AI hallucination benchmarks are inconsistent in 2026. Rates fluctuate wildly...

https://www.foxtrot-bookmarks.win/hallucination-rates-depend-on-the-yardstick-whether-you-measure-via-vectara

AI hallucination benchmarks are inconsistent in 2026. Rates fluctuate wildly across tests, proving that one size does not fit all. Even with web search, the HalluHard benchmark shows a 30.2% error rate. Don't trust a single score