In 2026, there is no single "hallucination rate" for LLMs; it all depends on...

https://dibz.me/blog/facts-benchmark-scores-why-is-nobody-above-70-overall-1154

In 2026, there is no single "hallucination rate" for LLMs; it all depends on the yardstick you choose. Measuring performance via Vectara’s HHEM yields very different results than the HalluHard suite, often showing a 30