads land in U.K.
- Search Engine Land: OpenAI opens ChatGPT Ads Manager beta to UK advertisers
- Search Engine Land: ChatGPT Ads rolling out audience lists
- MediaPost: ChatGPT Keeps Rolling Out Major Ad Targeting Updates
- Digiday: OpenAI opens ChatGPT Ads Manager to the U.S.
Before you pay to show up in AI answers
Advertising inside ChatGPT is one path. Checking whether AI systems can even read and cite your site is another - and cheaper to start with. Try the free AI visibility check, or read Does ChatGPT recommend your business?.