By 2026, there is no single "hallucination rate" for LLMs; accuracy depends...

https://www.scribd.com/document/1040257449/What-is-the-Columbia-Journalism-Review-citation-test-actually-showing-214602

By 2026, there is no single "hallucination rate" for LLMs; accuracy depends entirely on your yardstick. Benchmarks like Vectara’s HHEM measure grounding, while others focus on factual recall