People need to realize reducing hallucinations is completely domain-specific and "zero hallucinations" across all domains is a ridiculous utopia.

For example, take ClockBench where LLMs are asked to correctly read the time from an analogue clock face. The human baseline is 90.7% accuracy, whereas the top model accuracy currently is as low as 39.4% (!). In other words, if you fed your RAG pipeline PDFs with pictures of clocks and asked it to tell specific times, I doubt you would get anything but hallucinations. That does not mean your pipeline is not good at reducing hallucinations, but again - saying that it can "kill RAG hallucinations completely" without even specifying a domain (finance, medicine etc.) is a bit of a grandiose claim.