Lexis+ with Protégé

Lexis+ with Protégé is the flagship legal AI platform from LexisNexis, rebranded from Lexis+ AI in February 2026. Protégé is the agentic AI assistant powering conversational research, document drafting, and analysis grounded in LexisNexis's legal content collection, which the vendor states holds more than 200 billion documents and analysis from over 5,500 authors, with Shepard's Citations validation. The May 2026 expansion introduced Protégé Work (a skills and orchestration layer that creates structured plans for multi-step legal tasks), Protégé Agentic Drafting (purpose-built drafting agents for contracts, motions, briefs, and deal documents), and Protégé Workrooms (secure collaboration spaces shared among firms, clients, and counterparties). The platform includes hundreds of pre-built workflows covering motions, discovery, transactional documents, and contract redlining, plus a no-code Custom Workflow Builder for firm-specific playbooks. Three core agent types operate within the system: a Legal Research Agent (decomposes prompts and grounds answers in legal authorities), a Web Search Agent (open-web context), and a Customer Document Research Agent (reasons across uploaded firm documents). Named customers published by the vendor include Gibbons, Rupp Pfalzgraf and Schenck Price. LexisNexis Legal & Professional is part of RELX and serves customers in more than 150 countries.

Lexis+ with Protégé integrates with Microsoft 365 (Word, Excel, PowerPoint, OneNote, Teams, Outlook), iManage, SharePoint, OpenText, and Google Drive. LexisNexis names OpenAI and Anthropic as its LLM partners, and added Mistral models to the France edition in July 2026, letting users toggle between legal-tuned and general-purpose models. Protégé Workrooms enable secure cross-firm collaboration with customer-held encryption keys (added May 2026). Voice-enabled interaction (launched March 2025) and a dual-mode design (Protégé Legal AI for authoritative workflows, Protégé General AI for flexible tasks) extend the platform beyond text-only interfaces. No MCP server or public developer API is published for Protege.

Pricing is quoted, with no public pricing page. LexisNexis states that pricing varies with organization size, the capabilities required and the scope of content access, and quotes come through its contact form or 1-888-AT-LEXIS. The product page offers a 2-day free trial alongside a Request a trial option.

Lexis+ with Protégé suits law firms and corporate legal departments that already work in the LexisNexis research ecosystem. Firms whose research runs on Westlaw and the Thomson Reuters stack should look at CoCounsel. Firms that want legal AI independent of any single research database should look at Harvey AI. Plaintiff personal injury firms should look at Eve, and teams focused on contract review and drafting in Word should look at Spellbook.

Current state Q4 2026: on August 24, 2026 LexisNexis added agentic capabilities that produce review-ready Word, Excel and PowerPoint outputs from one prompt, carry context between steps, let users pick a preferred model or take the default, and draft from documents selected in a connected document management system, with LexisNexis's own models due for preview later in 2026 and customer-created skills coming. In October 2026 it launched a Middle East edition with translation and summarization of case decisions across Arabic and English sources, and Mistral models remain specific to the France edition. RELX completed its acquisition of the French legal AI platform Doctrine on September 3, 2026, and LexisNexis announced a strategic alliance with EvenUp for personal injury firms on September 1, 2026. Two Forrester Total Economic Impact studies, both commissioned by LexisNexis, model ROI for law firms and corporate legal departments. LexisNexis states that customer data is never used to train its models, and its trust center lists SOC 2 Type 2, ISO 27001, GDPR, CCPA and HIPAA.