Research Integrity

Hallucinated citation

Also called: fabricated reference, AI-invented citation

A hallucinated citation is a reference that does not correspond to any real publication, typically produced when a large language model invents plausible-looking authors, titles, journals, and DOIs. As AI writing tools spread, these fabricated references are appearing in manuscripts, where they can pass a casual glance but fail verification.

Language models generate text that is statistically plausible rather than factually grounded, so when asked for supporting literature they can assemble a citation that looks entirely conventional, with real-sounding author names, a fitting title, a genuine journal, and even a well-formed DOI, none of which point to an actual paper. Sometimes real authors are attached to papers they never wrote, or a real DOI resolves to an unrelated article.

The problem is spreading as researchers use AI to draft literature reviews and introductions. Unlike a simple typo in a reference, a hallucinated citation is a claim of evidence that does not exist, which can mislead readers and, if uncaught, quietly degrade the literature. Editors have begun retracting or rejecting papers found to contain them.

Verification is the defense, and it is checkable. Every reference should resolve to a real record in Crossref, PubMed, or the publisher, with matching authors, title, and year. ManuscriptMind cross-checks citations against multiple bibliographic sources precisely to surface references that cannot be found or do not match their stated details.