Google's AI Overviews told users to put glue on pizza and eat rocks
Soon after Google rolled out AI Overviews in search, the feature surfaced dangerous and absurd answers: telling users to add glue to keep cheese on pizza and to eat a small rock a day. The answers came from the model treating satire and forum jokes as authoritative sources.
Asked how to keep cheese on pizza, the AI suggested adding glue; asked about minerals, it recommended eating a rock a day.
Key facts
- What
- Soon after Google rolled out AI Overviews in search, the feature surfaced dangerous and absurd answers: telling users to add glue to keep cheese on pizza and to eat a small rock a day.
- Incident date
- May 23, 2024
- Who
- Failure mode
- Hallucination
- AI surface
- Search / RAG
- Severity
- High
What happened
In May 2024 Google's AI Overviews gave viral wrong answers, including suggesting non-toxic glue to keep cheese on pizza and citing satire that recommended eating rocks. Google said the feature surfaced low-quality and satirical content as if authoritative, and scaled the feature back while it added guardrails.
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 system produced fluent, confident output with no grounding in any source. Hallucination is a property of how the model generates, not a bug in one prompt: the most likely next token is not the same as the true one, and nothing in the pipeline compared the answer against a source of truth before it shipped.
What it cost
Public ridicule; feature scaled back
Sources
- PressGoogle's AI tells users to add glue to their pizza, eat rocks (Live Science)livescience.com
- PressGoogle Explains Why Its AI Overviews Told Users to Eat Rocks and Glue Pizzas (Daily Beast)thedailybeast.com
Cite this entry
https://failureindex.ai/failures/google-ai-overviews-told-users-putAI Failure Index. "Google's AI Overviews told users to put glue on pizza and eat rocks" (FI-0044). Realm Labs. https://failureindex.ai/failures/google-ai-overviews-told-users-put (indexed Jun 3, 2026).Data fields CC-BY 4.0, prose citation permitted. Incident ID FI-0044. 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.