The agreement prohibits LangChain from using Customer Data, which includes all inputs and outputs submitted or generated through the LangSmith Platform, to train or improve its AI products or large language models.
This analysis describes what LangChain's agreement states, permits, or reserves. It does not constitute a legal determination about enforceability. Regulatory applicability and practical outcomes may vary by jurisdiction, enforcement context, and individual circumstances. Read our methodology
This provision establishes a contractual commitment that directly addresses a material concern in enterprise AI platform procurement: whether platform-processed data may be used to improve vendor AI systems. Breach of this provision would constitute a material breach under Section 9.4, triggering Customer's right to terminate and potentially seek damages within the liability cap.
The updated terms introduce a new deployment architecture option (BYOC) alongside existing Cloud and Hybrid options, giving customers more control over infrastructure placement. LangChain's explicit commitment to not use customer data for large language model training now has clear written language in the Terms, whereas the prior version only referenced 'products' generically. However, the expanded non-warranty clause now states the platform is not warranted to be 'accurate' or 'complete,' which broadens the disclaimers of liability. Customers should review which deployment option aligns with their infrastructure and compliance requirements.
View change record →Under this clause, Customer Data processed through the LangSmith Platform is contractually protected from use in LangChain AI model training or product improvement. This provision applies to all deployment types (Cloud, BYOC, Hybrid, and Self-Hosted) as Customer Data is defined broadly to include all inputs and outputs.
Cross-platform context
See how other platforms handle AI Training Data Prohibition and similar clauses.
Compare across platforms →"LangChain agrees that it will not use Customer Data to train on, develop, or otherwise improve its products, including any large language models.Excerpt from LangChain's Terms of Service
(1) REGULATORY LANDSCAPE: This provision interacts with GDPR Article 5 purpose limitation principles for EU and EEA customers, reinforcing that Personal Data processed through the platform is not repurposed for model training.
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This provision establishes a contractual commitment that directly addresses a material concern in enterprise AI platform procurement: whether platform-processed data may be used to improve vendor AI systems. Breach of this provision would constitute a material breach under Section 9.4, triggering Customer's right to terminate and potentially seek damages within the liability cap.
Under this clause, Customer Data processed through the LangSmith Platform is contractually protected from use in LangChain AI model training or product improvement. This provision applies to all deployment types (Cloud, BYOC, Hybrid, and Self-Hosted) as Customer Data is defined broadly to include all inputs and outputs.
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