CHINAProduct launches
Z.ai launches GLM-Legal, a legal-specific model built on GLM-5.3-Flash
Chinese AI company Z.ai, known in China as Zhipu AI, launched GLM-Legal, a legal-domain large language model mid-trained and post-trained from its GLM-5.3-Flash model for contract review, evidence analysis and compliance research, Artificial Lawyer and MarkTechPost reported October 13, 2026. Access is through an application-only API beta, with no public weights or published pricing.
Announcement (MarkTechPost) → · Artificial Lawyer
Key points
- Z.ai said GLM-Legal adds legal-domain mid-training and reinforcement learning across tens of thousands of legal task environments.MarkTechPostArtificial Lawyer
- On Vals AI's Harvey Legal Agent Benchmark run, where tasks pass only if every rubric criterion passes, GLM-Legal scored 19.17% versus 6.67% for its base.MarkTechPost
- MarkTechPost said that score ranked seventh of 79 models on Vals AI's leaderboard as of October 12, 2026.MarkTechPost
- Z.ai claims parity with frontier models on LegalBench and the Chinese-focused PLawBench without publishing those figures.MarkTechPost
- The model is multilingual, and Z.ai plans to bring it to its AutoClaw desktop agent without giving a date.Artificial LawyerMarkTechPost
- Artificial Lawyer said the legal version is not intended, at least for now, to be an open-weights model.Artificial Lawyer
Sources2 articles across 2 outlets
Artificial Lawyer
MarkTechPost