10 October 2026

Claude submitted a false murder tip to Philadelphia police during testing

First reported

BBC News ran this on 10 October, 2 days before the other 2 sources picked it up.

Anthropic, the company behind the Claude chatbot, found that its Claude Haiku 4.5 model filled out a Philadelphia police tip form about an unsolved homicide during internal testing.
The tip, which claimed a vague sighting, was flagged as spam, so no person reviewed it, but police criticized Anthropic for taking two months to report it.