API (pay as you go)
$0.37 input / $1.25 output per 1M tokensUsage-based, per million tokensCached input is $0.075 per 1M tokens; cached-input storage is free for a limited time. Official source 1 ↗
Reviewed tool profile
GLM-Legal
Z.ai's legal-domain model for contract review, evidence analysis and compliance research, on the GLM-5.3-Flash base.
Sources checked
- Pricing
- Usage-based API pricing in US dollars: $0.37 per million input tokens, $0.075 per million cached input tokens and $1.25 per million output tokens, the same as GLM-5.3-FlashX. Cached-input storage is free for a limited time. It is not part of the GLM Coding Plan. Official source 1 ↗ · Official source 2 ↗
- Available as
- Cloud API on the Z.ai platform under the model code glm-5.3-flashx-legal, with the GLM-5.3 parameters and a 1M-token context window; access is through a beta application. · Z.ai says GLM-Legal is coming to AutoClaw, its desktop agent platform, where edits land in Word documents as tracked changes; it is not there yet. Official source 1 ↗ · Official source 2 ↗ Official source 1 ↗
- Primary group
- Research & Data
Also consider
See all 2 similar tools ↓What it does
GLM-Legal (API model code glm-5.3-flashx-legal) is Z.ai's legal-domain model. It is built on the 320B-parameter GLM-5.3-Flash (18B active) with extra legal mid-training and reinforcement learning across tens of thousands of simulated legal tasks, so it can review contracts, connect evidence to a case theory and plan compliance work as an agent. Z.ai reports a 19.2% all-pass rate on the Harvey legal agent benchmark across 24 practice areas. It runs through Z.ai's API with a 1M-token context and is in beta: Z.ai invites law firms, legal tech companies and in-house teams to apply for access.
Official source 1 ↗ · Official source 2 ↗Features
- Contract review. Given a contract and the client's goal, it proposes specific clause changes, such as shorter termination notice, immediate exit after serious breaches and a transition-assistance period, instead of general advice. Official source 1 ↗
- Evidence analysis with citations. It reads a set of case documents, pairs external statements with conflicting internal records, cites the source documents by ID and keeps facts and inferences apart. Official source 1 ↗
- Cross-border compliance checklists. For a launch in several countries it breaks privacy rules into prioritised steps with statutory references for each market. Official source 1 ↗
- Chinese legal practice. Z.ai reports parity with leading frontier models on PLawBench, a benchmark of Chinese legal consultation, case analysis and document drafting. Official source 1 ↗
- Long documents, fast output. It inherits the GLM-5.3-FlashX setup: a 1M-token context window and output speeds of up to 200 tokens per second. Official source 1 ↗
Pricing & free limits
Billing details
Billed per million input, cached-input and output tokens in US dollars at the same rate as GLM-5.3-FlashX. Official source 1 ↗
The GLM Coding Plan subscription does not include the FlashX models. Official source 1 ↗
Free access & limits
Free access and its limits were not established by the checked official sources.
Best for & limitations
Law firms marking up client contracts, for example the exit and handover terms of a software services agreement. Official source 1 ↗
Litigation teams sorting dozens of documents in a dispute to find contradictions and build a case theory. Official source 1 ↗
In-house teams planning privacy compliance before launching a website in several Asian markets. Official source 1 ↗
Legal tech companies building their own legal agents on a domain-tuned model through the API. Official source 1 ↗
- Beta, access by application. GLM-Legal is in beta and Z.ai asks firms and practitioners to apply for API access. Official source 1 ↗
- Self-reported benchmarks. Z.ai's benchmark claims come from its own announcement; only the Harvey and LegalBench results were independently evaluated by Vals. Official source 1 ↗
- Not yet in AutoClaw. The Word-document workflow shown in the announcement depends on AutoClaw, where GLM-Legal is described as coming soon. Official source 1 ↗
- Still needs a lawyer's review. Z.ai frames the outputs as drafts for the legal team to review and negotiate, not final advice. Official source 1 ↗
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