AI hallucination—the generation of factually incorrect or nonsensical outputs...

https://www.scribd.com/document/1013175958/When-Summaries-Lie-A-Case-study-of-Models-That-Summarize-Well-but-Fail-to-Admit-Ignorance-147755

AI hallucination—the generation of factually incorrect or nonsensical outputs by language models—remains a critical challenge in natural language processing