LangSmith (LangChain)
LangChain, Inc. · langchain.com · Last checked:
- Hosted SaaS platform
- Self-hosted or BYOC deployment (Enterprise add-on)
Company status
Active, privately held.
Sources 1, 2, 3, 4 · checked 2026-11-08
Capabilities
- Tracing for LLM apps and agents
- Offline evaluation on datasets and online evaluation of production traffic
- Human, code, LLM-as-judge, and pairwise evaluators
- Prompt playground, agent deployment, and regional cloud instances
Sources 1, 2, 3, 4 · checked 2026-11-08
Who it tends to fit
- Teams building with LangChain or LangGraph that want native tracing and evals
- Enterprises that need self-hosted or hybrid deployment
Sources 1, 2, 3, 4 · checked 2026-11-08
Pricing
Developer: $0/seat per month, 1 seat, up to 5k base traces/month, then pay-as-you-go. Plus: $39/seat per month, up to 10k base traces/month, then pay-as-you-go. Enterprise: custom pricing, with self-hosted and hybrid deployment options.
Sources 1, 2, 3, 4 · checked 2026-11-08
Published certifications
- SOC 2 Type 2
- HIPAA compliant
- GDPR
Listed as stated by the vendor. Scope can differ by product or subsidiary; request current reports.
Sources 1, 2, 3, 4 · checked 2026-11-08
Limitations to check
- Pay-as-you-go trace rates beyond the included base traces were not shown in the fetched page text; check the pricing calculator
- Self-hosted LangSmith is an add-on to the Enterprise plan
Sources 1, 2, 3, 4 · checked 2026-11-08
Sources
- Developer $0/seat, Plus $39/seat, Enterprise custom; base trace allowances; self-hosted and hybrid on Enterprisewww.langchain.com/pricingChecked 2026-11-08
- Self-hosted LangSmith is an add-on to the Enterprise plandocs.langchain.com/langsmith/self-hostedChecked 2026-11-08
- LangSmith complies with GDPR, is SOC 2 Type 2 certified and HIPAA compliantdocs.langchain.com/langsmith/regions-faqChecked 2026-11-08
- Offline and online evaluations; human, code, LLM-as-judge, pairwise evaluatorsdocs.langchain.com/langsmith/evaluation-conceptsChecked 2026-11-08
Report a correction: [email protected]. Facts are re-checked at least every 90 days.