In 2026, no single "hallucination rate" exists. Whether you use Vectara’s HHEM...

https://www.generate-bookmark.win/in-2026-hallucination-rate-is-a-vanity-metric-if-you-don-t-define-the-test

In 2026, no single "hallucination rate" exists. Whether you use Vectara’s HHEM or AA-Omniscience depends on your needs. One model might show 5% error while another hits 20%. Given $67.4 billion in annual data losses, choosing the right benchmark is vital