Google NotebookLM

AI research assistant that reasons over your own documents and sources

Guru

AI enterprise knowledge management that surfaces the right information in the right workflow

Google NotebookLM

Strong

17/25

Guru

Moderate

13/25

Score Breakdown

DimensionGoogle NotebookLMGuru

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.

Guru: Hosted on AWS US region; no EU or regional data residency options publicly 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.

2/5

Hosted on AWS US region; no EU or regional data residency options publicly 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.

Guru: US Delaware corporation subject to CLOUD Act; GDPR DPA available; SCCs for EU data transfers

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.

2/5

US Delaware corporation subject to CLOUD Act; GDPR DPA available; SCCs for EU data transfers

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.

Guru: Customer knowledge content not used for model training; configurable retention and deletion; GDPR-compliant DPA

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

Customer knowledge content not used for model training; configurable retention and deletion; GDPR-compliant DPA

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.

Guru: SOC 2 Type II certified; no ISO 27001 or additional certifications publicly confirmed

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.

2/5

SOC 2 Type II certified; no ISO 27001 or additional certifications publicly confirmed

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.

Guru: Verification and governance model well-suited to compliance knowledge management; limited data residency options

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.

3/5

Verification and governance model well-suited to compliance knowledge management; limited data residency options

Total Score

17/25

13/25

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.

Guru

Best for privacy-conscious teams who need strong data retention controls; teams on a tight budget.

Detailed Comparison

Google NotebookLM vs Guru: 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. Guru (Guru Technologies, US) scores 13/25 with a Bronze (Moderate) trust badge. AI enterprise knowledge management that surfaces the right information in the right workflow.

Dimension-by-Dimension Breakdown

#### Data Residency

Google NotebookLM leads with 3/5 vs 2/5.

●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.

●Guru (2/5): Hosted on AWS US region; no EU or regional data residency options publicly available

#### Legal Jurisdiction

Both score equally at 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.

●Guru (2/5): US Delaware corporation subject to CLOUD Act; GDPR DPA available; SCCs for EU data transfers

#### 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.

●Guru (4/5): Customer knowledge content not used for model training; configurable retention and deletion; GDPR-compliant DPA

#### Certifications

Google NotebookLM leads with 5/5 vs 2/5.

●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.

●Guru (2/5): SOC 2 Type II certified; no ISO 27001 or additional certifications publicly confirmed

#### Regulatory Fit

Both score equally at 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.

●Guru (3/5): Verification and governance model well-suited to compliance knowledge management; limited data residency options

Certifications at a Glance

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

Overall Verdict

Google NotebookLM has a clear trust advantage, scoring 17/25 compared to Guru's 13/25. Google NotebookLM particularly excels in data residency, certifications.

Frequently Asked Questions

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

Google NotebookLM has a TrustKit score of 17/25 while Guru scores 13/25. Google NotebookLM currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Google NotebookLM and Guru 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 Guru scores 2/5 (Hosted on AWS US region; no EU or regional data residency options publicly available).

Are Google NotebookLM and Guru GDPR compliant?

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

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