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What is Westlaw?

Westlaw is a comprehensive legal research and analytics platform developed by Thomson Reuters for attorneys, legal researchers, government agencies, and corporate legal departments. The platform provides searchable access to case law, statutes, regulations, administrative decisions, and secondary legal materials used in legal research and litigation preparation. Its search technology allows users to locate relevant authorities through natural language queries, Boolean searches, citations, and subject-based navigation. The West Key Number System organizes legal principles into a structured classification system that helps researchers identify related cases addressing specific legal issues. Attorney-written headnotes and editorial summaries provide additional context for evaluating court decisions and understanding their legal significance. KeyCite enables users to verify the validity of cases, statutes, and regulations while reviewing citing references, subsequent treatment, and potential overruling risks. Westlaw Edge includes AI-assisted research that generates synthesized answers grounded in Westlaw content and links users to supporting legal authorities. Quick Check analyzes uploaded briefs and other legal documents to identify potentially invalid citations, overlooked precedents, and authorities that may weaken an argument. Litigation Analytics provides data-driven insights into judges, courts, attorneys, law firms, case outcomes, and damages to support litigation strategy and case evaluation. Additional capabilities include AI Jurisdictional Surveys, Statutes Compare, Regulations Compare, and precision research tools for investigating legal issues across jurisdictions. Westlaw Advantage extends the platform with agentic AI capabilities, Deep Research, litigation document analysis, and research workflows designed to help legal professionals move from finding relevant authorities to developing legal strategies.

What is LexisNexis Protégé?

LexisNexis Protégé is an artificial intelligence assistant that provides legal research, document drafting, professional analysis, and workflow automation capabilities across the LexisNexis product ecosystem. The platform combines generative AI, agentic task execution, and authoritative research content to support complex legal and business workflows. Protégé is integrated into Lexis+ with Protégé, Lexis Create+, Lex Machina, CourtLink, CounselLink+, and other specialized LexisNexis applications. Its legal research capabilities allow attorneys to investigate questions using primary law, statutes, regulations, secondary sources, and expert-authored Practical Guidance materials. Document drafting tools assist with preparing contracts, transactional agreements, litigation motions, legal briefs, complaints, and client correspondence. The assistant can analyze uploaded documents, summarize case materials, compare contractual provisions, and extract relevant facts from extensive document collections. Integration with Shepard's enables users to verify legal citations, review the treatment of authorities, and identify unsupported legal references. Protégé's agentic AI capabilities support complex multistep assignments, including legal research, document review, drafting, and structured analysis. Organizations can create and share reusable AI agent skills, collaborate through secure Workrooms, and store sensitive materials in document Vaults for ongoing analysis. The assistant integrates with Microsoft Word, Microsoft 365 Copilot, and document management systems such as iManage, SharePoint, and NetDocuments to connect AI workflows with existing organizational knowledge. Additional integrations extend Protégé into litigation analytics, court docket research, legal spend management, regulatory disclosure analysis, intellectual property research, and business intelligence applications.

Media

Media

Integrations Supported

Deadline Assistant
OpenAdapt

Integrations Supported

Android
Apple iOS
Lexis

API Availability

API Availability

Pricing Information

$75 per month

Pricing Information

Pricing not provided
Free Trial Offered?

Supported Platforms

SaaS

Supported Platforms

SaaS
Android
iPhone
iPad

Customer Service / Support

Web-Based Support

Customer Service / Support

Standard Support

Training Options

Documentation Hub

Training Options

Not specified

Company Facts

Organization Name

Thomson Reuters

Date Founded

2008

Company Location

Canada

Company Website

legal.thomsonreuters.com/en/westlaw

Company Facts

Organization Name

LexisNexis

Date Founded

1970

Company Location

United States

Company Website

www.lexisnexis.com/en-us/products/protege.page

Categories and Features

Legal

Not specified

Legal Research

Not specified

Personal Injury Law

Not specified

Categories and Features

AI Contract Review

Not specified

AI Legal

Not specified

Contract Analysis

Not specified

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