Google NotebookLM

AI research assistant that reasons over your own documents and sources

LegalFly

Belgian legal AI that automates repetitive tasks and translates legalese

Google NotebookLM

Strong

17/25

LegalFly

Strong

19/25

Score Breakdown

DimensionGoogle NotebookLMLegalFly

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.

LegalFly: EU data centres; Belgian company with EU-only processing

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

EU data centres; Belgian company with EU-only processing

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.

LegalFly: Belgian NV under EU law; essential for legal data sovereignty

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

Belgian NV under EU law; essential for legal data sovereignty

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.

LegalFly: No training on customer legal data; GDPR-compliant

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.

4/5

No training on customer legal data; GDPR-compliant

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.

LegalFly: No public certifications yet; Series A stage

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.

1/5

No public certifications yet; Series A stage

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.

LegalFly: EU-headquartered legal AI suitable for European law firms and legal departments

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

EU-headquartered legal AI suitable for European law firms and legal departments

Total Score

17/25

19/25

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.

LegalFly

Best for EU-headquartered organisations needing maximum data sovereignty; regulated industries (ICO); privacy-conscious teams who need strong data retention controls.

Detailed Comparison

Google NotebookLM vs LegalFly: 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. LegalFly (LegalFly, BE) scores 19/25 with a Silver (Strong) trust badge. Belgian legal AI that automates repetitive tasks and translates legalese.

Dimension-by-Dimension Breakdown

#### Data Residency

LegalFly 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.

●LegalFly (5/5): EU data centres; Belgian company with EU-only processing

#### Legal Jurisdiction

LegalFly 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.

●LegalFly (5/5): Belgian NV under EU law; essential for legal data sovereignty

#### Data Retention & Training

Both score equally at 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.

●LegalFly (4/5): No training on customer legal data; GDPR-compliant

#### Certifications

Google NotebookLM leads with 5/5 vs 1/5.

●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.

●LegalFly (1/5): No public certifications yet; Series A stage

#### Regulatory Fit

LegalFly 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.

●LegalFly (4/5): EU-headquartered legal AI suitable for European law firms and legal departments

Certifications at a Glance

Certification	Google NotebookLM	LegalFly
C5	Yes	No
ISO 27001	Yes	No
ISO 27017	Yes	No
ISO 27018	Yes	No
SOC 2 Type II	Yes	No

Overall Verdict

LegalFly has a clear trust advantage, scoring 19/25 compared to Google NotebookLM's 17/25. LegalFly particularly excels in data residency, legal jurisdiction, regulatory fit.

Frequently Asked Questions

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

Google NotebookLM has a TrustKit score of 17/25 while LegalFly scores 19/25. LegalFly currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Google NotebookLM and LegalFly 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 LegalFly scores 5/5 (EU data centres; Belgian company with EU-only processing).

Are Google NotebookLM and LegalFly GDPR compliant?

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

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