Adam Piotrowski

"Hallucination" Is Not Enough: Why Legal LLM Benchmarks Should Measure "Correctly Grounded"

Legal benchmarks of large language models (LLMs) commonly report a "hallucination rate". The most influential operationalisation, by Magesh et al. (2025), decomposes factual hallucination into correctness and groundedness and labels a response as hallucinated when it is incorrect...