LawBench — Contract Intelligence
Draft contracts from a clause library, review them with AI across three dimensions, and evaluate every draft against rubrics.
▶ Try it liveLawBench is the heart of the Lex line (寻数·识律) — making law legible. It is FindData Technology’s contract drafting and review platform, backed by the line’s fine-tuned legal models and the law_db corpus served through the business MCP. It turns contract work into a measurable pipeline: generate a draft from a curated clause library, review it with multiple AI models in parallel, and score the result against reusable rubrics.
Contract generation
Drafts are assembled — not hallucinated — from a clause library grounded in Chinese contract taxonomy: the 19 typical named contracts of the Civil Code (买卖、租赁、服务 and more) plus the practical “China Contract Classification” system of 5,000+ template contracts across up to six taxonomy levels. Pick a contract type, a stance (which side you represent), and scenario tags, and LawBench assembles a complete draft with the right clauses attached.
Triple AI review
Every draft can go through a three-reviewer pipeline (LangGraph-orchestrated, three models in parallel):
| Reviewer | Dimension |
|---|---|
| Legal | accuracy and compliance of the clauses |
| Commercial | fairness of the deal terms for your stance |
| Completeness | missing clauses, undefined terms, gaps |
Each reviewer returns structured findings, so revisions target specific clauses rather than vague feedback.
Evaluation, not vibes
Reviews are graded. Rubrics (with per-criterion scoring), DeepEval metrics, and side-by-side prompt comparisons make drafting quality measurable and regression-testable — including a “harbor” of read-only reference rubrics.
Clause RAG & law references
A retrieval index over the clause library powers clause search and assembly, and per-contract-type surveys of applicable laws and regulations (with an aggregated, deduplicated law-reference index) keep drafts anchored to the actual legal basis.
Integrates as MCP
An MCP server exposes the platform as 52 tools — contract generation, rubric and prompt management, evaluation runs, clause search, law references — so AI agents (Claude, LibreChat, any MCP client) can draft and review contracts directly from a chat.
Try it
The Lex platform is live: open 识律.