Together AI

Open-source LLM inference and fine-tuning platform for enterprise AI builders

Nebius AI

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

Together AI

Caution

10/25

Nebius AI

Strong

20/25

Score Breakdown

DimensionTogether AINebius AI

Data Residency

Where is your data stored and processed?

Together AI: All inference and fine-tuning workloads processed in US data centres. No EU data residency option. GDPR transfer mechanisms (SCCs) required for European personal data processing.

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.

1/5

All inference and fine-tuning workloads processed in US data centres. No EU data residency option. GDPR transfer mechanisms (SCCs) required for European personal data processing.

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?

Together AI: Incorporated in Delaware, US. Subject to CLOUD Act. GDPR DPA available for enterprise customers contractually, but US jurisdiction governs. No EU subsidiary structure.

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

Incorporated in Delaware, US. Subject to CLOUD Act. GDPR DPA available for enterprise customers contractually, but US jurisdiction governs. No EU subsidiary structure.

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?

Together AI: Clear policy that customer data and fine-tuning datasets are not used to train shared models. Fine-tuned model weights are customer property. Good baseline for data isolation, but residency limitation remains.

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

Clear policy that customer data and fine-tuning datasets are not used to train shared models. Fine-tuned model weights are customer property. Good baseline for data isolation, but residency limitation remains.

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.

Together AI: No published ISO 27001, SOC 2 Type II, or independent security certifications as of early 2026. Security practices are self-attested. Significant gap for enterprise procurement in regulated industries.

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.

1/5

No published ISO 27001, SOC 2 Type II, or independent security certifications as of early 2026. Security practices are self-attested. Significant gap for enterprise procurement in regulated industries.

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

Together AI: Not suitable for GDPR-regulated personal data processing without SCCs and TIA. Good for development, prototyping, and non-personal-data AI workloads. US jurisdiction and absence of certifications limit suitability for regulated EU industries.

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.

2/5

Not suitable for GDPR-regulated personal data processing without SCCs and TIA. Good for development, prototyping, and non-personal-data AI workloads. US jurisdiction and absence of certifications limit suitability for regulated EU industries.

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

10/25

20/25

Best For

Together 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.

Nebius AI

Best for privacy-conscious teams who need strong data retention controls; teams on a tight budget.

Detailed Comparison

Nebius AI vs Together AI: Trust & Compliance Comparison

Nebius AI (Nebius, NL) scores 20/25 overall with a Silver (Strong) trust badge. European GPU cloud and LLM inference platform built for AI-native businesses. Together AI (Together AI, US) scores 10/25 with a Review Required (Caution) trust badge. Open-source LLM inference and fine-tuning platform for enterprise AI builders.

Dimension-by-Dimension Breakdown

#### Data Residency

Nebius AI leads with 5/5 vs 1/5.

●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.

●Together AI (1/5): All inference and fine-tuning workloads processed in US data centres. No EU data residency option. GDPR transfer mechanisms (SCCs) required for European personal data processing.

#### Legal Jurisdiction

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

●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.

●Together AI (2/5): Incorporated in Delaware, US. Subject to CLOUD Act. GDPR DPA available for enterprise customers contractually, but US jurisdiction governs. No EU subsidiary structure.

#### Data Retention & Training

Both score equally at 4/5.

●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.

●Together AI (4/5): Clear policy that customer data and fine-tuning datasets are not used to train shared models. Fine-tuned model weights are customer property. Good baseline for data isolation, but residency limitation remains.

#### Certifications

Nebius AI leads with 3/5 vs 1/5.

●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.

●Together AI (1/5): No published ISO 27001, SOC 2 Type II, or independent security certifications as of early 2026. Security practices are self-attested. Significant gap for enterprise procurement in regulated industries.

#### Regulatory Fit

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

●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.

●Together AI (2/5): Not suitable for GDPR-regulated personal data processing without SCCs and TIA. Good for development, prototyping, and non-personal-data AI workloads. US jurisdiction and absence of certifications limit suitability for regulated EU industries.

Certifications at a Glance

Certification	Nebius AI	Together AI
ISO 27001	Yes	No

Overall Verdict

Nebius AI has a clear trust advantage, scoring 20/25 compared to Together AI's 10/25. Nebius AI particularly excels in data residency, legal jurisdiction, certifications, regulatory fit.

Frequently Asked Questions

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

Together AI has a TrustKit score of 10/25 while Nebius AI scores 20/25. Nebius AI currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

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

Together AI scores 1/5 for data residency (All inference and fine-tuning workloads processed in US data centres. No EU data residency option. GDPR transfer mechanisms (SCCs) required for European personal data processing.), 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 Together AI and Nebius AI GDPR compliant?

Both tools are assessed across five compliance dimensions. Together AI has a regulatory fit score of 2/5 and Nebius AI scores 4/5. Check the full comparison above for a detailed breakdown.

Explore Each Tool