Harvey vs Lexis+ with Protégé (formerly Lexis+ AI): pricing, features and which to choose

Harvey is an enterprise legal software company founded in 2022 by Winston Weinberg and Gabe Pereyra, according to TechCrunch’s account of its origin. Its March 2026 announcement said more than 100,000 lawyers across 1,300 organizations used Harvey, while the homepage later reported 3,500-plus legal organizations, 200,000-plus professionals, and use in more than 85 countries. In September 2026, Harvey announced $550 million in funding at a $15.5 billion valuation. The company’s March announcement said it had raised more than $1 billion in total funding. Harvey remains an active legal software company. Harvey targets law firms and corporate legal departments through an enterprise sales process. Its products combine legal assistance with shared document workspaces, rather than offering a consumer-facing legal-advice subscription.

Harvey organizes work across agents, Spaces, Vault, contract intelligence, research, and Command Center. A typical engagement starts with a user uploading documents or working in a connected workspace, then asking Harvey to analyze, compare, summarize, draft, or extract information. Vault is designed for querying large document collections, while agents route tasks across complex legal work. Shared Spaces bring firms, clients, and co-counsel into one workspace with governance and ethical-wall controls. Command Center gives administrators visibility into usage across teams, practice groups, and offices. Teams can keep reference documents in Vault and use workflows to repeat a structured task. The platform also offers a Word add-in, reducing the need to move contract drafting entirely into a separate interface.

The company's security page says customer data is not used to train models. Buyers still need to review retention, access controls, and deployment terms against their own confidentiality obligations before putting client documents into production. Harvey’s clearest advantages are its breadth of legal workspaces, model selection, custom agents, document collections, and administrative controls. Its main tradeoffs are opaque pricing, enterprise deployment requirements, reliance on external model providers, and the need for lawyers to check generated work. Clio Duo, Spellbook, LexisNexis Protégé, CoCounsel, Luminance, and Ironclad AI overlap with parts of Harvey’s legal-assistance category, although their product scopes differ. Harvey is the stronger fit for larger firms and in-house departments that need shared legal workspaces, custom agents, regional processing, and governance. Smaller teams should first confirm pricing, implementation effort, and required controls.

Lexis+ with Protégé is LexisNexis Legal & Professional’s legal AI workflow product, formerly called Lexis+ AI. LexisNexis says Lexis+ AI debuted in October 2023 as a generative legal research platform, followed by a second-generation release in April 2024. Protégé became generally available in the United States in January 2025, and the product was renamed Lexis+ with Protégé in February 2026. It serves law firms, corporate legal departments, government agencies, law schools, and individual legal professionals. Its central distinction is grounding responses in LexisNexis legal content, including Shepard’s citation data, while permitting approved use of a firm’s documents and work product. The product connects research with drafting, review, and matter-focused tasks.

A typical session starts with a conversational legal question, an uploaded pleading or contract, or a drafting request. The platform can search authoritative content, summarize a document, draft a motion or transaction document, suggest follow-up actions, and connect quotations to source material for checking. Protégé can recommend actions based on an uploaded file, generate timelines, draft deposition questions and discovery requests, and support Deep Research for complex issues. With explicit permission, it can draw on a document-management system and store large collections in Protégé Vault. Microsoft Word users can continue editing through Lexis Create+. Human review remains necessary, particularly for citations, facts, legal judgment, confidentiality, and final drafting decisions. Output quality also depends on the prompt, source material, and selected model.

The main tradeoff is authority and workflow integration against a less transparent buying process and the need for attorney verification. Lexis+ with Protégé competes most directly with Thomson Reuters CoCounsel Legal, vLex Vincent AI, and Harvey. CoCounsel Legal combines Westlaw and Practical Law content with research, analysis, and drafting. Vincent AI focuses on vLex content and multilingual legal work, while Harvey supports professional services workflows across research, drafting, and analysis. LexisNexis emphasizes model choice, Shepard’s checking, customer-controlled personalization, and encrypted handling, but it does not publish a simple self-serve price or a complete model-performance benchmark. Choose it when LexisNexis content, citation validation, document work, and firm controls matter more than transparent pricing.