Two new facts stand out:
1. 85% of hallucinated citations in preprints are also in the subsequent journal version (thanks, peer review!)
2. Fake cites more likely to use the names of (male) scholars who are already highly cited, creating a fake-citation Matthew effect.
arxiv.org/abs/2605.07723
Large language models (LLMs) are known to generate plausible but false information across a wide range of contexts, yet the real-world magnitude and consequences of this hallucination problem remain p...
