ChatGPT ads timeline
Dated steps in ChatGPT advertising, each taken from OpenAI’s own pages or reputable press and linked to its source. Where we could not confirm a date or a claim, it is left out.
Our capture: logged-out ChatGPT, US, Oct 3–4, 2026Updated
Timeline
12 dated steps and our capture| Date | What happened |
|---|---|
| OpenAI said it planned to start testing ads in ChatGPT in the U.S. “in the coming weeks” for the Free and Go tiers, at the bottom of answers and clearly labeled; Plus, Pro, Business and Enterprise would not include ads. The same day it brought ChatGPT Go to the U.S. at $8 a month. Source: OpenAI: Our approach to advertising and expanding access to ChatGPT; CNBC, Jan 16, 2026: OpenAI to begin testing ads on ChatGPT in the U.S. | |
| OpenAI began rolling out a test of ads in ChatGPT in the U.S. for logged-in adults on the Free and Go tiers, starting with a subset of users. Source: OpenAI: ChatGPT release notes, Feb 9, 2026: Testing ads in ChatGPT (Free, Go); OpenAI Help Center: Ads in ChatGPT; TechCrunch, Feb 9, 2026: ChatGPT rolls out ads | |
| Criteo announced it was the first advertising technology partner integrating with OpenAI’s ads pilot in ChatGPT (Free and Go, U.S.). Source: Criteo, Mar 2, 2026: Criteo joins OpenAI advertising pilot in ChatGPT | |
| OpenAI began rolling out ads for Free and Go users in Australia, New Zealand and Canada. Source: OpenAI: ChatGPT release notes, Apr 16, 2026: Rolling out ads in Australia, New Zealand, and Canada | |
| AdExchanger reported, from a source who had seen them, that ChatGPT ads had begun appearing for users who were not logged in; OpenAI declined to comment. OpenAI’s Help Center now says ads shown in logged-out experiences are appropriate for all audiences. Source: AdExchanger, Apr 23, 2026: ChatGPT Ads Have Begun Showing Up For Logged-Out Users; OpenAI Help Center: Ads in ChatGPT | |
| OpenAI began rolling out a beta self-serve Ads Manager and added cost-per-click bidding next to CPM; it named Adobe, Criteo, Kargo, Pacvue and StackAdapt among its technology partners. (Date from Criteo’s release of the same day.) Source: OpenAI: New ways to buy ChatGPT ads; Criteo, May 5, 2026: An update on Criteo’s integration with OpenAI | |
| OpenAI’s Advertiser API added location targeting and conversion setup and reporting endpoints. Source: OpenAI developer docs: Ads API overview | |
| OpenAI began rolling out ads for Free and Go users in the UK. Source: OpenAI: ChatGPT release notes, Jun 4, 2026: Rolling out ads in the UK | |
| OpenAI’s Advertiser API added conversion-optimized campaign bidding. Source: OpenAI developer docs: Ads API overview | |
| OpenAI said ChatGPT Ads would expand to 31 European countries the following week; an update dated Aug 31, 2026 says self-service Ads Manager access is available across those 31 markets. Source: OpenAI: ChatGPT Ads expands across Europe | |
| OpenAI said it would start showing ads on ChatGPT’s Free and Go tiers in India. Source: TechCrunch, Aug 27, 2026: OpenAI to start showing ads on ChatGPT’s free and Go tiers in India | |
| Oct 3–4, 2026 | Our capture: 123,613 recorded conversations in logged-out ChatGPT from US connections, 118,765 ads shown after a follow-up message. See the data |
| OpenAI announced visual display ads that appear alongside images users ask ChatGPT to generate, to begin later in October in the U.S. with an initial group of advertisers. Source: TechCrunch, Oct 5, 2026: OpenAI launches visual ads that appear alongside image generation results |
How this data was captured
We used logged-out ChatGPT from US internet connections and started a new conversation for every question. Message 1 was the question. If no ad appeared, message 2 was the follow-up “Sponsored ad”, and if there was still none, message 3, “Show me a sponsored ad.”, was a last try. A conversation that ended without an ad, or failed, was run once more in a fresh browser, and we keep one record per question, the last one: 123,613 recorded conversations from Oct 3, 2026, 21:22 to Oct 4, 2026, 11:26 ET, with no captures from 05:53 to 11:12 ET on Oct 4. Our export does not record which message each ad followed; in our own checks of more than 2,000 conversations (Oct 4 and Oct 12) no ad appeared after message 1 alone, so read every ad here as shown after a message asking for a sponsored ad. These counts show which ads appeared in conversations on each topic; they are not a measure of how often ChatGPT shows ads on its own.
Only ads drawn on screen count as shown. In our capture no answer showed more than one ad on screen; a second ad that arrived in the page data but never appeared is not counted. Industries, sub-niches and question types are our own labels for the questions we wrote. Independent; not affiliated with OpenAI. Full methodWhy this is not an ad rateWhat the ads looked like
How does your brand show up in ChatGPT and AI search?
We look at the answers and ads shown for your category and where your brand appears in them.