OpenAI's Ad Pixel Tracks by Default, and European Shops Aren't Switching It Off
Claim-checked. Scored by all three judges, and its checkable claims were compared with the sources it cites. How far stories are checked
A Ciphercue scan of 341 retail sites, mostly European, found OpenAI's ChatGPT ad pixel sending a measurement event before any consent on 224 of them (66%); 104 held it back. OpenAI's documentation sets consent to true by default, and the install snippet has no consent call. In the authors' harness, oaiq("consent", false) before init suppressed measurement. The data covers one homepage load per site, and the decline test used one site. Anyone integrating the pixel in the EU or UK needs to add the consent gate.
Score
0.74total under rubric v2.0
- Significance0.65
- Reader interest0.85
- Audience breadth0.62
- Practical relevance0.83
- Substantiated0.91
- Technical depth0.88
- New information0.93
- Counts against: Promotional0.04
- Counts against: Overclaim0.29
Each judge’s answer per question (0–1), their mean and spread, and what the question adds to the score (weight × mean).
| Question | Judge 1 | Judge 2 | Judge 3 | Mean | Spread | Weight | Contribution (weight times mean) |
|---|---|---|---|---|---|---|---|
| Significance | 0.63 | 0.55 | 0.78 | 0.65 | 0.23 | +0.25 | +0.163 |
| Reader interest | 0.80 | 0.80 | 0.96 | 0.85 | 0.16 | +0.20 | +0.171 |
| Audience breadth | 0.47 | 0.67 | 0.72 | 0.62 | 0.25 | +0.10 | +0.062 |
| Practical relevance | 0.90 | 0.75 | 0.86 | 0.83 | 0.14 | +0.15 | +0.125 |
| Substantiated | 0.98 | 0.85 | 0.91 | 0.91 | 0.13 | +0.10 | +0.091 |
| Technical depth | 1.00 | 0.80 | 0.84 | 0.88 | 0.20 | +0.10 | +0.088 |
| New information | 0.94 | 0.85 | 0.99 | 0.93 | 0.14 | +0.10 | +0.093 |
| Promotional | 0.06 | 0.05 | 0.01 | 0.04 | 0.05 | −0.15 | −0.006 |
| Overclaim | 0.48 | 0.20 | 0.20 | 0.29 | 0.28 | −0.15 | −0.044 |
| Sum of contributions | +0.743 | ||||||
| Claim-check penalty | 0.000 | ||||||
| Total, as published | 0.743 | ||||||
Spread is the highest minus the lowest judge answer. marks a spread above 0.40: the judges disagree, and the story is marked contested.
Claim check
Claim check: 3 matches source · 3 no source given · 2 couldn’t check. Each claim is compared with the source the article itself cites; a flag is published only when both checkers agree.
No source givenNumber
Of 341 shops running OpenAI's ChatGPT ad pixel, 224 (66%) send a measurement event to OpenAI before any consent, while 104 (30%) hold it back.
The article gives no link or citation for it.
The article says “66% of 341 shops running OpenAI's ChatGPT ad pixel, most of them European, send a measurement event to OpenAI before any consent (224 sites”
The source says No source to compare with.
Couldn’t checkDate
OpenAI's advertising business expanded to more than 60 countries in late September 2026.
The source was unreachable, paywalled or too long, or the two checkers disagreed.
The article says “OpenAI's advertising business expanded to more than 60 countries in late September 2026”
The source says No passage could be compared.
Source cited by the article: openai.com/index/new-chatgpt-ads-format-and-measurement
No source givenQuote
OpenAI's documentation says the pixel initializes consent to true by default unless set to false or a stored denial is found.
The article gives no link or citation for it.
The article says “initializes consent to true by default unless you set it to false or the Pixel finds a stored denial”
The source says No source to compare with.
No source givenCausal conclusion
The pixel's default of tracking on, left unchanged by shops, is the common cause of pre-consent firing; calling oaiq("consent", false) before init suppressed all measurement events in the authors' tests.
The article gives no link or citation for it.
The article says “The common cause is the pixel's default. It ships with tracking switched on, and most of these shops never switched it off”
The source says No source to compare with.
Matches sourceNumber
In September 2025 the CNIL fined the operator of shein.com 150 million euros for placing advertising cookies before any banner interaction and reading them after users clicked "Refuse all".
The cited source says the same thing.
The article says “In September 2025, France's data-protection regulator, the CNIL, fined the operator of the fast-fashion site shein.com 150 million euros”
The source says “On 1st September 2025, the CNIL imposed a fine of 150 million euros on INFINITE STYLES SERVICES CO. LIMITED, the Irish subsidiary of the SHEIN group”
Source cited by the article: cnil.fr/en/cookies-placed-without-consent-shein-fined-150-million-euros-cnil
Matches sourceNumber
In November 2025 the CNIL fined American Express 1.5 million euros for cookies placed before choice, despite refusal, and after consent was withdrawn.
The cited source says the same thing.
The article says “In November 2025 the same regulator fined American Express 1.5 million euros for three failures”
The source says “On 27th November 2025, the CNIL sanctioned AMERICAN EXPRESS CARTE FRANCE, the French subsidiary of the AMERICAN EXPRESS group, with a fine of €1.5 million for non-compliance with the rules…”
Source cited by the article: cnil.fr/en/cookies-american-express-fined-eu15-million-cnil
Matches sourceNumber
In September 2025 the CNIL fined Google 325 million euros over how it steered people into advertising cookies.
The cited source says the same thing.
The article says “in September 2025 the CNIL fined Google 325 million euros over how it steered people into advertising cookies”
The source says “On 1st September 2025, the CNIL imposed a fine of 325 million euros on Google for displaying advertisements between Gmail users' emails without their consent and for placing cookies when…”
Source cited by the article: cnil.fr/en/cookies-and-advertisements-inserted-between-emails-google-fined-325-million-euros-cnil
Couldn’t checkNumber
The UK ICO's cookie-penalty ceiling is rising from 500,000 pounds to 17.5 million pounds, or 4% of global turnover, under the Data Use and Access Act 2025.
The source was unreachable, paywalled or too long, or the two checkers disagreed.
The article says “the ICO's cookie-penalty ceiling is rising from 500,000 pounds to 17.5 million pounds, or 4% of global turnover, under the Data Use and Access Act 2025”
The source says No passage could be compared.
Source cited by the article: ico.org.uk/about-the-ico/the-data-use-and-access-act-2025
Also covered by
No other coverage was clustered with this story.
Elsewhere
Elsewhere: HN 3 pts, not on front page
Recorded for context only, checked 24 Oct 2026, 08:53 UTC. It played no part in the ranking.