Google NotebookLM

AI research assistant that reasons over your own documents and sources

Luminance

AI contract intelligence platform

Google NotebookLM

Strong

17/25

Luminance

Excellent

23/25

Score Breakdown

DimensionGoogle NotebookLMLuminance

Data Residency

Where is your data stored and processed?

Google NotebookLM: Free tier uses US data centres. Enterprise Workspace customers can select EU data regions, providing compliant data residency for European businesses. Consumer accounts have limited regional controls.

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

3/5

Free tier uses US data centres. Enterprise Workspace customers can select EU data regions, providing compliant data residency for European businesses. Consumer accounts have limited regional controls.

5/5

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

Legal Jurisdiction

Which laws govern the company and your data?

Google NotebookLM: Google LLC is incorporated in Delaware, US. Subject to the CLOUD Act. Google has signed SCCs and model DPAs for enterprise Workspace customers, providing some mitigation, but US jurisdiction remains a fundamental risk.

Luminance: UK-incorporated company under English law

2/5

Google LLC is incorporated in Delaware, US. Subject to the CLOUD Act. Google has signed SCCs and model DPAs for enterprise Workspace customers, providing some mitigation, but US jurisdiction remains a fundamental risk.

5/5

UK-incorporated company under English law

Data Retention & Training

Is your data used for model training?

Google NotebookLM: Enterprise Workspace accounts: notebooks and data not used for model training under DPA. Configurable retention and deletion. Free consumer accounts: less certain. Enterprise controls are significantly stronger.

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

4/5

Enterprise Workspace accounts: notebooks and data not used for model training under DPA. Configurable retention and deletion. Free consumer accounts: less certain. Enterprise controls are significantly stronger.

5/5

Zero data used for training; complete client data isolation

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Google NotebookLM: Google's cloud infrastructure holds ISO 27001, ISO 27017, ISO 27018, SOC 2 Type II, and BSI C5 (Germany). Among the most comprehensively certified cloud providers. NotebookLM for Business inherits these certifications via Workspace.

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

5/5

Google's cloud infrastructure holds ISO 27001, ISO 27017, ISO 27018, SOC 2 Type II, and BSI C5 (Germany). Among the most comprehensively certified cloud providers. NotebookLM for Business inherits these certifications via Workspace.

4/5

SOC 2 Type II, ISO 27001, Cyber Essentials Plus

Regulatory Fit

Suitability for regulated industries and professional services

Google NotebookLM: Enterprise Workspace deployment with EU data region provides an acceptable compliance posture for most EU businesses. For regulated industries (financial services, healthcare), additional due diligence on Google's CLOUD Act exposure is required.

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

3/5

Enterprise Workspace deployment with EU data region provides an acceptable compliance posture for most EU businesses. For regulated industries (financial services, healthcare), additional due diligence on Google's CLOUD Act exposure is required.

4/5

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

Total Score

17/25

23/25

Best For

Google NotebookLM

Best for organisations requiring broad certification coverage (ISO 27001, ISO 27017, ISO 27018); privacy-conscious teams who need strong data retention controls; teams on a tight budget.

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

Google NotebookLM vs Luminance: Trust & Compliance Comparison

Google NotebookLM (Google, US) scores 17/25 overall with a Silver (Strong) trust badge. AI research assistant that reasons over your own documents and 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 3/5.

●Google NotebookLM (3/5): Free tier uses US data centres. Enterprise Workspace customers can select EU data regions, providing compliant data residency for European businesses. Consumer accounts have limited regional controls.

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

#### Legal Jurisdiction

Luminance leads with 5/5 vs 2/5.

●Google NotebookLM (2/5): Google LLC is incorporated in Delaware, US. Subject to the CLOUD Act. Google has signed SCCs and model DPAs for enterprise Workspace customers, providing some mitigation, but US jurisdiction remains a fundamental risk.

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

#### Data Retention & Training

Luminance leads with 5/5 vs 4/5.

●Google NotebookLM (4/5): Enterprise Workspace accounts: notebooks and data not used for model training under DPA. Configurable retention and deletion. Free consumer accounts: less certain. Enterprise controls are significantly stronger.

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

#### Certifications

Google NotebookLM leads with 5/5 vs 4/5.

●Google NotebookLM (5/5): Google's cloud infrastructure holds ISO 27001, ISO 27017, ISO 27018, SOC 2 Type II, and BSI C5 (Germany). Among the most comprehensively certified cloud providers. NotebookLM for Business inherits these certifications via Workspace.

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

#### Regulatory Fit

Luminance leads with 4/5 vs 3/5.

●Google NotebookLM (3/5): Enterprise Workspace deployment with EU data region provides an acceptable compliance posture for most EU businesses. For regulated industries (financial services, healthcare), additional due diligence on Google's CLOUD Act exposure is required.

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

Certifications at a Glance

Certification	Google NotebookLM	Luminance
C5	Yes	No
Cyber Essentials Plus	No	Yes
ISO 27001	Yes	Yes
ISO 27017	Yes	No
ISO 27018	Yes	No
SOC 2 Type II	Yes	Yes

Overall Verdict

Luminance has a clear trust advantage, scoring 23/25 compared to Google NotebookLM's 17/25. Luminance particularly excels in data residency, legal jurisdiction, data retention & training, regulatory fit.

Frequently Asked Questions

Which is better for EU compliance, Google NotebookLM or Luminance?

Google NotebookLM has a TrustKit score of 17/25 while Luminance scores 23/25. Luminance currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Google NotebookLM and Luminance compare on data residency?

Google NotebookLM scores 3/5 for data residency (Free tier uses US data centres. Enterprise Workspace customers can select EU data regions, providing compliant data residency for European businesses. Consumer accounts have limited regional controls.), while Luminance scores 5/5 (UK/EU hosting with customer choice; on-premise available).

Are Google NotebookLM and Luminance GDPR compliant?

Both tools are assessed across five compliance dimensions. Google NotebookLM has a regulatory fit score of 3/5 and Luminance scores 4/5. Check the full comparison above for a detailed breakdown.

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