Open research on German legal data

We run gesetze.nulegal.eu — every federal statute and 487,000+ court decisions, searchable and free. This is where we publish what we learn from it: benchmarks you can re-run, papers put to the test, and statistics you can cite.

Latest finding

We put Google's search on 480,000 German court decisions and measured it

Google CSE and Vertex AI Search benchmarked against our retrieval stack on real user queries, 2,941 held-out case-law questions, and 116 landmark research questions. We win two of three, and the loss taught us the most.

Read the finding →

Findings

Our benchmarks and engineering reports — every number reproducible from the published harness.

Replications

Published legal-AI papers, tested on real German case law. Does the claim survive?

Data

Interactive statistics over the corpus — citable views, downloadable data.