Lexis+ AI
Lexis+ AI integrates generative AI capabilities directly into the Lexis+ ecosystem. Users can interact via a conversational interface to ask complex legal research questions, receiving summarized answers with citations linked back to LexisNexis's primary and secondary sources. It offers AI-assisted drafting capabilities for various legal documents like clauses, emails, and memos. The platform can summarize legal documents and analyze uploaded user documents (securely) to extract key information, identify arguments, or compare clauses. A key feature is its grounding in LexisNexis's extensive, exclusive content library and its integration with the Shepard's Citations service to verify the validity of AI-suggested authorities, aiming to provide reliable and hallucination-free results. Lexis+ AI includes Protégé, a personalized AI assistant with two modes: Protégé Legal AI (optimized for authoritative legal workflows) and Protégé General AI (for general tasks like brainstorming and client communication). In March 2025, LexisNexis introduced voice-enabled capabilities, allowing users to interact with Protégé using natural spoken language to perform tasks like asking legal questions, initiating drafting tasks, and requesting case law summarizations. Protégé also includes agentic AI capabilities that can autonomously complete tasks based on user goals, including reviewing its own work and identifying areas for improvement.
Key Information
Pricing
Model: Add-on subscription to the Lexis+ platform. Custom enterprise pricing.
Starting at: Not publicly disclosed. Requires contacting LexisNexis sales. Likely a premium add-on cost to a standard Lexis+ subscription.
Free Plan: Not Available
Trial: Not Available
Audience
Primary: Law firms (all sizes using Lexis+), Corporate legal departments, Courts and Government agencies.
Secondary: Legal professionals involved in research, drafting, litigation, and transactional work.
Use Case
Conducting legal research using natural language questions and receiving concise, cited answers; Quickly drafting standard legal documents or communications.
Pros & Cons
Advantages
- Significant time savings in research
- Drafting
- And summarization; Leverages trusted LexisNexis content; Shepard's integration enhances reliability; Conversational interface is intuitive; Secure handling of uploaded documents; Covers multiple core legal tasks.
Limitations
- Requires a subscription to Lexis+; Cost can be significant (enterprise pricing); AI outputs still necessitate careful human review and professional judgment; Performance can depend on the specificity of prompts and complexity of tasks; Primarily focused on research and drafting within the Lexis ecosystem.
AI Capabilities
- Generative AI (conversational search, drafting, summarization)
- Natural Language Processing (NLP)
- Machine Learning (ML - trained on LexisNexis data)
- Document analysis
- Information extraction
- Citation checking/validation (via Shepard's).
Integrations
- Deeply integrated within the Lexis+ platform itself (Shepard's, Practical Guidance/Practice Advisor, core search).
- Integration with Lexis Create+ for legal drafting in Microsoft Word, allowing voice commands within Word.
- Protégé is accessible within Lexis+ AI and can be used via voice commands directly within the platform.
- API access might be available for large enterprise clients.
Unique Features
- Grounded in LexisNexis's vast proprietary and authoritative legal content library
- Integration with Shepard's Citations for validating AI-suggested authorities (reducing hallucination risk)
- Secure environment for uploading and analyzing user documents
- Combines multiple LLMs and proprietary models
- Part of the established Lexis+ ecosystem
- First voice-enabled AI assistant in the legal industry (Protégé voice capabilities)
- Agentic AI capabilities for autonomous task completion
- Dual-mode Protégé: Legal AI for authoritative workflows and General AI for flexible tasks.
Disclaimer: Information accuracy is not guaranteed. Always verify details directly with the provider and consult with qualified professionals before making decisions. This tool is not a substitute for legal advice.