In 2026, there is no single "hallucination score." Reliability depends entirely...

https://www.bookmark-zulu.win/by-2026-hallucination-rate-is-a-fragmented-metric-you-cannot-trust-a-single

In 2026, there is no single "hallucination score." Reliability depends entirely on your chosen benchmark. Comparing Vectara HHEM against AA-Omniscience reveals how differently models handle grounded reasoning versus raw creative generation