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

https://penzu.com/p/15c2697035b558ac

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