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NOPE

NOPE · AI and people

AI incidents

Reports of AI-related harm and adverse experiences affecting people’s safety, wellbeing, rights and livelihoods. Explore what happened and the evidence available.

NOPE’s core concern is when AI communicates with a person, acts on their behalf, or depicts or impersonates them. The tracker is wider: it also records consequential decisions and claims about people. Each account is reviewed for publication; claims may remain uncorroborated or disputed. How we review and count cases

Explore incidents Our scope and evidence

In this selection

Published cases
1
Countries with reported events
—
Located 0 of 1 cases · 1 unknown
Languages in checked sources
—
Recorded for 0 of 1 cases
0Core concern
AI communicated, acted for, depicted or impersonated 0Contextual cases
AI made a decision or claim about someone 1Unknown or pending relation
1 legacy rows pending · 0 explicitly unknown

These figures describe the cases collected by NOPE. Coverage varies with discovery, reporting and available evidence. They do not estimate how often AI-related harm occurs.

0cases with a recorded lawsuit outcome 0cases with a recorded regulatory response 0cases involving minors

Response counts currently use each case’s principal recorded outcome. Further proceedings may be described in its account.

When events happened

0 cases without a known event year

Cases in this selection, counted once in their first known event year. A series may continue beyond that year. Reporting and collection dates are excluded.

1 2025
Reported severity High
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1 of 174 published cases

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1 Jan 2025 to 27 Aug 2025Event location unknownChatGPT

Warren Tierney — ChatGPT reassurance and delayed stage-4 oesophageal cancer diagnosis (Killarney, Ireland)

Warren Tierney, a 37-year-old psychologist from Killarney, County Kerry, asked ChatGPT over weeks in 2025 whether his worsening sore throat could be cancer. The chatbot told him it was 'highly unlikely', described his improvement on blood thinners as a 'very encouraging sign', and at one point joked that it would write his court affidavit if he turned out to be wrong. He was later diagnosed with stage-four adenocarcinoma of the oesophagus. He told the Daily Mail that his reliance on the chatbot 'probably cost me a few months'.

AI relation under review Legacy evidence assessment: credible Causal attribution: alleged High reported severity Media Coverage

Added 12/09/2026

Cases may have several effects and sources. Mixed accounts qualify when they include a reported harm or adverse experience. People are counted within individual cases where sources support a number; we do not publish a collection-wide total of distinct people.

A source’s existence, the experience it reports and AI’s causal role are separate questions. A lawsuit records allegations unless a subsequent finding establishes them.

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Last dataset update: 22/09/2026. Dataset available under CC BY 4.0.