Anthropic AI sends fake murder tip to Philadelphia police

Artificial intelligence can write your emails, research complicated questions and even handle tasks while you're away.

But what happens when an AI system takes an action nobody intended? Philadelphia police recently got an unexpected answer.

An AI model developed by Anthropic submitted a fabricated eyewitness tip about an unsolved murder through a Philadelphia police website.

The submission happened during automated testing, and the model apparently believed it was generating an example interaction.

Fortunately, the tip was flagged as spam before reaching investigators.

However, the incident raises an uncomfortable question about what happens when AI agents interact with websites and public services without adequate safeguards.

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The incident involved PhillyUnsolvedMurders.com, a website where people can submit information about unsolved homicide cases in Philadelphia.

On July 18, 2026, an AI model submitted a tip claiming to have information about a killing.

According to Anthropic's October 9 report, the model was Claude Haiku 4.5.