In 2026, "hallucination rate" is a useless metric unless you define your...

https://www.wall-bookmarkings.win/in-2026-there-s-no-single-hallucination-rate-for-llms-accuracy-depends

In 2026, "hallucination rate" is a useless metric unless you define your yardstick. Benchmarks like Vectara HHEM and AA-Omniscience measure wildly different failure modes, from simple citation misses to complex reasoning errors