Portkey

AI gateway and LLMOps platform for routing, observability, and guardrails across multiple LLM providers

LangSmith (LangChain)

LLM observability, testing, and deployment platform for production AI applications

Portkey

Moderate

15/25

LangSmith (LangChain)

Moderate

13/25

Score Breakdown

DimensionPortkeyLangSmith (LangChain)

Data Residency

Where is your data stored and processed?

Portkey: US cloud by default but self-hosted deployment option allows EU data residency. Gateway architecture means LLM requests can be routed to EU-hosted providers.

LangSmith (LangChain): Cloud product processes trace data (including prompts and LLM outputs) in US infrastructure. Self-hosted LangSmith Enterprise enables EU data residency. Open-source LangChain framework can run fully on-premise.

3/5

US cloud by default but self-hosted deployment option allows EU data residency. Gateway architecture means LLM requests can be routed to EU-hosted providers.

2/5

Cloud product processes trace data (including prompts and LLM outputs) in US infrastructure. Self-hosted LangSmith Enterprise enables EU data residency. Open-source LangChain framework can run fully on-premise.

Legal Jurisdiction

Which laws govern the company and your data?

Portkey: Delaware incorporation. US jurisdiction. Self-hosted option eliminates cloud dependency for data-sensitive deployments.

LangSmith (LangChain): California incorporation, US jurisdiction, CLOUD Act applies. SOC 2 Type II and GDPR DPA available. Self-hosted enterprise removes US cloud dependency for EU deployments.

2/5

Delaware incorporation. US jurisdiction. Self-hosted option eliminates cloud dependency for data-sensitive deployments.

2/5

California incorporation, US jurisdiction, CLOUD Act applies. SOC 2 Type II and GDPR DPA available. Self-hosted enterprise removes US cloud dependency for EU deployments.

Data Retention & Training

Is your data used for model training?

Portkey: Gateway does not train on routed data. Observability logs are retained per customer policy. Self-hosted gives full control.

LangSmith (LangChain): Trace data not used for LLM training. Configurable trace retention periods. Enterprise self-hosted gives full control over data lifecycle. Cloud product has clear data isolation per project.

4/5

Gateway does not train on routed data. Observability logs are retained per customer policy. Self-hosted gives full control.

4/5

Trace data not used for LLM training. Configurable trace retention periods. Enterprise self-hosted gives full control over data lifecycle. Cloud product has clear data isolation per project.

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Portkey: SOC 2 Type II certified. Appropriate for the company's stage. ISO 27001 would strengthen enterprise procurement.

LangSmith (LangChain): SOC 2 Type II certification. Appropriate for a developer tooling company. ISO 27001 would strengthen the posture for enterprise regulated-industry procurement.

3/5

SOC 2 Type II certified. Appropriate for the company's stage. ISO 27001 would strengthen enterprise procurement.

3/5

SOC 2 Type II certification. Appropriate for a developer tooling company. ISO 27001 would strengthen the posture for enterprise regulated-industry procurement.

Regulatory Fit

Suitability for regulated industries and professional services

Portkey: Self-hosted option enables EU deployment. SOC 2 certified. US jurisdiction applies to cloud product. Suitable for European teams managing multi-model AI infrastructure.

LangSmith (LangChain): Cloud product requires GDPR transfer mechanisms for EU personal data in traces. Self-hosted LangSmith Enterprise is the appropriate deployment for EU regulated industries. Open-source framework usage is unrestricted.

3/5

Self-hosted option enables EU deployment. SOC 2 certified. US jurisdiction applies to cloud product. Suitable for European teams managing multi-model AI infrastructure.

2/5

Cloud product requires GDPR transfer mechanisms for EU personal data in traces. Self-hosted LangSmith Enterprise is the appropriate deployment for EU regulated industries. Open-source framework usage is unrestricted.

Total Score

15/25

13/25

Best For

Portkey

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.

LangSmith (LangChain)

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.

Detailed Comparison

LangSmith (LangChain) vs Portkey: Trust & Compliance Comparison

LangSmith (LangChain) (LangChain, US) scores 13/25 overall with a Bronze (Moderate) trust badge. LLM observability, testing, and deployment platform for production AI applications. Portkey (Portkey, US) scores 15/25 with a Bronze (Moderate) trust badge. AI gateway and LLMOps platform for routing, observability, and guardrails across multiple LLM providers.

Dimension-by-Dimension Breakdown

#### Data Residency

Portkey leads with 3/5 vs 2/5.

●LangSmith (LangChain) (2/5): Cloud product processes trace data (including prompts and LLM outputs) in US infrastructure. Self-hosted LangSmith Enterprise enables EU data residency. Open-source LangChain framework can run fully on-premise.

●Portkey (3/5): US cloud by default but self-hosted deployment option allows EU data residency. Gateway architecture means LLM requests can be routed to EU-hosted providers.

#### Legal Jurisdiction

Both score equally at 2/5.

●LangSmith (LangChain) (2/5): California incorporation, US jurisdiction, CLOUD Act applies. SOC 2 Type II and GDPR DPA available. Self-hosted enterprise removes US cloud dependency for EU deployments.

●Portkey (2/5): Delaware incorporation. US jurisdiction. Self-hosted option eliminates cloud dependency for data-sensitive deployments.

#### Data Retention & Training

Both score equally at 4/5.

●LangSmith (LangChain) (4/5): Trace data not used for LLM training. Configurable trace retention periods. Enterprise self-hosted gives full control over data lifecycle. Cloud product has clear data isolation per project.

●Portkey (4/5): Gateway does not train on routed data. Observability logs are retained per customer policy. Self-hosted gives full control.

#### Certifications

Both score equally at 3/5.

●LangSmith (LangChain) (3/5): SOC 2 Type II certification. Appropriate for a developer tooling company. ISO 27001 would strengthen the posture for enterprise regulated-industry procurement.

●Portkey (3/5): SOC 2 Type II certified. Appropriate for the company's stage. ISO 27001 would strengthen enterprise procurement.

#### Regulatory Fit

Portkey leads with 3/5 vs 2/5.

●LangSmith (LangChain) (2/5): Cloud product requires GDPR transfer mechanisms for EU personal data in traces. Self-hosted LangSmith Enterprise is the appropriate deployment for EU regulated industries. Open-source framework usage is unrestricted.

●Portkey (3/5): Self-hosted option enables EU deployment. SOC 2 certified. US jurisdiction applies to cloud product. Suitable for European teams managing multi-model AI infrastructure.

Certifications at a Glance

Certification	LangSmith (LangChain)	Portkey
SOC 2 Type II	Yes	Yes

Overall Verdict

Portkey has a clear trust advantage, scoring 15/25 compared to LangSmith (LangChain)'s 13/25. Portkey particularly excels in data residency, regulatory fit.

Frequently Asked Questions

Which is better for EU compliance, Portkey or LangSmith (LangChain)?

Portkey has a TrustKit score of 15/25 while LangSmith (LangChain) scores 13/25. Portkey currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Portkey and LangSmith (LangChain) compare on data residency?

Portkey scores 3/5 for data residency (US cloud by default but self-hosted deployment option allows EU data residency. Gateway architecture means LLM requests can be routed to EU-hosted providers.), while LangSmith (LangChain) scores 2/5 (Cloud product processes trace data (including prompts and LLM outputs) in US infrastructure. Self-hosted LangSmith Enterprise enables EU data residency. Open-source LangChain framework can run fully on-premise.).

Are Portkey and LangSmith (LangChain) GDPR compliant?

Both tools are assessed across five compliance dimensions. Portkey has a regulatory fit score of 3/5 and LangSmith (LangChain) scores 2/5. Check the full comparison above for a detailed breakdown.

Explore Each Tool

Portkey

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60%

LangSmith (LangChain)

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52%