Only 2 of 44 published ChatGPT ads case studies pass basic evidence checks. We scored every case we could find on 27 October 2026 against five tests: disclosed spend, disclosed dates, a business outcome, a result checked outside Ads Manager, and a comparison channel. Both cases that passed all five show ChatGPT ads losing to the advertiser’s own baseline. None of the 44 comes from an Arab market.<\/p>\n
Advertisers in Riyadh, Dubai and Cairo are now pitched ChatGPT ads with case studies attached. OpenAI announced on 16 September 2026 that ads were expanding to Saudi Arabia, the UAE, Egypt, Qatar, Kuwait, Bahrain, Jordan and Morocco. The case studies arriving in their inboxes were written for US and UK budgets. We wanted to know which deserve weight.<\/p>\n
The trigger was the UK trial. Agencies that joined it from June 2026 have started publishing what they learned, and their write-ups are mostly about setup rather than results.<\/p>\n
One UK agency’s review reports no CTR, no CPA and no ROAS at all, only platform guidance. A global network agency’s write-up in Campaign frames the trial as something to treat differently from paid search. Neither gives an advertiser a number to plan around.<\/p>\n
So we went the other way. Instead of collecting more claims, we graded the claims already public.<\/p>\n
We expected the strongest evidence to be the least flattering. Vendors publish wins. Advertisers testing with their own money publish whatever happened, and they have fewer reasons to stop measuring at the click. So a case showing the full chain from budget to sales should look worse than one that stops at the dashboard.<\/p>\n If a case study discloses spend, dates and a result checked outside Ads Manager, then it will report weaker ChatGPT ads performance than cases that do not.<\/p>\n Our working hypothesis before scoring<\/p>\n<\/figure>\n The hypothesis is falsifiable. If the fully documented cases had shown ChatGPT ads beating search, we would have published that instead. They did not, but the sample is small, and we say exactly how small below.<\/p>\n We scored 44 cases on five yes or no checks, using only what each published source discloses. Where a source was ambiguous, the case scored no. We excluded anonymous forum posts and any result that blended ChatGPT ads with Meta, Google or TikTok, because those cannot be attributed to ChatGPT ads at all.<\/p>\n The 44 cases came from two places. 30 came from the most complete public roundup we found, a compilation of 49 international cases by a Prague PPC agency, verified as of 29 September 2026 and updated 14 October.<\/p>\n The other 14 came from primary sources: five tests on a SaaS ads agency’s case study page, three anonymized cases from a ChatGPT ads agency, two OpenAI partner results published on 5 October 2026, three agency or advertiser reports we opened directly, and one trade press report.<\/p>\n The five checks:<\/p>\n We did not score whether the publisher sells ChatGPT ads, because many sources do not say. We recorded it where the page states it, and we report it separately.<\/p>\n Most published cases fail on verification, not on disclosure. 34 of 44 cases (77%) report a business outcome, but only 13 (30%) checked that outcome anywhere other than the ad platform. A result that lives only inside Ads Manager is the platform grading its own homework, and that describes 70% of the public record.<\/p>\nHow did we score each case?<\/h2>\n
\n
What did the scores show?<\/h2>\n
\n\n
\n \nCheck<\/th>\n Cases passing<\/th>\n Share of 44<\/th>\n<\/tr>\n<\/thead>\n \n Business outcome reported<\/td>\n 34<\/td>\n 77%<\/td>\n<\/tr>\n \n Spend disclosed<\/td>\n 23<\/td>\n 52%<\/td>\n<\/tr>\n \n Comparison channel<\/td>\n 22<\/td>\n 50%<\/td>\n<\/tr>\n \n Dates disclosed<\/td>\n 20<\/td>\n 45%<\/td>\n<\/tr>\n \n Checked outside Ads Manager<\/td>\n 13<\/td>\n 30%<\/td>\n<\/tr>\n \n All five checks<\/td>\n 2<\/td>\n 4.5%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n