Langfuse

Open-source LLM observability and engineering platform for tracing, evaluation, and prompt management

OVHcloud AI

European sovereign AI infrastructure—GPU compute and managed LLM APIs from France

Langfuse

Excellent

22/25

OVHcloud AI

Excellent

25/25

Score Breakdown

DimensionLangfuseOVHcloud AI

Data Residency

Where is your data stored and processed?

Langfuse: EU cloud region (Ireland) keeps data within EEA. Full self-hosting option allows air-gapped EU deployments with zero cloud dependency. Customer can choose exact data location.

OVHcloud AI: Exclusively European data centres with full EU sovereign cloud capabilities. SecNumCloud-qualified infrastructure for highest-sensitivity French public sector requirements. Multiple EU country options (France, Germany, UK, Poland). Maximum data residency score.

5/5

EU cloud region (Ireland) keeps data within EEA. Full self-hosting option allows air-gapped EU deployments with zero cloud dependency. Customer can choose exact data location.

5/5

Exclusively European data centres with full EU sovereign cloud capabilities. SecNumCloud-qualified infrastructure for highest-sensitivity French public sector requirements. Multiple EU country options (France, Germany, UK, Poland). Maximum data residency score.

Legal Jurisdiction

Which laws govern the company and your data?

Langfuse: German GmbH (EU company) but acquired by ClickHouse Inc. (US). German law governs the entity but US parent introduces CLOUD Act considerations. Self-hosted deployment eliminates US cloud dependency.

OVHcloud AI: French SA incorporated under French law, subject to GDPR and EU AI Act as corporate law. No US parent, no CLOUD Act exposure. Founding member of GAIA-X. Active participant in EU sovereignty frameworks. Highest possible legal jurisdiction score.

3/5

German GmbH (EU company) but acquired by ClickHouse Inc. (US). German law governs the entity but US parent introduces CLOUD Act considerations. Self-hosted deployment eliminates US cloud dependency.

5/5

French SA incorporated under French law, subject to GDPR and EU AI Act as corporate law. No US parent, no CLOUD Act exposure. Founding member of GAIA-X. Active participant in EU sovereignty frameworks. Highest possible legal jurisdiction score.

Data Retention & Training

Is your data used for model training?

Langfuse: Explicitly does not train on customer data. Customer traces and prompts processed solely to provide the service. Self-hosted gives full data lifecycle control.

OVHcloud AI: Customer data fully isolated per project. Not used for cross-customer model training. Configurable retention, audit logging, and data deletion workflows. GDPR-compliant DPA included with all cloud services.

5/5

Explicitly does not train on customer data. Customer traces and prompts processed solely to provide the service. Self-hosted gives full data lifecycle control.

5/5

Customer data fully isolated per project. Not used for cross-customer model training. Configurable retention, audit logging, and data deletion workflows. GDPR-compliant DPA included with all cloud services.

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Langfuse: SOC 2 Type II and ISO 27001 certified with annual audits. HIPAA BAA available. Annual external penetration tests. Excellent certification posture for a developer tooling company.

OVHcloud AI: ISO 27001, ISO 27017, ISO 27018, SOC 2 Type II, HDS (healthcare data hosting), and SecNumCloud qualification. Among the most comprehensively certified European cloud providers. HDS makes OVHcloud suitable for French healthcare AI workloads.

5/5

SOC 2 Type II and ISO 27001 certified with annual audits. HIPAA BAA available. Annual external penetration tests. Excellent certification posture for a developer tooling company.

5/5

ISO 27001, ISO 27017, ISO 27018, SOC 2 Type II, HDS (healthcare data hosting), and SecNumCloud qualification. Among the most comprehensively certified European cloud providers. HDS makes OVHcloud suitable for French healthcare AI workloads.

Regulatory Fit

Suitability for regulated industries and professional services

Langfuse: EU data hosting, GDPR DPA, German legal origin, self-hosting for regulated industries. HIPAA compliance extends reach to healthcare. The ClickHouse acquisition is the main caveat for sovereignty purists.

OVHcloud AI: Maximum regulatory fit for European organisations. SecNumCloud for French public sector and defence-adjacent workloads. HDS for healthcare. GDPR-native design. NIS2-aligned operational resilience. The strongest sovereignty profile of any managed AI infrastructure provider.

4/5

EU data hosting, GDPR DPA, German legal origin, self-hosting for regulated industries. HIPAA compliance extends reach to healthcare. The ClickHouse acquisition is the main caveat for sovereignty purists.

5/5

Maximum regulatory fit for European organisations. SecNumCloud for French public sector and defence-adjacent workloads. HDS for healthcare. GDPR-native design. NIS2-aligned operational resilience. The strongest sovereignty profile of any managed AI infrastructure provider.

Total Score

22/25

25/25

Best For

Langfuse

Best for regulated industries (BaFin, CNIL); privacy-conscious teams who need strong data retention controls; organisations that need self-hosted or on-premise deployment; teams on a tight budget.

OVHcloud AI

Best for EU-headquartered organisations needing maximum data sovereignty; organisations requiring broad certification coverage (ISO 27001, ISO 27017, ISO 27018); regulated industries (CNIL, ANSSI); privacy-conscious teams who need strong data retention controls.

Detailed Comparison

Langfuse vs OVHcloud AI: Trust & Compliance Comparison

Langfuse (Langfuse (ClickHouse), DE) scores 22/25 overall with a Gold (Excellent) trust badge. Open-source LLM observability and engineering platform for tracing, evaluation, and prompt management. OVHcloud AI (OVHcloud, FR) scores 25/25 with a Gold (Excellent) trust badge. European sovereign AI infrastructure—GPU compute and managed LLM APIs from France.

Dimension-by-Dimension Breakdown

#### Data Residency

Both score equally at 5/5.

●Langfuse (5/5): EU cloud region (Ireland) keeps data within EEA. Full self-hosting option allows air-gapped EU deployments with zero cloud dependency. Customer can choose exact data location.

●OVHcloud AI (5/5): Exclusively European data centres with full EU sovereign cloud capabilities. SecNumCloud-qualified infrastructure for highest-sensitivity French public sector requirements. Multiple EU country options (France, Germany, UK, Poland). Maximum data residency score.

#### Legal Jurisdiction

OVHcloud AI leads with 5/5 vs 3/5.

●Langfuse (3/5): German GmbH (EU company) but acquired by ClickHouse Inc. (US). German law governs the entity but US parent introduces CLOUD Act considerations. Self-hosted deployment eliminates US cloud dependency.

●OVHcloud AI (5/5): French SA incorporated under French law, subject to GDPR and EU AI Act as corporate law. No US parent, no CLOUD Act exposure. Founding member of GAIA-X. Active participant in EU sovereignty frameworks. Highest possible legal jurisdiction score.

#### Data Retention & Training

Both score equally at 5/5.

●Langfuse (5/5): Explicitly does not train on customer data. Customer traces and prompts processed solely to provide the service. Self-hosted gives full data lifecycle control.

●OVHcloud AI (5/5): Customer data fully isolated per project. Not used for cross-customer model training. Configurable retention, audit logging, and data deletion workflows. GDPR-compliant DPA included with all cloud services.

#### Certifications

Both score equally at 5/5.

●Langfuse (5/5): SOC 2 Type II and ISO 27001 certified with annual audits. HIPAA BAA available. Annual external penetration tests. Excellent certification posture for a developer tooling company.

●OVHcloud AI (5/5): ISO 27001, ISO 27017, ISO 27018, SOC 2 Type II, HDS (healthcare data hosting), and SecNumCloud qualification. Among the most comprehensively certified European cloud providers. HDS makes OVHcloud suitable for French healthcare AI workloads.

#### Regulatory Fit

OVHcloud AI leads with 5/5 vs 4/5.

●Langfuse (4/5): EU data hosting, GDPR DPA, German legal origin, self-hosting for regulated industries. HIPAA compliance extends reach to healthcare. The ClickHouse acquisition is the main caveat for sovereignty purists.

●OVHcloud AI (5/5): Maximum regulatory fit for European organisations. SecNumCloud for French public sector and defence-adjacent workloads. HDS for healthcare. GDPR-native design. NIS2-aligned operational resilience. The strongest sovereignty profile of any managed AI infrastructure provider.

Certifications at a Glance

Certification	Langfuse	OVHcloud AI
HDS	No	Yes
ISO 27001	Yes	Yes
ISO 27017	No	Yes
ISO 27018	No	Yes
SOC 2 Type II	Yes	Yes
SecNumCloud	No	Yes

Overall Verdict

OVHcloud AI has a clear trust advantage, scoring 25/25 compared to Langfuse's 22/25. OVHcloud AI particularly excels in legal jurisdiction, regulatory fit.

Frequently Asked Questions

Which is better for EU compliance, Langfuse or OVHcloud AI?

Langfuse has a TrustKit score of 22/25 while OVHcloud AI scores 25/25. OVHcloud AI currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Langfuse and OVHcloud AI compare on data residency?

Langfuse scores 5/5 for data residency (EU cloud region (Ireland) keeps data within EEA. Full self-hosting option allows air-gapped EU deployments with zero cloud dependency. Customer can choose exact data location.), while OVHcloud AI scores 5/5 (Exclusively European data centres with full EU sovereign cloud capabilities. SecNumCloud-qualified infrastructure for highest-sensitivity French public sector requirements. Multiple EU country options (France, Germany, UK, Poland). Maximum data residency score.).

Are Langfuse and OVHcloud AI GDPR compliant?

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

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