In 2026, "hallucination rate" is a vanity metric unless you know the test....

https://josuerwqt559.bearsfanteamshop.com/microsoft-copilot-citation-errors-at-40-can-i-use-it-for-research

In 2026, "hallucination rate" is a vanity metric unless you know the test. Relying on generic benchmarks is a gamble that ignores real-world context. When you compare scores from frameworks like Vectara HHEM, you see massive variance based on the domain