The problem is the use case is where you don't care about the risk of hallucinations or you can validate the output without already having the data in a useful format. Plus you need to lack the knowledge/skill to do it more quickly using awk/python/perl/whatever.
I think text transformation is a sufficiently predictable task that one could make a transformer that completely avoids hallucinations. Most LLMs have high temperatures which introduces randomness and therefore hallucinations into the result.
