In 2026, "hallucination rate" is a vanity metric unless you define the test....

https://atavi.com/share/xujf75zu4l72

In 2026, "hallucination rate" is a vanity metric unless you define the test. It’s not one score; it’s a spectrum. A model might pass the Vectara HHEM check but fail the more rigorous AA-Omniscience benchmarks. With enterprises losing $67