From the source
Z.ai introduced GLM-Legal, a legal-domain agentic model built on its GLM-5.3-Flash foundation.
The company reports a 19.2% all-pass rate on the Harvey LAB benchmark of real-world law firm workflows, an improvement of 12.5 percentage points over the base model.
The model also achieved parity with leading frontier systems on LegalBench and PLawBench.