LangChain updated its Terms of Service on May 22, 2026 to clarify deployment options and data protection commitments. The company introduced a new 'Bring Your Own Cloud Deployment' (BYOC) option, redefined 'Hybrid Deployment' to specify that LangChain operates the control plane while customers operate the data plane, and explicitly extended its commitment not to use customer data for training to include 'large language models.' The disclaimer clause was also expanded to state the platform is not warranted to be 'accurate' or 'complete.' These changes affect how customers understand their deployment choices and what data protections apply.
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.
→ Review the BYOC Deployment option to determine if it aligns with your infrastructure and data residency requirements.
→ Confirm whether your current deployment (Cloud or Hybrid) matches the updated Hybrid Deployment definition, which clarifies that customer now operates the data plane.
New deployment option allows customers to run LangSmith within their own infrastructure with LangChain operating through APIs without direct access to customer data.
Redefined to clarify control plane is operated by LangChain and data plane by customer, removing the prior option for LangChain to manage the data plane.
Extended to explicitly exclude use of customer data for training large language models, not just general product improvement.
This change record describes what was added, removed, or modified in the document. Analysis reflects what the updated agreement states or permits. It does not constitute a legal determination about enforceability. Applicability may vary by jurisdiction. Methodology
LangChain clarified its deployment architecture terminology and added a BYOC option, which may affect how organizations document vendor infrastructure controls in their security and data processing frameworks. The explicit extension of data-use restrictions to exclude …
Regulatory exposure, obligation change, escalation trigger, board-ready language, and recommended action for legal and compliance teams.
Unlock the full institutional analysis — InsightConductAtlas provides verified policy intelligence sourced directly from platform documents. All analysis is intended to support, not replace, legal and compliance review. Record CA-C-002279.
LangChain modified the title and scope of a data protection clause in its Terms of Service on June 4, 2026. …
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