Lexis+ AI

Lexis+ AI is LexisNexis's flagship AI-powered legal research platform, combining access to over 80 billion curated legal documents with conversational AI search, automated drafting, and practice-area guidance tools designed for law firms and corporate legal departments. It is best suited for mid-size to large legal organizations that need authoritative, citation-backed research integrated into daily workflows.

The platform builds on decades of LexisNexis content aggregation—spanning case law, statutes, regulations, secondary sources, and international legal materials—and layers modern AI capabilities on top. The conversational search interface, branded Lexis Answers, lets attorneys type questions in plain English and receive direct answers with pinpointed source citations rather than long lists of documents to manually review. Search Term Maps provide a visual highlighting system that identifies the most relevant passages within lengthy court opinions and regulatory filings, significantly reducing the time attorneys spend scanning documents.

Practical Guidance is one of the platform's most distinctive modules, covering more than 25 practice areas with step-by-step checklists, annotated forms, drafting templates, and practitioner notes. This bridges the gap between identifying a legal issue and taking action on it, which is especially valuable for attorneys working outside their primary practice area or junior associates handling unfamiliar matters.

Lexis+ AI also includes document analysis tools that automatically extract citations, arguments, and risk indicators from uploaded legal documents, as well as litigation analytics powered by the Lex Machina integration. These analytics provide data-driven insights into judge ruling patterns, opposing counsel track records, and historical case outcomes, giving litigators a strategic edge during case evaluation and settlement discussions.

The AI assistant add-on, Protégé, extends the platform with conversational research sessions that anticipate follow-up questions and surface related authority proactively. Protégé can also assist with drafting legal memoranda, client letters, and contract clauses with jurisdiction-aware suggestions grounded in LexisNexis's verified content library.

Integrations with Microsoft 365, Clio, NetDocuments, and iManage allow attorneys to access Lexis+ AI research directly within the tools they already use, while collaborative team workspaces enable shared research threads and annotations across practice groups. Enterprise plans include API access for custom integrations, usage analytics dashboards, and dedicated account management.

Key statistics: the platform indexes over 80 billion documents, covers 25+ practice areas with Practical Guidance content, includes 4,500+ templates and forms, and supports legal research across the United States, European Union, United Kingdom, Canada, and Australia. Shepard's Citations, the gold standard for legal citation verification, is fully integrated for real-time authority validation.