Lü AIDuo
Lü AIDuo is a law firm knowledge management and legal AI platform launched by Peking University Law & Code. It includes modules such as knowledge base, intelligent search, Q&A, mock court and intelligent writing, complies with Level 3 of the Cybersecurity Level Protection (China), and is targeted at law firm teams.
Updated: 2026-10-26
What is Lü AIDuo?
LüAI Duo (Fabao LüAi Duo) is a law firm knowledge management and legal AI platform launched by Peking University Fabao, operated by Beijing Peking University Yinghua Technology. According to its official website, it is built on the architecture of "model + data + application", integrates large legal models and the Fabao database, supports the establishment of self-built knowledge bases, and provides core functions such as knowledge management, intelligent retrieval and question answering, turning knowledge collection, query and utilization into a one-stop intelligent platform. The official website also emphasizes that it meets the data security and privacy protection requirements of Level 3 Equal Protection, and integrates mock courts and intelligent writing. The platform is oriented to the accumulation and reuse of law firm knowledge assets, rather than just one-time question answering.
Who is it for?
- Lawyers and law firm teams who need to systematically accumulate cases and insights and transform personal experience into organizational assets.
- Legal practitioners who conduct legal provision search, similar case recommendation and case analysis to improve retrieval efficiency.
- For litigators who are preparing for court hearings and wish to simulate confrontations to refine their strategies, and exhaust the opposing party's arguments.
- Legal departments that value data security, require private knowledge bases and compliance protection to reduce the risk of leakage.
- Lawyers who undertake knowledge-intensive projects such as bidding and due diligence and hope to share and accumulate experience within the team to reuse experience and improve efficiency.
Key features
6Knowledge Management
Build personal and team knowledge bases with one click, supporting batch uploads, categorization and permission management to accumulate experience.
Intelligent Retrieval
Integrates nationwide legal information and the FABAO database, offering "General" and "Research" modes, and supports cross-database retrieval and source tracing.
Q&A Assistant
Natural language interaction, supporting legal provision search, similar case recommendation, case analysis and legal consultation, with references provided.
Mock Court 2.0
Based on the "model + data + workflow + role-playing" framework, it enables online simulated adversarial debates, anticipates counterarguments, and refutes defense strategies.
Smart Writing
Assists in generating legal documents, supports export to PDF and Word for easy sharing and archiving.
Security and Compliance
Adopts the Grade 3 Protection Level standard for data encryption and access control, and third-party models do not store or train user data.
How to use Lü AIDuo
- First, build a personal knowledge base and upload existing materials, use intelligent retrieval to verify the hit quality, and then promote it to the team.
- For Q&A and document generation, verify the original text and sources of legal provisions, and conduct a single-source check before official use to prevent citation errors.
- Pay attention to permission allocation for sensitive case data, enable private knowledge bases to reduce the risk of data leakage, and fulfill confidentiality obligations.
- The coverage of official models and databases, as well as the functions, may be adjusted.
- Please check the official website instructions before using important legal documents.
- When you start using it, it is recommended to first use the free quota to get the core workflow running smoothly.
- After confirming that the output quality meets your expectations, you can then evaluate whether it is worth upgrading to a paid plan.
Traffic & popularity
Data month Sep 2026
Lü AIDuo receives about 6.8K visits per month.
Monthly visits
12 monthsTraffic sources
- Direct36.6%
- Display ads34.4%
- Referrals14.1%
- Search13.3%
- Social1.6%
Top countries
- China92.8%
- Singapore2.8%
- United States2.2%
- Hong Kong, China1.6%
- Japan0.5%
Estimated from third-party traffic data.
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