deepset (Haystack)

German AI company behind Haystack — the open-source framework for building production RAG and agent applications

OVHcloud AI

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

deepset (Haystack)

Excellent

24/25

OVHcloud AI

Excellent

25/25

Score Breakdown

Dimensiondeepset (Haystack)OVHcloud AI

Data Residency

Where is your data stored and processed?

deepset (Haystack): EU hosting available for managed platform. On-premises and air-gapped deployments fully supported. Open-source framework runs entirely locally with zero external data flow.

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 hosting available for managed platform. On-premises and air-gapped deployments fully supported. Open-source framework runs entirely locally with zero external data flow.

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?

deepset (Haystack): German GmbH, fully under EU law. Berlin headquarters. No US parent company. Investors include EU and US VCs but corporate governance remains German.

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.

5/5

German GmbH, fully under EU law. Berlin headquarters. No US parent company. Investors include EU and US VCs but corporate governance remains German.

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?

deepset (Haystack): Terms restrict data use to anonymised system data only. No explicit public 'we don't train' statement, but contractual restrictions are clear. Self-hosted gives full 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.

4/5

Terms restrict data use to anonymised system data only. No explicit public 'we don't train' statement, but contractual restrictions are clear. Self-hosted gives full 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.

deepset (Haystack): SOC 2 Type II, ISO 27001, HIPAA, and CSA STAR Level 1. Comprehensive certification suite for enterprise procurement. Third-party DPO (secjur).

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, ISO 27001, HIPAA, and CSA STAR Level 1. Comprehensive certification suite for enterprise procurement. Third-party DPO (secjur).

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

deepset (Haystack): German GmbH with EU hosting, self-hosting option, and strong certifications. One of the best-positioned AI developer tools for EU regulated industries including financial services and healthcare.

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.

5/5

German GmbH with EU hosting, self-hosting option, and strong certifications. One of the best-positioned AI developer tools for EU regulated industries including financial services and healthcare.

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

24/25

25/25

Best For

deepset (Haystack)

Best for EU-headquartered organisations needing maximum data sovereignty; organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, CSA STAR Level 1); 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

deepset (Haystack) vs OVHcloud AI: Trust & Compliance Comparison

deepset (Haystack) (deepset, DE) scores 24/25 overall with a Gold (Excellent) trust badge. German AI company behind Haystack — the open-source framework for building production RAG and agent applications. 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.

●deepset (Haystack) (5/5): EU hosting available for managed platform. On-premises and air-gapped deployments fully supported. Open-source framework runs entirely locally with zero external data flow.

●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

Both score equally at 5/5.

●deepset (Haystack) (5/5): German GmbH, fully under EU law. Berlin headquarters. No US parent company. Investors include EU and US VCs but corporate governance remains German.

●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

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

●deepset (Haystack) (4/5): Terms restrict data use to anonymised system data only. No explicit public 'we don't train' statement, but contractual restrictions are clear. Self-hosted gives full 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.

●deepset (Haystack) (5/5): SOC 2 Type II, ISO 27001, HIPAA, and CSA STAR Level 1. Comprehensive certification suite for enterprise procurement. Third-party DPO (secjur).

●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

Both score equally at 5/5.

●deepset (Haystack) (5/5): German GmbH with EU hosting, self-hosting option, and strong certifications. One of the best-positioned AI developer tools for EU regulated industries including financial services and healthcare.

●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	deepset (Haystack)	OVHcloud AI
CSA STAR Level 1	Yes	No
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

deepset (Haystack) and OVHcloud AI are closely matched on trust and compliance, with scores of 24/25 and 25/25 respectively. The right choice depends on your specific regulatory requirements and existing technology stack.

Frequently Asked Questions

Which is better for EU compliance, deepset (Haystack) or OVHcloud AI?

deepset (Haystack) has a TrustKit score of 24/25 while OVHcloud AI scores 25/25. OVHcloud AI currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do deepset (Haystack) and OVHcloud AI compare on data residency?

deepset (Haystack) scores 5/5 for data residency (EU hosting available for managed platform. On-premises and air-gapped deployments fully supported. Open-source framework runs entirely locally with zero external data flow.), 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 deepset (Haystack) and OVHcloud AI GDPR compliant?

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

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