Helicone AI

Open-source LLM observability and monitoring platform for AI applications

Nebius AI

European GPU cloud and LLM inference platform built for AI-native businesses

Helicone AI

Moderate

14/25

Nebius AI

Strong

20/25

Score Breakdown

DimensionHelicone AINebius AI

Data Residency

Where is your data stored and processed?

Helicone AI: Self-host option gives full control over data residency. Cloud version hosted on US infrastructure. Self-hosting enables any region.

Nebius AI: Data centres located in Finland and the Netherlands—both EU member states. Inference and compute workloads remain within EU borders. Strong data residency story for European AI builders.

3/5

Self-host option gives full control over data residency. Cloud version hosted on US infrastructure. Self-hosting enables any region.

5/5

Data centres located in Finland and the Netherlands—both EU member states. Inference and compute workloads remain within EU borders. Strong data residency story for European AI builders.

Legal Jurisdiction

Which laws govern the company and your data?

Helicone AI: US entity. Cloud version subject to US jurisdiction. Self-hosted deployment avoids jurisdictional concerns.

Nebius AI: Incorporated as Nebius Group N.V. under Dutch law. EU legal jurisdiction applies, with no CLOUD Act exposure. Corporate history as Yandex spin-off warrants due diligence on ownership structure, but current governance is EU-based.

2/5

US entity. Cloud version subject to US jurisdiction. Self-hosted deployment avoids jurisdictional concerns.

4/5

Incorporated as Nebius Group N.V. under Dutch law. EU legal jurisdiction applies, with no CLOUD Act exposure. Corporate history as Yandex spin-off warrants due diligence on ownership structure, but current governance is EU-based.

Data Retention & Training

Is your data used for model training?

Helicone AI: Self-hosted deployment provides complete data control. No data leaves the organisation's infrastructure. Cloud version does not use customer data for training.

Nebius AI: Customer inference requests and training data are not used to train shared models. Tenant isolation architecture. GDPR-compliant data processing posture with configurable retention for enterprise customers.

4/5

Self-hosted deployment provides complete data control. No data leaves the organisation's infrastructure. Cloud version does not use customer data for training.

4/5

Customer inference requests and training data are not used to train shared models. Tenant isolation architecture. GDPR-compliant data processing posture with configurable retention for enterprise customers.

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Helicone AI: No formal security certifications. Open-source codebase allows security auditing. Early-stage startup.

Nebius AI: ISO 27001 certification in place. As a relatively new independent entity, the broader certification portfolio (SOC 2 Type II, ISO 27701) is still developing. Expect maturation over 2025-2026.

2/5

No formal security certifications. Open-source codebase allows security auditing. Early-stage startup.

3/5

ISO 27001 certification in place. As a relatively new independent entity, the broader certification portfolio (SOC 2 Type II, ISO 27701) is still developing. Expect maturation over 2025-2026.

Regulatory Fit

Suitability for regulated industries and professional services

Helicone AI: Self-hosting capability makes it suitable for regulated environments. Organisations can audit the open-source code and maintain full data sovereignty.

Nebius AI: Excellent fit for European organisations building AI applications and needing EU-sovereign inference infrastructure. Dutch incorporation, EU data centres, and GDPR-compliant DPA make this suitable for most regulated EU use cases. Financial services and healthcare organisations should review specifics with Nebius.

3/5

Self-hosting capability makes it suitable for regulated environments. Organisations can audit the open-source code and maintain full data sovereignty.

4/5

Excellent fit for European organisations building AI applications and needing EU-sovereign inference infrastructure. Dutch incorporation, EU data centres, and GDPR-compliant DPA make this suitable for most regulated EU use cases. Financial services and healthcare organisations should review specifics with Nebius.

Total Score

14/25

20/25

Best For

Helicone AI

Best for privacy-conscious teams who need strong data retention controls; organisations that need self-hosted or on-premise deployment; teams on a tight budget.

Nebius AI

Best for EU-headquartered organisations needing maximum data sovereignty; regulated industries (CNIL, BaFin); privacy-conscious teams who need strong data retention controls; enterprises requiring SSO integration.

Detailed Comparison

Helicone AI vs Nebius AI: Trust & Compliance Comparison

Helicone AI (Helicone, US) scores 14/25 overall with a Bronze (Moderate) trust badge. Open-source LLM observability and monitoring platform for AI applications. Nebius AI (Nebius, NL) scores 20/25 with a Silver (Strong) trust badge. European GPU cloud and LLM inference platform built for AI-native businesses.

Dimension-by-Dimension Breakdown

#### Data Residency

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

●Helicone AI (3/5): Self-host option gives full control over data residency. Cloud version hosted on US infrastructure. Self-hosting enables any region.

●Nebius AI (5/5): Data centres located in Finland and the Netherlands—both EU member states. Inference and compute workloads remain within EU borders. Strong data residency story for European AI builders.

#### Legal Jurisdiction

Nebius AI leads with 4/5 vs 2/5.

●Helicone AI (2/5): US entity. Cloud version subject to US jurisdiction. Self-hosted deployment avoids jurisdictional concerns.

●Nebius AI (4/5): Incorporated as Nebius Group N.V. under Dutch law. EU legal jurisdiction applies, with no CLOUD Act exposure. Corporate history as Yandex spin-off warrants due diligence on ownership structure, but current governance is EU-based.

#### Data Retention & Training

Both score equally at 4/5.

●Helicone AI (4/5): Self-hosted deployment provides complete data control. No data leaves the organisation's infrastructure. Cloud version does not use customer data for training.

●Nebius AI (4/5): Customer inference requests and training data are not used to train shared models. Tenant isolation architecture. GDPR-compliant data processing posture with configurable retention for enterprise customers.

#### Certifications

Nebius AI leads with 3/5 vs 2/5.

●Helicone AI (2/5): No formal security certifications. Open-source codebase allows security auditing. Early-stage startup.

●Nebius AI (3/5): ISO 27001 certification in place. As a relatively new independent entity, the broader certification portfolio (SOC 2 Type II, ISO 27701) is still developing. Expect maturation over 2025-2026.

#### Regulatory Fit

Nebius AI leads with 4/5 vs 3/5.

●Helicone AI (3/5): Self-hosting capability makes it suitable for regulated environments. Organisations can audit the open-source code and maintain full data sovereignty.

●Nebius AI (4/5): Excellent fit for European organisations building AI applications and needing EU-sovereign inference infrastructure. Dutch incorporation, EU data centres, and GDPR-compliant DPA make this suitable for most regulated EU use cases. Financial services and healthcare organisations should review specifics with Nebius.

Certifications at a Glance

Certification	Helicone AI	Nebius AI
ISO 27001	No	Yes

Overall Verdict

Nebius AI has a clear trust advantage, scoring 20/25 compared to Helicone AI's 14/25. Nebius AI particularly excels in data residency, legal jurisdiction, certifications, regulatory fit.

Frequently Asked Questions

Which is better for EU compliance, Helicone AI or Nebius AI?

Helicone AI has a TrustKit score of 14/25 while Nebius AI scores 20/25. Nebius AI currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Helicone AI and Nebius AI compare on data residency?

Helicone AI scores 3/5 for data residency (Self-host option gives full control over data residency. Cloud version hosted on US infrastructure. Self-hosting enables any region.), while Nebius AI scores 5/5 (Data centres located in Finland and the Netherlands—both EU member states. Inference and compute workloads remain within EU borders. Strong data residency story for European AI builders.).

Are Helicone AI and Nebius AI GDPR compliant?

Both tools are assessed across five compliance dimensions. Helicone AI has a regulatory fit score of 3/5 and Nebius AI scores 4/5. Check the full comparison above for a detailed breakdown.

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