Lumo (Proton)

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

Meta AI / Llama

Meta's AI assistant and open-weights Llama models for self-hosted deployment

Lumo (Proton)

Excellent

23/25

Meta AI / Llama

Caution

8/25

Score Breakdown

DimensionLumo (Proton)Meta AI / Llama

Data Residency

Where is your data stored and processed?

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.

Meta AI / Llama: Hosted Meta AI processes data in US data centres with no EU residency option. Self-hosted Llama deployments can achieve a score of 5 with EU-region infrastructure. Scores here reflect the hosted product.

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.

1/5

Hosted Meta AI processes data in US data centres with no EU residency option. Self-hosted Llama deployments can achieve a score of 5 with EU-region infrastructure. Scores here reflect the hosted product.

Legal Jurisdiction

Which laws govern the company and your data?

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.

Meta AI / Llama: Meta Platforms Inc. is a US company subject to the CLOUD Act and has been repeatedly fined by EU DPAs for GDPR violations. Multiple rulings against Meta's data transfer mechanisms make the hosted product high-risk for EU businesses.

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.

1/5

Meta Platforms Inc. is a US company subject to the CLOUD Act and has been repeatedly fined by EU DPAs for GDPR violations. Multiple rulings against Meta's data transfer mechanisms make the hosted product high-risk for EU businesses.

Data Retention & Training

Is your data used for model training?

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

Meta AI / Llama: Hosted Meta AI interactions may be used to improve Meta's models under default settings. Self-hosted Llama: no data retention or training by the model provider. Scores reflect the hosted product with limited user controls.

5/5

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

2/5

Hosted Meta AI interactions may be used to improve Meta's models under default settings. Self-hosted Llama: no data retention or training by the model provider. Scores reflect the hosted product with limited user controls.

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

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.

Meta AI / Llama: Meta's core infrastructure holds SOC 2 Type II and ISO 27001 certifications for its platform services. However, these certifications cover Meta's broader infrastructure and are not specific to the AI assistant product.

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.

3/5

Meta's core infrastructure holds SOC 2 Type II and ISO 27001 certifications for its platform services. However, these certifications cover Meta's broader infrastructure and are not specific to the AI assistant product.

Regulatory Fit

Suitability for regulated industries and professional services

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.

Meta AI / Llama: Hosted Meta AI is not suitable for regulated EU industries. Meta's track record with European regulators is one of the weakest among major technology companies. Self-hosted Llama is an excellent option for EU sovereignty when deployed responsibly.

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.

1/5

Hosted Meta AI is not suitable for regulated EU industries. Meta's track record with European regulators is one of the weakest among major technology companies. Self-hosted Llama is an excellent option for EU sovereignty when deployed responsibly.

Total Score

23/25

8/25

Best For

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; enterprises requiring SSO integration.

Meta AI / Llama

Best for organisations that need self-hosted or on-premise deployment; teams on a tight budget.

Detailed Comparison

Lumo (Proton) vs Meta AI / Llama: Trust & Compliance Comparison

Lumo (Proton) (Proton, CH) scores 23/25 overall with a Gold (Excellent) trust badge. Privacy-first AI assistant from the makers of ProtonMail, with Swiss jurisdiction and zero-access encryption. Meta AI / Llama (Meta Platforms, US) scores 8/25 with a Review Required (Caution) trust badge. Meta's AI assistant and open-weights Llama models for self-hosted deployment.

Dimension-by-Dimension Breakdown

#### Data Residency

Lumo (Proton) leads with 5/5 vs 1/5.

●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.

●Meta AI / Llama (1/5): Hosted Meta AI processes data in US data centres with no EU residency option. Self-hosted Llama deployments can achieve a score of 5 with EU-region infrastructure. Scores here reflect the hosted product.

#### Legal Jurisdiction

Lumo (Proton) leads with 5/5 vs 1/5.

●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.

●Meta AI / Llama (1/5): Meta Platforms Inc. is a US company subject to the CLOUD Act and has been repeatedly fined by EU DPAs for GDPR violations. Multiple rulings against Meta's data transfer mechanisms make the hosted product high-risk for EU businesses.

#### Data Retention & Training

Lumo (Proton) leads with 5/5 vs 2/5.

●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.

●Meta AI / Llama (2/5): Hosted Meta AI interactions may be used to improve Meta's models under default settings. Self-hosted Llama: no data retention or training by the model provider. Scores reflect the hosted product with limited user controls.

#### Certifications

Lumo (Proton) leads with 4/5 vs 3/5.

●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.

●Meta AI / Llama (3/5): Meta's core infrastructure holds SOC 2 Type II and ISO 27001 certifications for its platform services. However, these certifications cover Meta's broader infrastructure and are not specific to the AI assistant product.

#### Regulatory Fit

Lumo (Proton) leads with 4/5 vs 1/5.

●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.

●Meta AI / Llama (1/5): Hosted Meta AI is not suitable for regulated EU industries. Meta's track record with European regulators is one of the weakest among major technology companies. Self-hosted Llama is an excellent option for EU sovereignty when deployed responsibly.

Certifications at a Glance

Certification	Lumo (Proton)	Meta AI / Llama
ISO 27001	Yes	Yes
SOC 2	Yes	No
SOC 2 Type II	No	Yes

Overall Verdict

Lumo (Proton) has a clear trust advantage, scoring 23/25 compared to Meta AI / Llama's 8/25. Lumo (Proton) particularly excels in data residency, legal jurisdiction, data retention & training, certifications, regulatory fit.

Frequently Asked Questions

Which is better for EU compliance, Lumo (Proton) or Meta AI / Llama?

Lumo (Proton) has a TrustKit score of 23/25 while Meta AI / Llama scores 8/25. Lumo (Proton) currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Lumo (Proton) and Meta AI / Llama compare on data residency?

Lumo (Proton) scores 5/5 for data residency (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.), while Meta AI / Llama scores 1/5 (Hosted Meta AI processes data in US data centres with no EU residency option. Self-hosted Llama deployments can achieve a score of 5 with EU-region infrastructure. Scores here reflect the hosted product.).

Are Lumo (Proton) and Meta AI / Llama GDPR compliant?

Both tools are assessed across five compliance dimensions. Lumo (Proton) has a regulatory fit score of 4/5 and Meta AI / Llama scores 1/5. Check the full comparison above for a detailed breakdown.

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