In 2026, "accuracy" is a variable, not a constant. Hallucination rates swing...

https://www.save-bookmarks.win/hallucination-rates-aren-t-absolute-they-depend-on-the-test-whether-using

In 2026, "accuracy" is a variable, not a constant. Hallucination rates swing wildly between benchmarks like Vectara HHEM and AA-Omniscience. This inconsistency is why enterprises still lose an estimated $67.4 billion annually to unreliable model outputs