LangSmith LLM Gateway locks API keys to permitted models, blocking everything else

LangChain · x · 2026-09-14

LangChain launched LangSmith LLM Gateway for org-wide model access governance: keys can be locked to permitted models, and any attempt to call a non-permitted model is automatically blocked. The team demos a key allowed only for Opus 5 being denied when it tries Sonnet 5.

Related event: LangChain Launches LangSmith LLM Gateway for Model Access Governance(2 posts)→

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