Lexis+ AI Legal AI for Drafting, Research, & Analysis

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Personalized legal AI for making informed decisions faster, delivering outstanding work, and driving value.
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Lexis+ AI® is a comprehensive legal AI solution for drafting, research, and insights.

It combines the power of Protégé™, a personalized AI assistant, with authoritative LexisNexis content to help legal professionals make informed decisions faster and deliver outstanding work.

General AI in a private, secure legal workspace

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AI Legal Drafting

Full legal document drafting 

Apply controls to customize, generate, and iteratively refine full transactional documents, as well as litigation motions, briefs, complaints, and client communications.

Start draftingExplore Protégé

Discover how Lexis+ AI delivers outstanding work

Example prompt in which a user asks Protégé to create a structured summary highlighting the strategy that led to a favorable outcome in this consumer protection class action lawsuit

Craft communications for both legal and non-legal stakeholders

Create a wide variety of communications and documents to support stakeholders and clients using Protégé General AI.

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

Draft personalized documents and correspondence

Go from blank page to first draft for full transactional documents, motions, complaints, legal arguments, memos, clauses, and correspondence in moments—personalized to your jurisdiction and preferred style.

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?

Draft from firm documents

Prompt Protégé to draft legal documents based on uploaded materials or through the document management system (DMS) integration.

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...

Prepare deposition questions

Draft thorough deposition questions in moments.

Examples of discovery requests a user might input into Lexis+ AI. First example is draft requests for production of documents. Second example is draft requests for admission. Third example is draft interrogatories.

Draft discovery documents

Easily draft discovery documents based on case material.

Vetted Legal Research Resources

Connect trusted sources, drive better results

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

Start researchingExplore Protégé

Explore how Lexis+ AI provides information 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 on firm documents. DMS integrations include iManage, 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

Analyze transactional documents

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

Button within the Lexis+ AI interface, indicating that a user can easily click it to Shepardize citations.

Shepardize® citations

Verify the status and treatment of legal references in research and drafts with Shepard’s® so that you can build a stronger case.

Prompt bar in the Lexis+ AI interface, in which a user has selected to prompt Protégé using General AI | GPT-4o model. The user has enabled web search capability. The instructions tell the user that they can explore new ideas, brainstorm – you decide.

Explore new ideas with web sources

Search the web to help contextualize legal findings within timely business, social, or regulatory trends.

Prompt bar in the Lexis+ AI interface, in which a user has selected to prompt Protégé using General AI | OpenAI o3 model. The instructions tell the user that they can explore complex ideas using this model. The user can also attach files or use additional tools.

Strategize and break down complex legal problems

Clarify problem components before strategizing, drafting, or pursuing related legal inquiries using Protégé General AI advanced reasoning and deep research capabilities.

Example response from Protégé where a user has selected Guided Research workflow. Protégé explains its thought process. I’ll start by explaining the topic … Next, I’ll research case law and statutes… To ensure accuracy, I’ll consult primary law… I’ll then review secondary sources… Finally, I’ll compile a well-supported answer…

Get to the highest quality with Guided Research

Collaborate with Protégé in real time through the AI Guided Research structured workflow, designed in collaboration with legal experts to arrive at the highest-quality responses to legal inquiries.

Lexis+ AI Productivity Features 

Streamline your work  

Power your individual productivity using the Lexis+ AI fully integrated solution that connects your legal work across firm knowledge bases and LexisNexis resources.

Start streamliningExplore Protégé

Learn how Lexis+ AI powers your productivity

User is choosing the AI configuration for Protégé. The user can select between Protégé | Legal AI | Multi-Model (Trusted Legal Answers, Protégé | General AI | GPT-4o (General Exploration), Protégé | Legal AI | OpenAI o3 (Advanced Reasoning), Protégé | Legal AI | GPT-5 (Strategic Reasoning)

Use the AI that fits your work

Quickly choose between trusted Legal AI or General AI to get the best support for whatever you are working on without compromising security or losing context.

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, summarize a case, and recent conversations.

Work anywhere with the mobile app

Access AI-powered legal questions, summaries, and drafts on-the-go.

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

Summarize complex documents

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

Generate Suggestions for a Legal AI prompt tool tip is shown. A user can select Generate Suggestions to “Jump start your creativity and save time with AI-suggested prompts tailored to your research.”

AI prompting made easier

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

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.

Create a legal database with Vault

Securely save a collection of documents to then perform efficient AI-powered tasks.

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

Generate a timeline

Create a graphical timeline from multiple documents in moments

AI-Generated Document Summary, with the Protégé AI Assistant logo.

Scan AI summaries for relevance 

Quickly determine the relevance of Administrative Codes, Agency Decisions, and News articles.

A list of the US jurisdictions, starting with US Federal, then Alabama, Alaska, Arkansas, California, Colorado, and continued. The user can download the survey of laws and regulations in each jurisdiction or expand rows to see the detail.

Create surveys of laws and regulations

Compare laws and regulations on the same topic across jurisdictions with a single prompt. Easily download the results.

Reliable, secure General AI for legal professionals

Lexis+ AI now offers both trusted Legal AI grounded in LexisNexis authority and powerful General AI for flexible drafting and exploration. Shepard’s® citation checks and LexisNexis security give you the freedom to draft, explore, and deliver with confidence.

Protégé | Legal AI

Trusted legal answers grounded in authoritative LexisNexis content, with Shepard’s validated citations. Powered by optimized AI models for legal accuracy and reliability.

Get your free trial

Protégé | General AI

A suite of AI models—GPT-5, GPT-4o, and o3 by OpenAI and Claude Sonnet 4 by Anthropic—built within the trusted LexisNexis ecosystem and supported by Shepard’s citation checks.

Discover General AI

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.

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.

Private by Design

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.

Secure cloud infrastructure

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

Firm data and LexisNexis resources

Lexis+ AI combines the power of Protégé, a personalized AI assistant with a vast repository of exclusive LexisNexis legal authority and firm documents.

Protégé logo against purple background

Protégé

Personalized AI assistant, securely integrated in Lexis+ AI. Now with Legal AI and General AI.

DMS Integration

Lexis+ AI DMS Integration acts as an intelligent layer that extracts information and insights from existing DMS systems documents, such as iManage, SharePoint, and others.
Legal Research logo against red background

Legal Research

Answer legal questions quickly and confidently with the comprehensive LexisNexis case law collection, editorial analysis, and data visualizations.

Practical Guidance logo against blue background

Practical Guidance

Complete work efficiently and effectively with industry-leading practice notes, checklists, annotated firms, and drafting tools across 20+ practice areas.

Document Analysis logo against teal background

Document Analysis

Compare and strengthen litigation and transactional documents using patented AI technology that extracts data from millions of similar documents and delivers on-point recommendations.

Litigation Analytics logo against lavender background

Litigation Analytics

Analyze and compare litigation track records of courts, judges, attorneys, and law firms.

AI-Generated Document Summary, with the Protégé AI Assistant logo.

Legal News Hub

Stay up-to-date on breaking developments in the law and legal industry, including Law360.

Shepard’s Citation Service

Use Shepard’s Citation Service to confirm the status and authority of legal references in your work.

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

Watch Lexis+ AI in action

The video promotes and describes the key functionality and benefits of the Lexis+ AI Mobile App for attorneys. The Lexis+ AI Mobile App is displayed on a smart phone device. The screen displays Ask a Legal Question, Generate a Draft, Summarize a Case, and Recent Conversation buttons on the home screen. Accompanying text announces: Take your practice on the go with cutting-edge AI technology.”  The App demonstrates that an attorney can enter “How does Florida define residency for tax purposes? and select a button to “Summarize the Case Authority” to produce a result. Text announces: Pose intricate legal queries and get insightful, verifiable responses with Shepard’s(R) Citation Validation instantly. The App demonstrates that it can define a detail of attorney-client privilege under Delaware Law in specific circumstances, with a citation linked. Text announces: Extract key points from recent case law on the go to stay informed and ready for any challenge. The App demonstrates that it can provide a concise summary of a specific case. Text announces: Get a jump start on writing briefs, arguments, motions, client letters and emails with well-structured drafts, saving valuable time and effort. The app demonstrates that it can draft a clause for a confidentiality agreement for a transactional matter. Text announces: Seamlessly access previous interactions and sync across devices for a personalized and connected experience without disruptions to workflow. The App demonstrates that you can easily select a Recent Conversations button to access your past interactions with the app, such as the ones described previously. Text announces: Download the Lexis+ AI Mobile App today and experience the power of Lexis+ AI, your legal Gen AI Assistant, anytime, anywhere. Two mobile devices are down, demonstrating that you can download the App from both the Google Play and Apple App Store. The LexisNexis and Lexis+ AI logos are displayed.
1 min watch

Work anytime, anywhere with the Lexis+ AI Mobile App

With the Lexis+ AI Mobile App, you can ask legal questions, summarize cases, generate drafts, and more on iOS and Android mobile devices. Learn how you can stay on top of your most urgent matters on-the-go.
The LexisNexis and Protégé logos appear, with the accompanying text, “Your personalized AI assistant.” The text appears: Drafting for Transactional Attorneys. The text appears: Draft full documents based on your past precedent… style preferences… and LexisNexis® content. The Welcome screen appears. The user clicks the Draft button. In the chat window with the AI Assistant Protégé, the user enters “Draft a standalone Work for Hire agreement for a content creator hired to contribute a creative work to a website.” Protégé is shown to be generating a response. The Drafting Mode screen appears, with the chat to the right and a full draft of the Work for Hire agreement to the left. The document scrolls, showing the length of what was generated from the prompt and the linked citations referencing the user’s organizations documents. The user highlights a section of the agreement and clicks a purple Suggested Action Button to “Expand” the text. The user then enters the follow up prompt “Make this language more pro-content creator.” Then the user clicks “Replace in my draft.” The text is replaced. The user then selects the button to download the document to Word and names the document. The user clicks download. A window in Word opens, with a Protégé Add-On window to the right. The text appears: Protégé adapts to jurisdiction rules, adapts to client needs, enhancing productivity and ensuring superior work quality. The logos appear. Visit LexisNexis.com/Protégé to learn more.
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Drafting for transactional attorneys in Lexis+ AI

In Lexis+ AI, you can easily create quality first drafts of hundreds of types of transactional documents, spanning numerous practice areas. Learn how you can draft a standalone Work for Hire agreement, adjust sections to more closely meet your goals, and export to Microsoft Word.
The LexisNexis and Protégé logos appear, with the accompanying text, “Your personalized AI assistant.” The text appears: Personalized Profile & Drafting Style. The Welcome screen in the Lexis+ AI platform appears. The Welcome message says, “Welcome Back, Jennifer.” The screen transitions to the Personalization Onboarding process, which asks “Would you like to personalize your Protégé™ experience?” The user clicks, “Yes, let’s proceed.” The Settings menu then appears. The user selects a Toggle Button that opts into “Personalize your experience.” Text announces: Adapts Output Based on Preferences. The User then enters their name, their role, then selects from 3 Drafting Style options: Dynamic, Expansive, and Focused. The difference between the drafting styles is then explained. Expansive response entails thorough explanation with extensive details and nuanced analysis. Focused response entails comprehensive reasoning and covers all key points effectively. The user then selects Preferred filters for jurisdiction and practice area in the Settings menu, with many options available for US Attorneys. Text announces: How will you personalize your Protégé? The logos appear. Visit LexisNexis.com/Protégé to learn more.
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Personalize your legal drafting experience

Through the Protégé AI Assistant in Lexis+ AI, you can now opt-in to personalization settings that help Protégé produce output that is most relevant to you. Learn how you can customize settings for your name, role, jurisdiction, and drafting style—and revisit these settings at any time.
Lexis Nexis intro presenting Protegé, your personalized AI assistant. Protegé Vault for litigators. Securely organize large case files, Securely analyze large case files. Automate repetitive tasks, Access advanced analytics. Upload seamlessly. Securely upload documents. Create a timeline. Retrieve case summaries fast. Retrieve case facts fast. Achieve optimal outcomes for complex cases. Visit lexisnexis.com/protege to learn more.
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Protégé Vault for litigators

With Protégé Vault, attorneys can securely upload case files and conduct analyses specifically built for litigators. Learn how you can use Vault to accelerate your case preparation and focus on outcomes.
LexisNexis intro presenting Protegé, your personalized AI assistant. Protegé Vault for Transactional Attorneys. Securely organize large case files, Securely analyze large case files. You can also identify discrepancies between documents, Draft emails to clients explaining them. Retrieve case summaries fast, Retrieve case facts fast. Keep client data 100% confidential. Achieve optimal outcomes for complex cases. Visit lexisnexis.com/protege to learn more.
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Protégé Vault for transactional attorneys

With Protégé Vault, you can securely upload documents and conduct analyses built specifically for transactional attorneys. Learn how you can use Vault to identify discrepancies between documents, retrieve summaries quickly, and more.
A user starts on the Protégé homepage within Lexis+ AI and clicks on the “Documents” section. They upload five legal documents: Answer Pleading Counterclaim.pdf, Anthony Allen Witness Statement.pdf, Anthony Leng Expert Report.pdf, Chen statement.pdf, and Expert Obviousness Report.pdf. After uploading, the user clicks the “Generate a timeline” button. A graphical timeline is automatically generated, displaying key events from the documents in chronological order. The user slowly scrolls through the timeline, emphasizing the sequence of events. At the end of the timeline, options to print, email, download, or copy the timeline are shown and highlighted. The user then focuses on a prompt box, indicating that follow-up questions about the timeline can be asked directly. The video concludes with a message that timeline creation with Protégé takes minutes instead of hours or days.
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Generate a timeline with Protégé

With Protégé in Lexis+ AI, you can quickly generate a timeline based on uploaded documents. Learn how you can use Protégé to create a graphical timeline of events and ask questions about the timeline or share it efficiently.
A user begins on the Protégé homepage and clicks on “Documents.” They upload two files: GROUPK1.DOC* and *GROUPK2.DOC. Protégé enables the user to draft discovery documents, such as requests for admissions, requests for production, and interrogatories. The user selects “Draft interrogatories.” Protégé reviews the uploaded files and prompts the user for necessary follow-up information. A question appears on screen: “Are you drafting Interrogatories to the plaintiff or defendant?” The user types “defendant” in the prompt box and submits the response. Protégé quickly generates a draft set of interrogatories. The user then selects “Open in Drafting Mode” to modify the interrogatories directly within the platform. The screen fades out to a closing visual.
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Draft discovery documents with Protégé

With Protégé in Lexis+ AI, you can draft discovery documents, such as requests for admissions, requests for production, and interrogatories. Learn how you can prompt Protégé to create a quality first draft and easily adjust to suit your needs.
A user begins on the Protégé homepage and selects the “Documents” tab. They upload a file named GROUPK`1.DOC. The user then selects Ohio as the jurisdiction. After the document uploads, the user clicks the “Shepardize your Citations” button. Protégé quickly returns Shepard’s analysis along with a graphical representation of how each citation has been treated. The user slowly scrolls through the results, highlighting the visual indicators of citation history. Next, the user clicks on the “View full results and analysis” button. This opens the Brief Analysis tool within Lexis+, showing all citation results in greater detail. The user highlights the “Cited in Your Documents” tab at the top of the screen and scrolls through the listed citations. To continue their research, the user navigates back to Protégé.
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Shepardize® citations with Protégé

With Protégé in Lexis+ AI, you can quickly analyze citations in drafts or uploaded documents using LexisNexis Shepard’s® Citation Service. Learn how you can upload documents, generate a graphical view of Shepard’s analysis, and examine each of the citations to ensure your document is rooted in strong precedent.
Video demonstration of LexisNexis Protégé General AI within Lexis+ AI. The walkthrough shows the user selecting Protégé General AI modes (GPT-4o). The user asks Protégé to identify weaknesses in an uploaded document, then asks how to explain a legal topic to a jury. The user explores the Shepard’s citation checker to see the linked sources for the response.
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Explore AI models securely with Protégé

With Protégé in Lexis+ AI, you can leverage powerful General AI models, enhanced with Shepard’s citation agents, to draft with greater control, explore broader topics, and tackle complex problems without leaving your trusted, secure legal workflow.
Business Impact

Lexis+ AI is transforming the business of law

The Business Impact of Lexis+ AI

In law firms and corporate legal departments, genAI is changing day-to-day workflows and how legal services are delivered.

Read the findings

Law Firms: 344% ROI of Lexis+ AI over 3 years

Forrester Consulting conducted a Total Economic Impact™ study of Lexis+ AI for large law firms, commissioned by LexisNexis in May 2025.

Read the study

How Gibbons and Rupp Pfalzgraf are driving client impact with Lexis+ AI

A strategic approach to AI has allowed these firms to increase caseload, focus on advanced analysis, and deliver exceptional value to clients.

Read the case studies

Corporate Legal Departments: 284% ROI of Lexis+ AI over 3 years

Forrester Consulting conducted a Total Economic Impact™ study of Lexis+ AI for corporate legal departments, commissioned by LexisNexis in June 2025.

Read the study

Trending resources

User is choosing the AI configuration for Protégé. The user can select between Protégé | Legal AI (Trusted Legal Answers), Protégé | General AI | GPT-4o (General Exploration), Protégé | Legal AI | OpenAI o3 (Advanced Reasoning), Protégé | Legal AI | GPT-5 (Strategic Reasoning)6 min read

Protégé Allows Legal Professionals to Use Both Legal AI and General-Purpose AI Models in Secure Legal Workflows

General-purpose AI models are now accessible within the security of the Lexis+ AI environment, changing how legal professionals can use AI in their daily practices.
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LexisNexis Protégé in Lexis+ AI delivers advanced capabilities that help legal professionals work collaboratively with AI, be more productive, and amplify their strategic impact.
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Case Studies: How Gibbons and Rupp Pfalzgraf Are Driving Firm and Client Impact with Lexis+ AI

A strategic approach to AI has allowed these firms to increase caseload, focus on advanced analysis, and deliver exceptional value to clients in a rapidly evolving legal landscape. Learn how by reading the case studies.
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LexisNexis Protégé is the new AI assistant that transforms legal work with the power of agentic AI.
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Our Commitment to Responsibly Developed Artificial Intelligence

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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4 Reasons Why Law Firms Need to Connect Their Legal AI Tool with Their DMS Platform

Learn how connecting Legal AI tools with Document Management Systems can revolutionize law firm efficiency and productivity.
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New Lexis+ AI App puts the power of legal AI in the hands of lawyers on the go 

Attorneys often must access their urgent work from home, court, client meetings, deal rooms, or on the road.  Learn how the Lexis+ AI Mobile App helps revolutionize the way lawyers work.
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AI is preparing the next generation of lawyers

Generative artificial intelligence is becoming an essential part of legal education and training at law schools as well as firms across the United States.
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The Legal Gen AI Buyers Guide

Apply this framework to inform your decision-making process in the selection of a legal generative AI legal solution.
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How Small Law Firms Are Using Generative AI To Make Productivity Gains

Discover how small law firms are leveraging Lexis+ AI to enhance productivity and efficiency.
Julie Chapman, Head of Legal at LexisNexis, details the company’s adoption of Lexis+ AI into their daily workflows and how legal professionals should embrace generative AI. 
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Case Study: Unlocking the Power of Generative AI at LexisNexis

Julie Chapman, Head of Legal at LexisNexis, details the company’s adoption of Lexis+ AI into their daily workflows and how legal professionals should embrace generative AI.
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Winning the Talent Wars with AI

Today’s attorneys want more than just compensation—they’re seeking forward-thinking firms with strong legal tech investments. Read the whitepaper that breaks down five ways AI is helping firms improve attorney experience, increase productivity, and build a reputation for innovation.

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 personalized generative and agentic AI assistant within Lexis+ AI that powers conversational search, insightful summarization, 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 personalized 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 personalization settings at any time, allowing them to adjust the level of personalization 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 personalization settings, Protégé aims to strike a balance between leveraging the power of AI personalization to enhance legal services and maintaining the highest standards of privacy, security, and user autonomy. 

LexisNexis has always emphasized two critical AI development tenets: users are in control of personalization, and data they share is not used to inform performance for other users. With the Protégé, customers decide which personalization 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 personalized AI experience.   

Finally, LexisNexis has a comprehensive data protection program 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 programs 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, analyzing 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.

General AI is AI that is not optimized for strict legal requirements. It can perform general-purpose tasks extremely well, such as drafting communications, structuring information, or analyzing text. General AI is a useful tool for legal professionals, as it can help them supplement legal research, drafting, and analysis.

Protégé now brings the power of General AI to the secure Lexis+ AI environment, so legal professionals can draft with greater control, explore broader topics, and tackle complex problems without leaving their trusted legal workflow.  Users can now choose from multiple configurations to suit to their needs.

Protégé now offers Legal AI, GPT-4o, OpenAI o3, GPT-5, and Claude Sonnet 4 configurations in Lexis+ AI.  

  • Legal AI is optimized for legal accuracy and blends multiple LLMs from leading providers for the best legal use-case. The multi-model configuration grounds all responses in LexisNexis content and includes Shepard’s citations.
  • GPT-4o is an OpenAI general-purpose model, known for its speed, natural tone, and broad capabilities. In this configuration, users can access web search capabilities and Shepard’s citation checks.  Responses are not grounded in LexisNexis content.
  • OpenAI o3 is OpenAI’s well-rounded and powerful reasoning model. It excels in math, science, coding, visual reasoning, technical writing, and instruction-following. In this configuration, users can access web search capabilities, Deep Research capabilities, and Shepard’s citation checks. Responses are not grounded in LexisNexis content.
  • GPT-5 is OpenAI’s flagship model, released in August 2025. In Protégé, the GPT-5 model is best for responses that require deep analytical thinking to support complex questions, strategic exploration, and refining arguments.  In this configuration, users can access web search capabilities, Deep Research capabilities, and Shepard’s citation checks. Responses are not grounded in LexisNexis content.  
  • Claude Sonnet 4 is Anthropic’s mid-tier Claude 4 model, optimized for speed, efficiency, long context reasoning, and precise instruction following. In Protégé, the Sonnet 4 configuration is best for producing thoughtful and well-structured responses to support everyday tasks, communication such as emails, business development, and brainstorming. In this configuration, users can access web search capabilities and Shepard’s citation checks. Responses are not grounded in LexisNexis content. 

Lexis+ AI pricing varies based on factors such as the size of your organization, specific capabilities required, and the scope of content access. LexisNexis offers customized pricing tailored to individual needs.

For detailed pricing information, contact LexisNexis directly by submitting your information on this page or calling 1-888-AT-LEXIS. LexisNexis can provide a quote based on your specific requirements and offer guidance on the most suitable subscription plan for your practice.

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

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

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.