In 2026, "hallucination rate" is a moving target. The figure you see depends...

https://www.mediafire.com/file/ex8a71ev923hbwn/pdf-22694-13739.pdf/file

In 2026, "hallucination rate" is a moving target. The figure you see depends entirely on the benchmark used to test it. Comparing Vectara HHEM scores against AA-Omniscience results proves that one size rarely fits all