Over 1,700 legal cases have involved AI-hallucinated facts, cases, and laws. Yet we know surprisingly little about how legal AI systems perform or the likelihood of error. "There's No Free Benchmark," led by
@NeelGuha and co-authored by Stanford HAI Senior Fellows Daniel Ho,
@JulianNyarko, and
@chrmanning, is part of a special feature in
@PNASNews on AI and the law: