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AI legal research tool

Fast-track your legal research with Westlaw Advantage 

Gain deep insights and move seamlessly from research to strategy with the combined power of agentic AI and industry-leading content

Westlaw Advantage Deep Research report

Complete comprehensive, verifiable legal research with powerful tools

  • Deep Research — full investigations with sourced, verifiable reports
  • Litigation Document Analyzer — catches hallucinated cases and weak arguments
  • Claims Explorer — surfaces every claim relevant to your case
See all Westlaw Advantage features
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A solution for every legal professional

Law firms

Streamline complex legal research, accelerate analysis, and ensure your arguments are always backed by the latest, most reliable law.

 

Corporate legal departments

Quickly assess liability, survey laws across jurisdictions, and advise your organization with the confidence that comes from comprehensive, accurate research.

 

Courts and government agencies

Rely on the same trusted platform used by 94% of state courts — and courts across the U.S. federal court system — for authoritative answers and up-to-date legal content.

 

Transform your legal research workflows

Move from research to results — faster and smarter

Get the answers and strategic insights you need in real time with unmatched transparency so you can act decisively, knowing every angle is covered. Westlaw Advantage combines the latest in agentic AI with expert legal content, empowering you to build stronger cases with less manual effort.

50,000+

law firms and legal departments rely on Westlaw, including 80% of the Am Law 100.

6,000+

state government agencies — including courts in 94% of U.S. states — trust Westlaw.

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Frequently asked questions

Westlaw Advantage applies advanced agentic AI to formulate multistep legal research, leveraging trusted Westlaw content and proprietary tools to deliver comprehensive, transparent, and actionable answers.

Westlaw Advantage combines industry-leading editorial content, exclusive research tools, and advanced AI. Hundreds of attorney-editors maintain legal content to ensure unmatched accuracy and depth.

Yes. Litigation Document Analyzer goes beyond citation checks to identify mischaracterizations of the law, analyze arguments, and provide concise summaries to help you respond effectively.

Westlaw is trusted by law firms, corporate legal departments, courts, and government agencies — including 94% of U.S. state courts and the entire federal court system.

Yes. Westlaw Advantage offers comprehensive training resources and dedicated support to help you get the most from your subscription.

Westlaw Advantage is a transformative legal research solution that combines the capabilities of agentic AI with industry-leading legal content. With its Deep Research functionality, Westlaw Advantage operates like an expert researcher, providing you with accurate information so you can move quickly from research to strategy. 

Westlaw Advantage and Westlaw Edge with AI-Assisted Research both provide accurate and trusted answers to your legal questions based on expert legal content. Westlaw Advantage takes things a step further by employing agentic AI to conduct multistep processes without being prompted.