Lexis+ AI

Hallucination-free AI legal research with authoritative LexisNexis sources

by LexisNexis

TrustKit ScoreRated across 5 compliance dimensions: data residency, legal jurisdiction, data retention, certifications, and regulatory fit.Strong

About Lexis+ AI

Lexis+ AI is the AI-powered legal research assistant from LexisNexis, one of the world's oldest and most trusted legal information providers. The platform integrates conversational AI directly with LexisNexis's vast legal content database—comprising millions of cases, statutes, regulations, treatises, and law review articles—to deliver substantively reliable legal research at speed. Unlike general-purpose AI tools that are prone to hallucinating case citations, Lexis+ AI explicitly grounds every response in real Lexis content. Users can ask complex legal research questions in natural language and receive answers with direct links to the authoritative sources that underpin each conclusion, enabling attorneys to verify citations with a single click. The platform includes Judicial Analytics, providing data-driven insights into judge behaviour, ruling patterns, and case outcomes to help litigators make better strategic decisions. Brief Analysis uses AI to evaluate the strength of arguments in uploaded briefs and suggests relevant case law that could strengthen or rebut the positions taken. LexisNexis is a division of RELX Group, a global information and analytics company headquartered in London. RELX is listed on both the London and Amsterdam stock exchanges (RELX PLC). LexisNexis serves law firms, corporate legal departments, government agencies, and academic institutions across more than 150 countries. Given LexisNexis's long history servicing courts, law firms, and regulators, the platform's security and compliance posture is robust. Lexis+ AI does not use customer data to train its AI models, maintains ISO 27001 certification, and is compliant with GDPR, CCPA, and professional responsibility rules across major bar associations. The tool is widely used by Am Law 100 firms and Fortune 500 legal teams.

Sentiment Score?

★ 4.4/ 5

G24.3/5(310)Capterra4.4/5(430)

TrustKit Score Breakdown

?84% Strong

Data Residency

Where is your data stored and processed?

Data hosted across US, EU, and UK data centres. Strong data residency options for law firms in major common law and civil law jurisdictions. UK GDPR compliance post-Brexit.

4/5

Legal Jurisdiction

Which laws govern the company and your data?

Parent company RELX PLC is UK/EU incorporated and regulated. LexisNexis US entity is incorporated in Delaware but operates under RELX's broader European governance framework, providing strong data protection oversight.

4/5

Data Retention & Training

Is your data used for model training?

Clear data retention policies aligned with legal professional requirements. Research queries and documents are not retained for AI training. Supports data processing agreements for enterprise law firms.

4/5

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Holds SOC 2 Type II, ISO 27001, and ISO 27701 certifications. Strong certification portfolio appropriate for a platform handling confidential legal information.

4/5

Regulatory Fit

Suitability for regulated industries and professional services

Excellent regulatory fit for law firms and legal departments. Compliance with bar association professional responsibility rules, GDPR, UK GDPR, and CCPA. Trusted by government agencies and Am Law 100 firms.

5/5

Pricing

Subscription14-day trial

Lexis+ AIFreeConversational AI legal research · Citation verification · Brief Analysis · …

EnterpriseFreeAll Lexis+ AI features · API access · Custom integrations · …

Full pricing details →

Quick Facts

Starting PriceCustom pricing (subscription)Data HostingUS, EU, UKTrains on Your DataNever trains on customer dataFounded1970Employees1000+

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Frequently Asked Questions

Is Lexis+ AI GDPR compliant?

Lexis+ AI has a TrustKit compliance score of 84% (Strong). Data Residency: Data hosted across US, EU, and UK data centres. Strong data residency options for law firms in major common law and civil law jurisdictions. UK GDPR compliance post-Brexit.. Legal Jurisdiction: Parent company RELX PLC is UK/EU incorporated and regulated. LexisNexis US entity is incorporated in Delaware but operates under RELX's broader European governance framework, providing strong data protection oversight..

Where does Lexis+ AI store data?

Lexis+ AI hosts data in: US, EU, UK. Data hosted across US, EU, and UK data centres. Strong data residency options for law firms in major common law and civil law jurisdictions. UK GDPR compliance post-Brexit.

Does Lexis+ AI train on user data?

Lexis+ AI: Never trains on customer data. Clear data retention policies aligned with legal professional requirements. Research queries and documents are not retained for AI training. Supports data processing agreements for enterprise law firms.

What certifications does Lexis+ AI hold?

Lexis+ AI holds: SOC 2 Type II, ISO 27001, ISO 27701. Holds SOC 2 Type II, ISO 27001, and ISO 27701 certifications. Strong certification portfolio appropriate for a platform handling confidential legal information.