In 2026, there’s no single "hallucination rate" for LLMs. Accuracy depends...

https://hotel-wiki.win/index.php/Beyond_the_Headline:_Why_GPT-4o%E2%80%99s_64.4%25_Accuracy_Drop_Matters_for_Your_RAG_System

In 2026, there’s no single "hallucination rate" for LLMs. Accuracy depends entirely on how you measure it. Testing against the HalluHard benchmark might show error rates as high as 30