Lexis+ AI

Hallucination-free AI legal research with authoritative LexisNexis sources

Databricks (Mosaic AI)

Unified data and AI lakehouse platform for enterprise-scale machine learning

Lexis+ AI

Strong

21/25

Databricks (Mosaic AI)

Excellent

22/25

Score Breakdown

DimensionLexis+ AIDatabricks (Mosaic 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.

Databricks (Mosaic AI): Data resides entirely within the customer's own cloud account across all major global regions; VPC injection ensures no shared infrastructure

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

Data resides entirely within the customer's own cloud account across all major global regions; VPC injection ensures no shared infrastructure

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.

Databricks (Mosaic AI): US Delaware corporation 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 corporation 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.

Databricks (Mosaic AI): Customer controls all data retention; Databricks has no access to data stored in customer cloud accounts

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 controls all data retention; Databricks has no access to data stored in customer cloud accounts

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.

Databricks (Mosaic AI): SOC 2 Type II, ISO 27001/17/18, HIPAA, FedRAMP Moderate, PCI DSS, and HITRUST certified

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 2 Type II, ISO 27001/17/18, HIPAA, FedRAMP Moderate, PCI DSS, and HITRUST certified

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.

Databricks (Mosaic AI): Purpose-built for regulated enterprise workloads; suitable for healthcare, financial services, and government

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

Purpose-built for regulated enterprise workloads; suitable for healthcare, financial services, and government

Total Score

21/25

22/25

Best For

Lexis+ AI

Best for organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, ISO 27017); regulated industries (ICO, HHS); privacy-conscious teams who need strong data retention controls; organisations that need self-hosted or on-premise deployment.

Databricks (Mosaic 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.

Detailed Comparison

Databricks (Mosaic AI) vs Lexis+ AI: Trust & Compliance Comparison

Databricks (Mosaic AI) (Databricks, US) scores 22/25 overall with a Gold (Excellent) trust badge. Unified data and AI lakehouse platform for enterprise-scale machine learning. Lexis+ AI (LexisNexis, GB) scores 21/25 with a Silver (Strong) trust badge. Hallucination-free AI legal research with authoritative LexisNexis sources.

Dimension-by-Dimension Breakdown

#### Data Residency

Databricks (Mosaic AI) leads with 5/5 vs 4/5.

●Databricks (Mosaic AI) (5/5): Data resides entirely within the customer's own cloud account across all major global regions; VPC injection ensures no shared infrastructure

●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.

#### Legal Jurisdiction

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

●Databricks (Mosaic AI) (2/5): US Delaware corporation subject to CLOUD Act; SCCs and DPAs available for EU/UK transfers

●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.

#### Data Retention & Training

Databricks (Mosaic AI) leads with 5/5 vs 4/5.

●Databricks (Mosaic AI) (5/5): Customer controls all data retention; Databricks has no access to data stored in customer cloud accounts

●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.

#### Certifications

Databricks (Mosaic AI) leads with 5/5 vs 4/5.

●Databricks (Mosaic AI) (5/5): SOC 2 Type II, ISO 27001/17/18, HIPAA, FedRAMP Moderate, PCI DSS, and HITRUST certified

●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.

#### Regulatory Fit

Both score equally at 5/5.

●Databricks (Mosaic AI) (5/5): Purpose-built for regulated enterprise workloads; suitable for healthcare, financial services, and government

●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.

Certifications at a Glance

Certification	Databricks (Mosaic AI)	Lexis+ AI
FedRAMP Moderate	Yes	No
HIPAA	Yes	No
HITRUST	Yes	No
ISO 27001	Yes	Yes
ISO 27017	Yes	No
ISO 27018	Yes	No
ISO 27701	No	Yes
PCI DSS	Yes	No
SOC 2 Type II	Yes	Yes

Overall Verdict

Databricks (Mosaic AI) and Lexis+ AI are closely matched on trust and compliance, with scores of 22/25 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 Databricks (Mosaic AI)?

Lexis+ AI has a TrustKit score of 21/25 while Databricks (Mosaic AI) scores 22/25. Databricks (Mosaic AI) currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Lexis+ AI and Databricks (Mosaic 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 Databricks (Mosaic AI) scores 5/5 (Data resides entirely within the customer's own cloud account across all major global regions; VPC injection ensures no shared infrastructure).

Are Lexis+ AI and Databricks (Mosaic AI) GDPR compliant?

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

Explore Each Tool

Lexis+ AI

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Databricks (Mosaic AI)

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