LangChain vs Datadog

Provides the dominant open-source framework for building AI agents plus LangSmith, a commercial platform for tracing, evaluating, and monitoring LLM-powered applications in production.

DevTools & AI Coding

Datadog

Cloud-scale observability platform that added LLM Observability for end-to-end tracing across AI agents with visibility into inputs, outputs, latency, token usage, and errors.

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