GLM-Legal

GLM-Legal is Z.ai's legal AI model, built on GLM-5.3-Flash and trained for agentic legal work such as contract review, evidence analysis, and compliance research. The model received legal-focused mid-training followed by reinforcement learning across tens of thousands of legal task environments. According to Vals AI, it passes 19.17% of tasks on Harvey's Legal Agent Benchmark, up from 6.67% for the base model. API access is currently available through an application-only beta.