Lexis+ AI

Fast, accurate generative legal AI—powered by Protégé™, the next-generation AI assistant that combines trusted Legal Research and Practical Guidance from LexisNexis
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What is Lexis+ AI? The All-in-One Legal AI Solution

Imagine legal AI so reliable, fast, and well-informed, it feels like your protégé.

With Lexis+ AI™, you get instant answers grounded in the UK’s most trusted legal sources, including Halsbury’s Laws, All England Law Reports, and Practical Guidance.

Powered by LexisNexis Protégé™, your next-generation AI assistant, it helps you move from question to confident advice in seconds—so you can meet deadlines, manage risk, and deliver stronger outcomes under pressure.

One Legal AI. Research, Guidance, Drafting.

AI Speed.
LexisNexis Standards.

Lexis+ AI delivers integrated research, guidance, and generative AI. Now so advanced, it’s no longer just an assistant. It’s your Protégé. It's your competitive advantage.

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Discover how Lexis+ AI helps you work faster

Example prompt of a user telling Lexis+ AI to draft an argument to seal their case before the Judge Jordan Lee

Not Just an Assistant. Your Protégé

Your personalised AI assistant. Smarter, faster and everywhere you work. Get the answers you need, when and where you need them.

User asks Protege, what positions have we adopted related to shared disposal for FTSE companies? Protege responds which source do you want to use to generate your response? Generate draft using Lexis+ content or generate draft using my firm's contracts?

Just Ask. Get Precise, Trusted Answers

With Lexis+ AI Ask, get instant, reliable answers grounded in exclusive LexisNexis content. No noise. No doubt. Just clear guidance, right when you need it.

Example prompt of a user telling Lexis+ AI, I respresent the Plaintiff in a negligence action against the city. Draft deposition questions for a witness based on the following facts from the complaint...

Draft Smarter. Deliver with Confidence

Lexis+ AI Draft combines powerful AI with trusted LexisNexis content to elevate your work. From drafting personalised documents to drafting from firm documents, it’s faster, sharper, and always accurate.

Summarise Instantly. Understand Clearly

Lexis+ AI Summarise cuts through complexity and turns legal documents into clear, digestible insights in seconds. Backed by trusted content. Ready when you are.

Upload. Analyse. Action in Seconds

Upload a document to Lexis+ AI and unlock immediate insight. Summarise, extract, question. This is AI built for how lawyers work.

Legal AI Tools With Trusted, Cited Sources

Leading Legal Content and Your Firm's Data.

Create full drafts, accelerate legal research and surface meaningful insights using both internal knowledge bases and industry-leading LexisNexis resources.

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Explore reliable legal AI sources for answers you can trust

User asks Protege, what positions have we adopted related to shared disposal for FTSE companies? Protege responds which source do you want to use to generate your response? Generate draft using Lexis+ content or generate draft using my firm's contracts?

Ask Questions of Firm Knowledge with DMS Integration

Ask legal questions based of firm’s documents. DMS Integrations include iManage, Netdocs, Sharepoint, and others.

Protege is prompting the user to Ask a question or use of of these tasks on their document with the options to ask what's missing or what's redundant. The user can also type in their own question, select their relevant jurisdiction, or click on more

Analyse Transactional Documents

Identify missing clauses, inconsistencies, and contradictions in contracts and other transactional document.

Legal Insight. Unmatched Intelligence

Lexis+ AI is powered by exclusive LexisNexis content you won’t find anywhere else. Imagine AI without it? Incomplete. For precise, trusted answers—there’s no comparison.

Search Primary and Secondary Sources

Search the most comprehensive collection of case law and secondary sources to surface accurate results.

Search Practical Guidance

Search the most comprehensive collection of case law and secondary sources to surface accurate results.

Read Law360 News

Stay up-to-date on breaking developments in the law and legal industry, all in one place.

Productivity Tools Powered by Legal AI

Work Smarter.
Deliver More.

Enhance your individual productivity with Lexis+ AI. A seamlessly integrated solution that connects your legal tasks with firm knowledge and trusted LexisNexis content, all in one place. Designed to help you work faster, think deeper and deliver even greater value.

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Learn how legal professionals use AI to drive smarter legal work

Smartphone with the AI assistant on the screen and the text select a legal task AI can accelerate for you now, or at any time by selecting AI Assistant. Then there are four buttons with the option to ask a legal question, generate a draft

Speak Naturally. Search Instantly

Use Lexis+ AI hands-free with Voice to Text. It’s fast, accessible, and tuned to understand a wide range of voices.

Example of suggested follow up questions to a previous interaction with the tool not shown in this visual. The first follow up question is what impact could a non-compliant name have on the LLC's ability to conduct business in Pennsylvania? The second que

Draft, Edit, and Perfect–All in One Place

Stay focused and in flow with Draft Mode. Refine documents using Lexis+ AI. No app switching, no distractions. Just smart, seamless drafting inside the Lexis+ experience.

Example of how a user would upload a document and prompt Protege to summarize the document or multiple documents

Summarise Complex Documents

Summarise uploaded legal documents to get up-to-speed faster.

A security badge with a lock saying we ensure optimal privacy protection by encrypting all documents. Also shows the functionality of uploading a new document and saving it to the vault.

AI That Adapts to You

With opt-in personalisation, Lexis+ AI learns your style and preferences—delivering more relevant, tailored outputs. Less rework. More control. A smarter, more personal way to work.

Example prompt of a user asking the Protege feature in Lexis+ AI to generate a timeline of events.

AI Prompting Made Easier

Advance your legal research efficiently with natural conversation, aided with prompt assistance to cover all relevant areas.

Create a Legal Database with Vault

Perform efficient AI-powered tasks on a collection of securely saved documents.

Generate a Timeline

Create a graphical timeline from documents in moments.

Start with Yours. Perfect in Draft Mode

Upload your own document and refine it with Lexis+ AI in Draft Mode. Adapt language, enhance clarity and improve structure—all without leaving your workflow.

Enterprise-grade legal AI, built for secure legal work

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

Responsible AI with Human Oversight

LexisNexis follows the RELX Responsible AI Principles to ensure that AI solutions are developed with human oversight and accountability, considering the real-world impact of the solutions and taking action to reduce bias.

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Private, Multi-Model LLM Approach

LexisNexis employs Privacy by Design principles to keep data and user information secure. Our generative AI applies a private model that does not share user interactions with third parties to improve their products. Our multi-model approach prioritises the best model for each use-case.

Secure Cloud Infrastructure

LexisNexis systems use commercial-grade cloud infrastructure from Microsoft Azure and Amazon Web Services Bedrock for secure deployment. Primary and back-up locations are in Europe.

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The Lexis+ Legal Ecosystem

Protégé extends the power of Lexis+ AI across research, guidance, drafting, and more, bringing it all together in one intelligent, seamless experience. Everything you need, all in one place.

Lexis® Create+

Lexis Create+ is an advanced legal drafting solution for Microsoft Word. With Lexis+ AI and Lexis Create+, your comprehensive, accurate drafting can take place in the application that aligns with your ideal workflow—connected by the Protégé AI assistant.

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Lexis+® Legal Research

Streamline your legal research with fast access to case law, legislation and expert commentary—all in one place. With powerful search, visualisation tools and seamless links to trusted sources like Halsbury’s Laws, you’ll get reliable answers, faster.

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Lexis+® Practical Guidance

Work more efficiently and with greater confidence using clear, practical guidance, expertly tailored for real-world legal tasks. With ready-to-use precedents, checklists, and tools, you’ll save time, reduce risk and deliver stronger outcomes for your clients.

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Frequently Asked Questions

You should trust the answers from Lexis+ AI because:

  • 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 generative AI in our products for years.

  • Our search results rely on current, authoritative content with human legal experts in the loop through the development and improvement processes. This approach enables the ability to provide linked citations and references to our content for grounded responses.

Lexis+ AI is a fully integrated, AI-enabled solution grounded in the largest repository of authoritative and exclusive legal content. It combines the power of AI with proprietary search technology to help legal professionals produce next-level work product and make informed decisions faster.

Protégé is the personalised generative and agentic AI assistant within Lexis+ AI that powers conversational search, insightful summarisation, intelligent legal drafting, and document upload and analysis capabilities. It’s tailored to each user’s preferences and can leverage both LexisNexis content and the user’s own documents. All Lexis+ AI users will now benefit from seamless access to the Protégé personalised AI assistant as a powerful new feature.

Protégé is designed with robust privacy and security measures in place to protect sensitive client information and ensure compliance with relevant data protection regulations. Users can review and manage their personalisation settings at any time, allowing them to adjust the level of personalisation or opt out entirely if desired. Furthermore, the data they share is not used to inform performance for other users. By putting the user in control and providing transparency around data access and personalisation settings, Protégé aims to strike a balance between leveraging the power of AI personalisation to enhance legal services and maintaining the highest standards of privacy, security, and user autonomy.

LexisNexis has always emphasised two critical AI development tenets: users are in control of personalisation, and data they share is not used to inform performance for other users. With the Protégé, customers decide which personalisation services are enabled and whether personal work product is used to answer questions or draft documents. LexisNexis remains committed to providing the most secure and confidential AI experience for lawyers and with new capabilities to unlock a more personalised AI experience.

Finally, LexisNexis has a comprehensive data protection programme to safeguard customer information, including encryption, compliance with data protection laws, and regular security assessments and audits.

LexisNexis is considered a leader in data privacy best practices and has established data privacy principles, governance structures and control programmes designed to ensure that data privacy requirements are met, personally identifiable information is protected, and individuals’ privacy concerns are addressed across all jurisdictions where we operate.

Users can upload a collection of securely-saved documents to a personal repository called a Vault. Protégé uses the documents stored in your Vault as the source for AI-powered tasks such as generating timelines, finding citations, analysing counterarguments, or drafting documents. Protégé will also suggest tasks based on the documents uploaded to the Vault, further guiding your work.

  • Create up to 50 Vaults with 1-500 documents per Vault. All data is securely stored and encrypted.

  • Uploading 11 or more documents automatically prompts you to create a Vault. Vaults are retained until you decide to delete them, and you can add/remove documents from your Vault at any time.

  • Uploads up to 10 documents, not saved to a Vault, are automatically purged at the end of each session.

  • Results from Protégé Vault are retained for 90 days under "My Conversations" history.

Get a quote for Lexis+ AI—now with Protégé

Try Lexis+ AI’s powerful legal research, drafting, and insights capabilities—now enhanced with Protégé, the personalised AI assistant.

You will also become a Lexis+ AI Insider to keep you up to date with how AI can transform your legal work