Helicone AI

Open-source LLM observability and monitoring platform for AI applications

LangSmith (LangChain)

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

Helicone AI

Moderate

14/25

LangSmith (LangChain)

Moderate

13/25

Score Breakdown

DimensionHelicone AILangSmith (LangChain)

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.

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

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

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?

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

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

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

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?

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.

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

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

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.

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

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

2/5

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

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

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

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

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

14/25

13/25

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.

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; enterprises requiring SSO integration.

Detailed Comparison

Helicone AI vs LangSmith (LangChain): 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. LangSmith (LangChain) (LangChain, US) scores 13/25 with a Bronze (Moderate) trust badge. LLM observability, testing, and deployment platform for production AI applications.

Dimension-by-Dimension Breakdown

#### Data Residency

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

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

●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.

#### Legal Jurisdiction

Both score equally at 2/5.

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

●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.

#### 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.

●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.

#### Certifications

LangSmith (LangChain) leads with 3/5 vs 2/5.

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

●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.

#### Regulatory Fit

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

●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.

●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.

Certifications at a Glance

Certification	Helicone AI	LangSmith (LangChain)
SOC 2 Type II	No	Yes

Overall Verdict

Helicone AI and LangSmith (LangChain) are closely matched on trust and compliance, with scores of 14/25 and 13/25 respectively. The right choice depends on your specific regulatory requirements and existing technology stack.

Frequently Asked Questions

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

Helicone AI has a TrustKit score of 14/25 while LangSmith (LangChain) scores 13/25. Helicone AI currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Helicone AI and LangSmith (LangChain) 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 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 Helicone AI and LangSmith (LangChain) GDPR compliant?

Both tools are assessed across five compliance dimensions. Helicone AI 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

Helicone AI

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56%

LangSmith (LangChain)

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52%