deepset (Haystack)

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

Databricks (Mosaic AI)

Unified data and AI lakehouse platform for enterprise-scale machine learning

deepset (Haystack)

Excellent

24/25

Databricks (Mosaic AI)

Excellent

22/25

Score Breakdown

Dimensiondeepset (Haystack)Databricks (Mosaic 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.

Databricks (Mosaic AI): Data resides entirely within the customer's own cloud account across all major global regions; VPC injection ensures no shared infrastructure

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

Data resides entirely within the customer's own cloud account across all major global regions; VPC injection ensures no shared infrastructure

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.

Databricks (Mosaic AI): US Delaware corporation subject to CLOUD Act; SCCs and DPAs available for EU/UK transfers

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.

2/5

US Delaware corporation subject to CLOUD Act; SCCs and DPAs available for EU/UK transfers

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.

Databricks (Mosaic AI): Customer controls all data retention; Databricks has no access to data stored in customer cloud accounts

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 controls all data retention; Databricks has no access to data stored in customer cloud accounts

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).

Databricks (Mosaic AI): SOC 2 Type II, ISO 27001/17/18, HIPAA, FedRAMP Moderate, PCI DSS, and HITRUST certified

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

SOC 2 Type II, ISO 27001/17/18, HIPAA, FedRAMP Moderate, PCI DSS, and HITRUST certified

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.

Databricks (Mosaic AI): Purpose-built for regulated enterprise workloads; suitable for healthcare, financial services, and government

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

Purpose-built for regulated enterprise workloads; suitable for healthcare, financial services, and government

Total Score

24/25

22/25

Best For

deepset (Haystack)

Best for organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, ISO 27017); regulated industries (ICO, HHS); privacy-conscious teams who need strong data retention controls; organisations that need self-hosted or on-premise deployment.

Databricks (Mosaic AI)

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.

Detailed Comparison

Databricks (Mosaic AI) vs deepset (Haystack): Trust & Compliance Comparison

Databricks (Mosaic AI) (Databricks, US) scores 22/25 overall with a Gold (Excellent) trust badge. Unified data and AI lakehouse platform for enterprise-scale machine learning. deepset (Haystack) (deepset, DE) scores 24/25 with a Gold (Excellent) trust badge. German AI company behind Haystack — the open-source framework for building production RAG and agent applications.

Dimension-by-Dimension Breakdown

#### Data Residency

Both score equally at 5/5.

●Databricks (Mosaic AI) (5/5): Data resides entirely within the customer's own cloud account across all major global regions; VPC injection ensures no shared infrastructure

●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.

#### Legal Jurisdiction

deepset (Haystack) leads with 5/5 vs 2/5.

●Databricks (Mosaic AI) (2/5): US Delaware corporation subject to CLOUD Act; SCCs and DPAs available for EU/UK transfers

●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.

#### Data Retention & Training

Databricks (Mosaic AI) leads with 5/5 vs 4/5.

●Databricks (Mosaic AI) (5/5): Customer controls all data retention; Databricks has no access to data stored in customer cloud accounts

●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.

#### Certifications

Both score equally at 5/5.

●Databricks (Mosaic AI) (5/5): SOC 2 Type II, ISO 27001/17/18, HIPAA, FedRAMP Moderate, PCI DSS, and HITRUST certified

●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).

#### Regulatory Fit

Both score equally at 5/5.

●Databricks (Mosaic AI) (5/5): Purpose-built for regulated enterprise workloads; suitable for healthcare, financial services, and government

●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.

Certifications at a Glance

Certification	Databricks (Mosaic AI)	deepset (Haystack)
CSA STAR Level 1	No	Yes
FedRAMP Moderate	Yes	No
HIPAA	Yes	No
HITRUST	Yes	No
ISO 27001	Yes	Yes
ISO 27017	Yes	No
ISO 27018	Yes	No
PCI DSS	Yes	No
SOC 2 Type II	Yes	Yes

Overall Verdict

deepset (Haystack) has a clear trust advantage, scoring 24/25 compared to Databricks (Mosaic AI)'s 22/25. deepset (Haystack) particularly excels in legal jurisdiction.

Frequently Asked Questions

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

deepset (Haystack) has a TrustKit score of 24/25 while Databricks (Mosaic AI) scores 22/25. deepset (Haystack) currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do deepset (Haystack) and Databricks (Mosaic 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 Databricks (Mosaic AI) scores 5/5 (Data resides entirely within the customer's own cloud account across all major global regions; VPC injection ensures no shared infrastructure).

Are deepset (Haystack) and Databricks (Mosaic AI) GDPR compliant?

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

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deepset (Haystack)

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Databricks (Mosaic AI)

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