Artificial intelligence is ineffective and potentially harmful for fact checking

What about systems like pdfgpt and knowledge_gpt; that, in returning citations from the trained texts, might be useful for legal discovery with admissibility?

pdfgpt: https://github.com/bhaskatripathi/pdfGPT

knowledge_gpt: https://github.com/mmz-001/knowledge_gpt

Are LLM tools better or worse than e.g. meilisearch or elasticsearch for searching with snippets over a set of document resources?

How does search compare to generating things with citations?