Lexis+ AI

Hallucination-free AI legal research with authoritative LexisNexis sources

Workday AI

Enterprise HR and finance AI platform embedded in Workday's ERP suite

Lexis+ AI

Strong

21/25

Workday AI

Strong

21/25

Score Breakdown

DimensionLexis+ AIWorkday AI

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.

Workday AI: Data residency in US, EU, CA, AU; processing confined to selected region; tenant isolation enforced

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.

4/5

Data residency in US, EU, CA, AU; processing confined to selected region; tenant isolation enforced

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.

Workday AI: US Delaware public company subject to CLOUD Act; SCCs and DPAs available for EU/UK transfers

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.

2/5

US Delaware public company subject to CLOUD Act; SCCs and DPAs available for EU/UK transfers

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.

Workday AI: Customer data not used for AI model training; aggregate anonymised signals only; configurable data retention

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

Customer data not used for AI model training; aggregate anonymised signals only; configurable data retention

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.

Workday AI: SOC 1/2 Type II, ISO 27001/17/18, FedRAMP Authorized, and HIPAA — among the strongest certification portfolios available

4/5

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

5/5

SOC 1/2 Type II, ISO 27001/17/18, FedRAMP Authorized, and HIPAA — among the strongest certification portfolios available

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.

Workday AI: Designed for regulated enterprise HR and finance; built-in SOX, DORA, and GDPR compliance modules

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.

5/5

Designed for regulated enterprise HR and finance; built-in SOX, DORA, and GDPR compliance modules

Total Score

21/25

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.

Workday AI

Best for organisations requiring broad certification coverage (SOC 1 Type II, SOC 2 Type II, ISO 27001); regulated industries (ICO, HHS); privacy-conscious teams who need strong data retention controls.

Detailed Comparison

Lexis+ AI vs Workday AI: 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. Workday AI (Workday, US) scores 21/25 with a Silver (Strong) trust badge. Enterprise HR and finance AI platform embedded in Workday's ERP suite.

Dimension-by-Dimension Breakdown

#### Data Residency

Both score equally at 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.

●Workday AI (4/5): Data residency in US, EU, CA, AU; processing confined to selected region; tenant isolation enforced

#### Legal Jurisdiction

Lexis+ AI leads with 4/5 vs 2/5.

●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.

●Workday AI (2/5): US Delaware public company subject to CLOUD Act; SCCs and DPAs available for EU/UK transfers

#### Data Retention & Training

Workday AI 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.

●Workday AI (5/5): Customer data not used for AI model training; aggregate anonymised signals only; configurable data retention

#### Certifications

Workday AI leads with 5/5 vs 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.

●Workday AI (5/5): SOC 1/2 Type II, ISO 27001/17/18, FedRAMP Authorized, and HIPAA — among the strongest certification portfolios available

#### Regulatory Fit

Both score equally at 5/5.

●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.

●Workday AI (5/5): Designed for regulated enterprise HR and finance; built-in SOX, DORA, and GDPR compliance modules

Certifications at a Glance

Certification	Lexis+ AI	Workday AI
FedRAMP Authorized	No	Yes
HIPAA	No	Yes
ISO 27001	Yes	Yes
ISO 27017	No	Yes
ISO 27018	No	Yes
ISO 27701	Yes	No
SOC 1 Type II	No	Yes
SOC 2 Type II	Yes	Yes

Overall Verdict

Lexis+ AI and Workday AI are closely matched on trust and compliance, with scores of 21/25 and 21/25 respectively. The right choice depends on your specific regulatory requirements and existing technology stack.

Frequently Asked Questions

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

Lexis+ AI has a TrustKit score of 21/25 while Workday AI scores 21/25. Both tools are currently rated equally across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Lexis+ AI and Workday AI 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 Workday AI scores 4/5 (Data residency in US, EU, CA, AU; processing confined to selected region; tenant isolation enforced).

Are Lexis+ AI and Workday AI GDPR compliant?

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

Explore Each Tool