Lexis+ AI

Hallucination-free AI legal research with authoritative LexisNexis sources

Luminance

AI contract intelligence platform

Lexis+ AI

Strong

21/25

Luminance

Excellent

23/25

Score Breakdown

DimensionLexis+ AILuminance

Data Residency

Where is your data stored and processed?

Lexis+ AI: 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.

Luminance: UK/EU hosting with customer choice; on-premise available

4/5

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.

5/5

UK/EU hosting with customer choice; on-premise available

Legal Jurisdiction

Which laws govern the company and your data?

Lexis+ AI: 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.

Luminance: UK-incorporated company under English law

4/5

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.

5/5

UK-incorporated company under English law

Data Retention & Training

Is your data used for model training?

Lexis+ AI: 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.

Luminance: Zero data used for training; complete client data isolation

4/5

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.

5/5

Zero data used for training; complete client data isolation

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

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

Luminance: SOC 2 Type II, ISO 27001, Cyber Essentials Plus

4/5

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

4/5

SOC 2 Type II, ISO 27001, Cyber Essentials Plus

Regulatory Fit

Suitability for regulated industries and professional services

Lexis+ AI: 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.

Luminance: SRA and FCA suitable; used by regulated law firms and financial institutions

5/5

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.

4/5

SRA and FCA suitable; used by regulated law firms and financial institutions

Total Score

21/25

23/25

Best For

Lexis+ AI

Best for EU-headquartered organisations needing maximum data sovereignty; organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, ISO 27701); regulated industries (FCA, SRA); privacy-conscious teams who need strong data retention controls.

Luminance

Best for EU-headquartered organisations needing maximum data sovereignty; organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, Cyber Essentials Plus); regulated industries (SRA, FCA); privacy-conscious teams who need strong data retention controls; organisations that need self-hosted or on-premise deployment.

Detailed Comparison

Lexis+ AI vs Luminance: Trust & Compliance Comparison

Lexis+ AI (LexisNexis, GB) scores 21/25 overall with a Silver (Strong) trust badge. Hallucination-free AI legal research with authoritative LexisNexis sources. Luminance (Luminance Technologies Ltd, GB) scores 23/25 with a Gold (Excellent) trust badge. AI contract intelligence platform.

Dimension-by-Dimension Breakdown

#### Data Residency

Luminance leads with 5/5 vs 4/5.

●Lexis+ AI (4/5): 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.

●Luminance (5/5): UK/EU hosting with customer choice; on-premise available

#### Legal Jurisdiction

Luminance leads with 5/5 vs 4/5.

●Lexis+ AI (4/5): 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.

●Luminance (5/5): UK-incorporated company under English law

#### Data Retention & Training

Luminance leads with 5/5 vs 4/5.

●Lexis+ AI (4/5): 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.

●Luminance (5/5): Zero data used for training; complete client data isolation

#### Certifications

Both score equally at 4/5.

●Lexis+ AI (4/5): Holds SOC 2 Type II, ISO 27001, and ISO 27701 certifications. Strong certification portfolio appropriate for a platform handling confidential legal information.

●Luminance (4/5): SOC 2 Type II, ISO 27001, Cyber Essentials Plus

#### Regulatory Fit

Lexis+ AI leads with 5/5 vs 4/5.

●Lexis+ AI (5/5): 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.

●Luminance (4/5): SRA and FCA suitable; used by regulated law firms and financial institutions

Certifications at a Glance

Certification	Lexis+ AI	Luminance
Cyber Essentials Plus	No	Yes
ISO 27001	Yes	Yes
ISO 27701	Yes	No
SOC 2 Type II	Yes	Yes

Overall Verdict

Luminance has a clear trust advantage, scoring 23/25 compared to Lexis+ AI's 21/25. Luminance particularly excels in data residency, legal jurisdiction, data retention & training.

Frequently Asked Questions

Which is better for EU compliance, Lexis+ AI or Luminance?

Lexis+ AI has a TrustKit score of 21/25 while Luminance scores 23/25. Luminance currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Lexis+ AI and Luminance compare on data residency?

Lexis+ AI scores 4/5 for 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.), while Luminance scores 5/5 (UK/EU hosting with customer choice; on-premise available).

Are Lexis+ AI and Luminance GDPR compliant?

Both tools are assessed across five compliance dimensions. Lexis+ AI has a regulatory fit score of 5/5 and Luminance scores 4/5. Check the full comparison above for a detailed breakdown.

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