Gemini

Google's AI assistant for creativity, productivity, and coding

Lumo (Proton)

Privacy-first AI assistant from the makers of ProtonMail, with Swiss jurisdiction and zero-access encryption

Gemini

Strong

19/25

Lumo (Proton)

Excellent

23/25

Score Breakdown

DimensionGeminiLumo (Proton)

Data Residency

Where is your data stored and processed?

Gemini: Google Cloud offers data residency in numerous global regions. Google Workspace customers can configure data regions for covered data. Gemini API requests are processed in Google's global data centers.

Lumo (Proton): Data hosted in Proton's own data centres in Germany and Norway. Zero-access encryption means even Proton cannot read conversation content. No US infrastructure dependency.

4/5

Google Cloud offers data residency in numerous global regions. Google Workspace customers can configure data regions for covered data. Gemini API requests are processed in Google's global data centers.

5/5

Data hosted in Proton's own data centres in Germany and Norway. Zero-access encryption means even Proton cannot read conversation content. No US infrastructure dependency.

Legal Jurisdiction

Which laws govern the company and your data?

Gemini: Alphabet is incorporated in Delaware, US. Subject to US laws including the CLOUD Act. Google offers Standard Contractual Clauses and has committed to EU data sovereignty initiatives.

Lumo (Proton): Swiss incorporation provides one of the strongest privacy jurisdictions globally. Outside US CLOUD Act reach. Swiss FADP and GDPR adequacy. Proton has a decade-long track record of defending user privacy.

3/5

Alphabet is incorporated in Delaware, US. Subject to US laws including the CLOUD Act. Google offers Standard Contractual Clauses and has committed to EU data sovereignty initiatives.

5/5

Swiss incorporation provides one of the strongest privacy jurisdictions globally. Outside US CLOUD Act reach. Swiss FADP and GDPR adequacy. Proton has a decade-long track record of defending user privacy.

Data Retention & Training

Is your data used for model training?

Gemini: For paid Workspace plans, Gemini prompts and responses are subject to customer-configured retention policies. Free tier conversations may be reviewed for quality improvement with an opt-out option.

Lumo (Proton): Zero-access encryption on conversations. User data explicitly never used for model training. Open-source code enables independent verification of privacy claims.

3/5

For paid Workspace plans, Gemini prompts and responses are subject to customer-configured retention policies. Free tier conversations may be reviewed for quality improvement with an opt-out option.

5/5

Zero-access encryption on conversations. User data explicitly never used for model training. Open-source code enables independent verification of privacy claims.

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Gemini: Google Cloud holds an extensive portfolio of certifications including SOC 1/2/3, ISO 27001/27017/27018/27701, FedRAMP High, and many region-specific certifications.

Lumo (Proton): ISO 27001 and SOC 2 at Proton AG organisational level. Strong for a consumer-facing privacy product. ISO 27701 would further strengthen the posture.

5/5

Google Cloud holds an extensive portfolio of certifications including SOC 1/2/3, ISO 27001/27017/27018/27701, FedRAMP High, and many region-specific certifications.

4/5

ISO 27001 and SOC 2 at Proton AG organisational level. Strong for a consumer-facing privacy product. ISO 27701 would further strengthen the posture.

Regulatory Fit

Suitability for regulated industries and professional services

Gemini: Strong regulatory support across GDPR, HIPAA, FedRAMP, and other frameworks. Google Workspace for Education and Government editions offer additional compliance features.

Lumo (Proton): Excellent fit for privacy-sensitive professionals in legal and financial services. Swiss jurisdiction, zero-access encryption, and no training on user data address key regulatory concerns. Not EU-incorporated but GDPR adequate.

4/5

Strong regulatory support across GDPR, HIPAA, FedRAMP, and other frameworks. Google Workspace for Education and Government editions offer additional compliance features.

4/5

Excellent fit for privacy-sensitive professionals in legal and financial services. Swiss jurisdiction, zero-access encryption, and no training on user data address key regulatory concerns. Not EU-incorporated but GDPR adequate.

Total Score

19/25

23/25

Best For

Gemini

Best for organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, ISO 27017).

Lumo (Proton)

Best for EU-headquartered organisations needing maximum data sovereignty; regulated industries (legal, financial-services); privacy-conscious teams who need strong data retention controls; organisations that need self-hosted or on-premise deployment; teams on a tight budget.

Detailed Comparison

Gemini vs Lumo (Proton): Trust & Compliance Comparison

Gemini (Google, US) scores 19/25 overall with a Silver (Strong) trust badge. Google's AI assistant for creativity, productivity, and coding. Lumo (Proton) (Proton, CH) scores 23/25 with a Gold (Excellent) trust badge. Privacy-first AI assistant from the makers of ProtonMail, with Swiss jurisdiction and zero-access encryption.

Dimension-by-Dimension Breakdown

#### Data Residency

Lumo (Proton) leads with 5/5 vs 4/5.

●Gemini (4/5): Google Cloud offers data residency in numerous global regions. Google Workspace customers can configure data regions for covered data. Gemini API requests are processed in Google's global data centers.

●Lumo (Proton) (5/5): Data hosted in Proton's own data centres in Germany and Norway. Zero-access encryption means even Proton cannot read conversation content. No US infrastructure dependency.

#### Legal Jurisdiction

Lumo (Proton) leads with 5/5 vs 3/5.

●Gemini (3/5): Alphabet is incorporated in Delaware, US. Subject to US laws including the CLOUD Act. Google offers Standard Contractual Clauses and has committed to EU data sovereignty initiatives.

●Lumo (Proton) (5/5): Swiss incorporation provides one of the strongest privacy jurisdictions globally. Outside US CLOUD Act reach. Swiss FADP and GDPR adequacy. Proton has a decade-long track record of defending user privacy.

#### Data Retention & Training

Lumo (Proton) leads with 5/5 vs 3/5.

●Gemini (3/5): For paid Workspace plans, Gemini prompts and responses are subject to customer-configured retention policies. Free tier conversations may be reviewed for quality improvement with an opt-out option.

●Lumo (Proton) (5/5): Zero-access encryption on conversations. User data explicitly never used for model training. Open-source code enables independent verification of privacy claims.

#### Certifications

Gemini leads with 5/5 vs 4/5.

●Gemini (5/5): Google Cloud holds an extensive portfolio of certifications including SOC 1/2/3, ISO 27001/27017/27018/27701, FedRAMP High, and many region-specific certifications.

●Lumo (Proton) (4/5): ISO 27001 and SOC 2 at Proton AG organisational level. Strong for a consumer-facing privacy product. ISO 27701 would further strengthen the posture.

#### Regulatory Fit

Both score equally at 4/5.

●Gemini (4/5): Strong regulatory support across GDPR, HIPAA, FedRAMP, and other frameworks. Google Workspace for Education and Government editions offer additional compliance features.

●Lumo (Proton) (4/5): Excellent fit for privacy-sensitive professionals in legal and financial services. Swiss jurisdiction, zero-access encryption, and no training on user data address key regulatory concerns. Not EU-incorporated but GDPR adequate.

Certifications at a Glance

Certification	Gemini	Lumo (Proton)
FedRAMP High	Yes	No
ISO 27001	Yes	Yes
ISO 27017	Yes	No
ISO 27018	Yes	No
SOC 2	No	Yes
SOC 2 Type II	Yes	No

Overall Verdict

Lumo (Proton) has a clear trust advantage, scoring 23/25 compared to Gemini's 19/25. Lumo (Proton) particularly excels in data residency, legal jurisdiction, data retention & training.

Frequently Asked Questions

Which is better for EU compliance, Gemini or Lumo (Proton)?

Gemini has a TrustKit score of 19/25 while Lumo (Proton) scores 23/25. Lumo (Proton) currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Gemini and Lumo (Proton) compare on data residency?

Gemini scores 4/5 for data residency (Google Cloud offers data residency in numerous global regions. Google Workspace customers can configure data regions for covered data. Gemini API requests are processed in Google's global data centers.), while Lumo (Proton) scores 5/5 (Data hosted in Proton's own data centres in Germany and Norway. Zero-access encryption means even Proton cannot read conversation content. No US infrastructure dependency.).

Are Gemini and Lumo (Proton) GDPR compliant?

Both tools are assessed across five compliance dimensions. Gemini has a regulatory fit score of 4/5 and Lumo (Proton) scores 4/5. Check the full comparison above for a detailed breakdown.

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