# 圆周律πLex

- Category: Industry tools
- Official site: https://pilex.yzsdai.top/
- HTML: https://www.88z.ai/en/tools/lex
- Markdown: https://www.88z.ai/en/tools/lex.md

Local-first legal AI workspace: Clarify facts, verify citations, and draft docum

## What is 圆周律πLex?

Zhouyulv πLex is a local desktop AI workspace designed specifically for legal professionals.It integrates case material management, AI-powered analysis, source verification, and draft generation into a single application, helping lawyers and legal practitioners efficiently clarify case facts, organize evidence chains, and draft legal documents.

Co-developed by an independent developer and his lawyer wife, πLex adheres to the principle of 'AI handles organization and drafting, humans make decisions.' The tool supports major LLMs like DeepSeek, Zhipu, and Qwen, and also allows running models locally via Ollama.This ensures that sensitive case materials and conversations remain strictly on the user's computer, meeting the high privacy standards of the legal industry.

Beyond timeline sorting and document drafting, πLex features a rigorous citation verification mechanism.It connects directly to real databases such as Beida Fabao and Yuandian to retrieve laws and similar cases on demand, verifying each citation against the original text and marking its status.This approach eliminates AI hallucinations, ensuring every output is grounded in verifiable sources.

## Key features

- **Local Data Priva**：All case materials, chat logs, and work drafts are stored solely on the user's local computer.Supports running models locally via Ollama to ensure data never leaves the machine.
- **Real-Database Ve**：Citations for laws and similar cases are not based on model memory but retrieved on-demand from real databases like Beida Fabao and Yuandian.Each citation is verified against the original text and automatically marked as 'Verified' or flagged if inconsistent.
- **Smart Timeline &**：Automatically reads case materials to arrange dates and events chronologically, clearly marking missing segments and generating structured evidence indexes quickly.
- **Document Draft G**：Assists in generating first drafts of complaints, defenses, legal opinions, and other documents based on clarified facts, ready for user review and refinement.
- **List & Amount Re**：Extracts key data such as amounts, dates, and interest rates from materials into tables, allowing for intuitive visual comparison during reconciliation to reduce manual errors.
- **Flexible Model I**：Supports configuration of cloud APIs like DeepSeek, Zhipu, and Qwen, as well as local models, allowing users to choose based on confidentiality needs and cost preferences.

## How to use it

1. 1.Download and install the Zhouyulv πLex client for Windows (currently supported).
2. 2.Create a new case and import or select the folder containing case materials (you can start with the official demo case package).
3. 3.Configure your LLM API keys (e.g., DeepSeek, Zhipu, Qwen) in settings, or set up a local Ollama model.
4. 4.Ask the AI a question, such as 'Help me sort out this case,' and the system will automatically analyze the materials to generate a timeline and initial conclusions.
5. 5.Review the generated document drafts, evidence indexes, and legal citations.Click on footnotes to verify against original texts, then export or continue editing once confirmed.

## Where it fits

- **Litigation Case**：Quickly generate timelines and evidence indexes from messy materials to clarify case facts and identify missing evidence links.
- **Legal Document D**：Rapidly generate first drafts of complaints, defenses, or legal opinions based on clarified facts, significantly reducing writing time.
- **Law & Case Retri**：Real-time retrieval and verification of relevant laws and similar judgments while drafting, ensuring accurate citations with case numbers.

## Pricing and free quota

Pricing and any free quota follow the official site.

## Who it is for

- Practicing Lawyers
- Law Firm Paralegals
- Corporate Legal Counsel
- Legal Researchers

## FAQ

### Will my case data be uploaded to the cloud?

No.πLex is a local-first workspace, and materials and drafts are stored only on your computer.If using cloud LLMs, only necessary text snippets are sent for inference, and a fully local Ollama model option is supported.

### Which operating systems are supported?

Currently, the official release provides a Windows version (installer and portable).macOS and Linux versions are listed as 'Coming Soon,' so please check the official website for updates.

### Are the legal citations accurate?

Yes, highly accurate.πLex does not rely on model memory but retrieves laws directly from real databases like Beida Fabao and Yuandian.It provides original text comparison and verification markers to ensure every citation is verifiable.

## Tags

Legal Tech · Local AI · Document Generation · Evidence Organization

Features, pricing and availability follow the official site. Except for 88z.ai’s own API pages, this is a third-party product; 88z.ai only provides a directory introduction.