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

https://highstylife.com/is-multi-model-checking-worth-it-if-gemini-gets-contradicted-51-4-of-the-time/

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