Ask a large language model for a specific statistic, then ask where it found that number. More often than not, the citation it gives you doesn't exist. The model will hallucinate a plausible-looking reference, confidently present outdated conclusions, or simply make things up without any intern...
Source: [Dev.to](https://dev.to/mininglamp/what-is-rag-why-llm-memory-alone-is-never-enough-2e8d)