CrossLex: A Source-Grounded Benchmark for Cross-Jurisdictional Legal Reasoning in Large Language Models

arXiv:2608.01292 · cs.CL · Submitted 2026-08-02 · Read on arXiv

Xiaocui Yang, Xican Tan, Shoujie Chen, Shihan Xiao, Keke Tong, Xinyu Zhou

cs.CL

Submitted: 2026-08-02

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

Benchmark — 30× in this paper · explained in 2 episodes
Grounding — 12× in this paper · explained in 3 episodes
Accuracy — 10× in this paper · explained in 1 episode
Consistency — 8× in this paper · explained in 3 episodes
Grounded Joint — 6× in this paper
RAG — 6× in this paper · explained in 3 episodes
Verification — 5× in this paper · explained in 2 episodes
Adaptation — 4× in this paper · explained in 1 episode
Benchmarking — 4× in this paper · explained in 4 episodes
Large Language Models (LLMs) — 3× in this paper · explained in 8 episodes
Provenance — 3× in this paper · explained in 5 episodes
Core — 2× in this paper · explained in 2 episodes
Failure Modes — 2× in this paper · explained in 3 episodes
Papers — 2× in this paper · explained in 3 episodes
F1 Score — 1× in this paper · explained in 3 episodes
Frustration — 1× in this paper · explained in 3 episodes
Generative Model — 1× in this paper · explained in 2 episodes
Generative Models — 1× in this paper · explained in 3 episodes
Generator — 1× in this paper · explained in 2 episodes
Low-Rank Adaptation (LoRA) — 1× in this paper · explained in 13 episodes
Retrieval-Augmented Generation (RAG) — 1× in this paper · explained in 18 episodes