Lexis+ AI
by LexisNexis Legal & Professional
Lexis+ AI is a generative AI legal research and drafting service from LexisNexis. It combines conversational search, document summarization, drafting, and document analysis with linked legal authorities and LexisNexis content.
Why Abandoned
LexisNexis currently maintains an official Lexis+ AI product page and continues announcing product updates, including Protégé capabilities and international rollouts.
💵 Pricing & access
- Pricing model
- Not documented
- Starting at
- Not documented
- Official site
- Visit Lexis+ AI →
🩺 Health Signals
- HTTP Status
- 200
- Response
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- SSL
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- Confidence
- 98%
- Domain expires
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- Last content change
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- Last tweet
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- API status
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📅 Timeline
Lexis+ AI announced
LexisNexis introduced Lexis+ AI in the United States as a generative AI product for conversational legal search, summarization, document drafting, and document upload capabilities.
Commercial launch in the United States
LexisNexis announced the general availability of Lexis+ AI for U.S. customers following its commercial preview program.
Lexis+ AI expands to the United Kingdom
LexisNexis launched the commercial version of Lexis+ AI in the UK, adapting the service to LexisNexis legal content and workflows for the market.
Protégé personalized AI assistant introduced
LexisNexis announced Protégé, a personalized legal AI assistant within Lexis+ AI designed to support research, drafting, summarization, and analysis using customer-authorized content.
General availability of Protégé announced
LexisNexis announced broad U.S. availability of Protégé in Lexis+ AI and described expanded personalization, document analysis, drafting, and workflow capabilities.
🔄 Alternatives to Lexis+ AI
ChatGPT
🟢ActiveOpenAI's conversational AI assistant that sparked the generative AI revolution.
Bard / Gemini
🟢ActiveGoogle's AI assistant, originally Bard, rebranded to Gemini with multimodal capabilities.
Harvey AI
🟢ActiveHarvey launched in 2022 with a GPT-4-based product for case research, drafting, and document review tailored to elite law firms. Allen & Overy and PwC became flagship customers. By mid-2025 Harvey had raised over $500M across Sequoia, Kleiner, GV, and OpenAI's Startup Fund at a $5B+ valuation and counted most of the AmLaw 100 as customers. The product, team, and roadmap continue to grow.
Perplexity AI
🟢ActiveAI-powered answer engine that provides cited, real-time answers to complex questions.
🪦 Other dead Legal tools
BlackBoiler
🟡Acquired / MergedBlackBoiler developed AI-assisted contract review software that analyzed agreements against company playbooks and produced tracked-change redlines in Microsoft Word for legal teams and contract professionals.
Gavelytics
🟡Acquired / MergedGavelytics was a litigation analytics platform for U.S. state-court lawyers. It analyzed judicial rulings, motion outcomes, and court records to support legal research, case strategy, and business development.
ROSS Intelligence
🔴Shutdown / DeadROSS Intelligence was an AI-assisted legal research platform for lawyers. Founded in Toronto and later based in the United States, it ceased operations in 2021 amid copyright litigation brought by Thomson Reuters.
eBrevia
🟡Acquired / MergedeBrevia is contract-analysis software that uses natural-language processing and machine learning to extract provisions and data from legal documents for due diligence, contract management, and compliance workflows.
❓ Frequently Asked Questions
What is Lexis+ AI used for?
Lexis+ AI supports legal research, conversational search, case and document summarization, first-draft creation, and analysis of uploaded legal documents. Its answers can include links to supporting LexisNexis legal authorities.
Who makes Lexis+ AI?
Lexis+ AI is developed and sold by LexisNexis Legal & Professional, a division of RELX.
When did Lexis+ AI launch?
LexisNexis announced Lexis+ AI on May 4, 2023, and announced its U.S. commercial launch and general availability on October 25, 2023.
Does Lexis+ AI provide legal citations?
Lexis+ AI is designed to produce responses grounded in LexisNexis legal content and provide linked citations. Users should still verify cited authorities and generated text before relying on them.
Is Lexis+ AI still available?
Yes. LexisNexis maintains an active product page and has continued expanding Lexis+ AI through Protégé features and launches in additional markets.