Transform your legal work

Lexis+ AI Legal Research Platform & AI Assistant

Make informed decisions faster, deliver outstanding legal work, and drive client value with Lexis+ AI.
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Lexis+ AI is a comprehensive legal research, drafting, and insights tool—with the added power of a generative AI assistant—that helps legal professionals accelerate their work with precision and accuracy.

AI Legal Document Review

Work with Greater Speed and Agility

Simplify time-consuming legal research, drafting, and document analysis with generative AI assistance that extracts, summarizes, and produces reliable insights in moments.

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Conversational AI Legal Research

Rely on Exclusive, Authoritative, and Accurate Legal Information

Support your positions and recommendations with grounded, current legal information—continuously tested by human subject matter experts.

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AI Legal Drafting

Deliver Outstanding Legal Work

Collaborate with your AI assistant in conversation to refine answers, adjust drafts, and extract insights.

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Amplify Your Impact with Protégé

Streamline new tasks and continue to fuel your exceptional work with Protégé, the next generation of the Lexis+ AI assistant.

Coming to Lexis+ AI and Lexis Create+ in 2025.

Meet Protégéicon

Work Confidently with World-Class Security and Privacy

Safeguard your data and knowledge with our private AI multi-model approach, backed with state-of-the-art LexisNexis security and privacy technology.

Privacy by Design

LexisNexis solutions are developed with privacy standards that ensure user activity and interactions data are kept private to the individual.

Private, Multi-Model LLM Approach

LexisNexis generative AI applies a private model that does share user interactions with third parties to improve their products. Our multi-model approach also prioritizes using the best model for each use case.

Secure Cloud Infrastructure

LexisNexis systems use commercial-grade cloud infrastructure from Microsoft Azure and Amazon Web Services to ensure secure deployment.

Who is Lexis+ AI For?

Lexis+ AI helps legal professionals across the public, private, and academic sectors accelerate and enhance their work.

Don’t see who you’re looking for? Contact us for a demo related to your unique needs.

  • Small law firms
  • Large law firms
  • Corporate legal departments
  • Government entities
  • Academic institutions

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At LexisNexis and RELX, we are committed to the responsible development of artificial intelligence that considers the real-world impact of our solutions. We take action to prevent the creation or reinforcement of unfair bias.

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AI is preparing the next generation of lawyers

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Research published by Stanford University's Center for Human-Centered Artificial Intelligence (HAI) concludes that Lexis+ AI significantly outperforms Thomson Reuters’s Ask Practical Law AI in several important measures.

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Frequently Asked Questions

What legal tasks can Lexis+ AI help me with?

Lexis+ AI delivers four key capabilities:

Conversational legal research simplifies complex and time-consuming legal research by enabling users to conversationally interact with Lexis+ AI, explore new insights, and ask for adjusted and refined output.

Legal document drafting instantly produces legal arguments, contract clauses, and client communications from a simple user prompt.

AI summarization functionality delivers case summaries in seconds with more content and capabilities coming soon.

Legal document upload and analysis capabilities enable users to rapidly analyze, summarize, and extract key insights from law firm, corporate or government legal documents.
LexisNexis leverages more than 2,000 technologists, data scientists, and subject matter experts to develop, finetune, and validate our AI solutions. LexisNexis has been developing and implementing the use of AI in our products for years.

Our search results rely on current, global, authoritative content with human legal experts in the loop in the development and improvement processes. This approach enables the ability to provide linked citations and references to our content for grounded responses.
LexisNexis Protégé is a personalized AI assistant that streamlines workflows and enhances productivity for legal and business professionals. It is uniquely tailored to each individual user and securely connected to their digital workflows in LexisNexis ecosystem, customer Document Management Systems, and partner applications like Microsoft 365.

Protégé is coming to Lexis+ AI in the United States in 2025. It will replace the current AI assistant experience, enabling new tasks, drafting capabilities, and analyses.
Lexis+ AI delivers trusted results with state-of-the-art encryption and privacy technology to keep data secure. Our implementation of LLMs is protected via our business relationships with commercial cloud vendors. None of our customers’ data is used to train the model.

LexisNexis LLM models are private and custom. None of the data that’s inputted is used to improve other organizations’ models. User queries or prompts are not used to inform responses for customers. Uploaded documents are purged at the end of each session and users can manage or delete their prompt conversation history.

Sign up for your Lexis+ AI 2-day free trial

Take the first step to transforming your legal work with AI-powered:
  • Conversational legal research
  • AI-assisted drafting
  • Document upload, summarization, and analysis

LexisNexis, a division of RELX Inc., may contact you in your professional capacity with information about our other products, services, and events that we believe may be of interest. You can manage your communication preferences via our Preference Center. You can learn more about how we handle your personal data and your rights by reviewing our Privacy Policy.