OpenAI says ChatGPT “reaches 1.2 billion people each week,” and it is building the commercial machinery to match. In a post on its own site, the company announced an image-based ad format, wider measurement tools for advertisers, and pilots that let outside firms check where ads land. The audience figure is OpenAI’s own; no independent count accompanies it.
The new format uses pictures to show a product, how people use it, or the experiences it makes possible. The first test happens while a user is generating an image: ask ChatGPT to draw something, and an ad may appear nearby. OpenAI’s promise is that ads will be “clearly labeled, and remain separate from the image being created.” A first cohort of advertisers begins “later this month” in the US. The post carries no date, so that phrase cannot be pinned to a calendar day.
The post is silent on several things a user would want to know. It does not describe what the label says or looks like, whether people can switch ads off, or whether ads will eventually show up beside text answers. Image generation is the cautious place to begin, because an ad next to a picture is easier to keep apart from an answer than an ad inside a paragraph of advice.
OpenAI frames the whole business as a matter of access. Advertising, it argues, helps “bring the benefits of AI to more people” and lets the company serve a market far larger than subscriptions alone could reach. That is a real argument, since ad revenue can pay for free users. It is also the sentence a company would write when opening a new sales channel, and the same paragraph pitches businesses on reaching people while they make decisions. Both readings fit the text. The post gives no revenue target and no figure for how many free users the ads are meant to support.
OpenAI also states that advertising “does not influence the answers ChatGPT provides.” The post offers no outside audit of that claim, so for now it is a promise.
Measurement takes up most of the post, because advertisers need proof the spending works. Hightouch, Tealium, and LiveRamp now connect to ChatGPT Ads so advertisers can feed in conversion data from systems they already run. Attribution partners include AppsFlyer, Adjust, Kochava, and Triple Whale, among others. On incrementality, meaning whether a sale would have happened anyway, OpenAI says its work is “still in its early stages.” It is running region-based experiments with Haus, Measured, and WorkMagic, comparing places that see ads with places that do not.
The early results come from those partners, not from OpenAI. DV Rockerbox put WeightWatchers’ attributed cost per acquisition 15.3 percent under what the brand pays on a blended paid-search basis. For the wellness brand Dose, WorkMagic reported a lift that cleared statistical significance, with 67 percent of incremental purchases from net-new customers. Triple Whale said 93 percent of Portland Leather’s visitors from ChatGPT Ads were new. Three brands, no spend levels, no sample sizes. And a new visitor is not automatically an extra sale.
Brand suitability is advertising jargon for a simple wish: companies want control over what surrounds their ad. OpenAI says its placement guardrails judge whether a conversation suits advertising and keep ads out of “emotionally vulnerable” or sensitive moments. Qualifying advertisers can now add Negative Phrases, a block list for their own brand rules. OpenAI is also piloting evaluations with DoubleVerify and Integral Ad Science, two firms that audit ad placement, in a controlled test setting that does not expose private conversations.
That last constraint is the odd part of selling ads in a chat product. On a social feed, the surrounding content is public and auditable. In ChatGPT, the surrounding content is a private conversation, so the thing an advertiser most wants to inspect is the thing users expect nobody to read.
For marketers, the first ninety days are an experiment: US-only, image-generation-only, invited advertisers. Compare any ChatGPT cost per acquisition against search on your own data before moving budget.
OpenAI, in its post “Building advertising for the way people use AI” on openai.com, which carries no publication date.
