Coca-Cola AI ad fabricates J.G. Ballard book and quotes
Coca-Cola's "Classic" ad campaign used AI to identify literary mentions of the brand, but the system hallucinated a non-existent book by J.G. Ballard. The ad also misattributed translated interview quotes as the author's prose and misspelled his birthplace.
The campaign relied on AI to identify literary mentions but failed to perform basic human fact-checking on the results.
Key facts
- What
- Coca-Cola's "Classic" ad campaign used AI to identify literary mentions of the brand, but the system hallucinated a non-existent book by J.G.
- Incident date
- May 13, 2025
- Who
- Coca-Cola
- Failure mode
- Hallucination
- AI surface
- Search / RAG
- Severity
- Medium
What happened
Coca-Cola's "Classic" campaign used AI to scan literature for brand mentions, resulting in an ad that cited a fictional book titled "Extreme Metaphors" by J.G. Ballard. The ad presented translated interview quotes as Ballard's own writing and misspelled his birthplace, "Shanghai", as "Shangai". The errors were publicly flagged by the book's editor, leading to the ad's removal.
What broke inside the model
- 01 · TriggerA user asks for a fact, a citation, or a figure.
- 02 · Model stepThe model writes a fluent, confident answer.
- 03 · Control gapNothing ties the claim back to a real source.
- 04 · FailureA fabricated fact ships as if it were verified.
- 05 · ConsequenceThe false claim reaches a customer, a court, or the public.
Confidence holds, and even spikes, as the claim detaches from any source.
The campaign relied on AI to identify literary mentions of the brand but lacked rigorous human editorial oversight. This resulted in a hallucination where a posthumous collection of interviews was mischaracterized as a primary work by the author.
What it cost
Sources
- PressAn AI-powered Coca-Cola ad campaign mistakenly invented a book by a famous authorfortune.com
- PressCoca-Cola’s AI Ad Misattributes J.G. Ballard Worknews.designrush.com
- PressAI-powered Coca-Cola ad invents JG Ballard quotesaiaaic.org
Cite this entry
https://failureindex.ai/failures/coca-cola-fabricates-ballard-book-quotesAI Failure Index. "Coca-Cola AI ad fabricates J.G. Ballard book and quotes" (FI-0517). Realm Labs. https://failureindex.ai/failures/coca-cola-fabricates-ballard-book-quotes (indexed Jun 16, 2026).Data fields CC-BY 4.0, prose citation permitted. Incident ID FI-0517. Full dataset at /data.
Note from Realm Labs, the Index steward
How Realm would have caught this
- Prism
- OmniGuard
- AI Detection & Response (AIDR)
A runtime layer that watches the model's internal state can flag the moment a model commits to a claim it has no support for, and hold or reroute the response before it reaches a user. Realm reads those signals in real time rather than grading the transcript after the fact.