MedFact: Benchmarking the Fact-Checking Capabilities of Large Language Models on Chinese Medical Texts
Researchers introduced MedFact, a Chinese medical fact-checking benchmark containing 2,116 expert-annotated instances designed to evaluate Large Language Models' ability to verify medical information and identify errors. Testing 20 leading LLMs revealed that while models can detect whether text contains errors, they struggle significantly with precise error localization and exhibit an "over-criticism" phenomenon where correct information is frequently misidentified as false.