Westlaw Advantage: Legal Research software
Fast-track your legal research with Westlaw Advantage
Westlaw Advantage is an AI legal research product from Thomson Reuters that pairs agentic AI with Westlaw's editorial legal content. It plans and runs multistep research on a legal question, then returns a report with the sources behind each answer. It is aimed at law firms, corporate legal departments, courts and government agencies that want research they can verify and turn into case strategy.
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Westlaw Advantage
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What Westlaw Advantage does
Deep Research is the centre of the product. It works through a legal question in several steps, shows the approach it took and delivers a full report with sources, so the findings can be checked before they are relied on. Litigation Document Analyzer reviews litigation documents beyond a citation check. It flags mischaracterizations of the law and cases that may be hallucinated, analyses opposing arguments and gives short summaries to help draft a response. Claims Explorer takes the facts of a matter and returns a list of claims to consider, so relevant claims are not missed. Thomson Reuters positions it for three groups: law firms doing complex research, corporate legal departments assessing liability and surveying laws across jurisdictions, and courts and government agencies. Thomson Reuters states that Westlaw is used by more than 50,000 law firms and legal departments, including 80% of the Am Law 100, and by courts in 94% of U.S. states. Hundreds of attorney-editors maintain the legal content. Westlaw Advantage is a separate product from Westlaw Edge. Training resources and dedicated support come with a subscription, and a free trial can be requested.
What it does
Westlaw Advantage core capabilities
Deep Research
Plans multistep legal research and returns a sourced report
Litigation Document Analyzer
Flags mischaracterized law and hallucinated cases in filings
Claims Explorer
Suggests claims to consider from the facts of a matter
Technical specifications
- Agentic AI for multistep legal research
Who it is for
Who Westlaw Advantage is built for
Target audience
- Large Law Firm
- In-House Legal Teams
Case studies
No case studies yet
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Pricing details
Westlaw Advantage pricing
Subscription plans are listed on Thomson Reuters' website, and a free trial can be requested.
Product videos & screenshots
See Westlaw Advantage in action
Product interface
Westlaw Advantage Interface
Comparisons
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Westlaw Advantage sources
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FAQs
Frequently asked questions about Westlaw Advantage
Westlaw Advantage is sold as a subscription. Thomson Reuters lists its plans on Westlaw Advantage's website and offers a free trial on request; prices are not shown in the product description itself, so the plan page or a Thomson Reuters representative is the place to confirm cost for a given team.
Thomson Reuters positions Westlaw Advantage for law firms doing complex research, corporate legal departments that assess liability and survey laws across jurisdictions, and courts and government agencies. Thomson Reuters states Westlaw is used by more than 50,000 law firms and legal departments, including 80% of the Am Law 100.
Yes. Litigation Document Analyzer goes beyond checking citations: it identifies mischaracterizations of the law and possibly hallucinated cases, analyses the arguments in a document and gives concise summaries, which helps a team prepare a response to opposing filings.
Westlaw Advantage is a separate Thomson Reuters product built around agentic AI. Its Deep Research feature plans and runs multistep research and delivers a full report with sources, and it adds Litigation Document Analyzer and Claims Explorer on top of Westlaw's editorial legal content.
Yes. Thomson Reuters says Westlaw Advantage comes with training resources and dedicated support to help subscribers get the most from the product, and new users can request a free trial before buying.
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