Factuality is the degree to which generated content accurately represents facts about the world. A large language model can produce convincing prose without ensuring that its claims are true. That difference matters when people use its output for professional work. section 5.8
An invented legal precedent
In Mata v. Avianca, an attorney used ChatGPT to prepare a brief containing references to lawsuits that had never occurred. He later told the judge that he had not realized the tool could produce false content. The plausible-looking brief did not make its supporting claims real. section 5.8
Check consequential claims against reliable sources before using them. This is especially important in fields requiring specialized knowledge, including law, medicine, and finance. Clearer expectations about what these tools can and cannot verify also matter. section 5.8
