LangSmith

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SKU: langsmith
LangSmith is an all-in-one developer platform designed to support the entire lifecycle of LLM-powered applications. It provides tools for debugging, collaboration, testing, and monitoring, enabling developers to gain deep visibility into their applications' behavior. With features like tracing, evaluation, prompt management, and dataset construction, LangSmith facilitates the development of reliable and efficient LLM applications. It integrates seamlessly with various frameworks, including LangChain, and supports both online and offline evaluation methods to ensure continuous improvement and quality assurance.
LLM observability model evaluation prompt management developer tools AI debugging
Monitoring and debugging LLM applications through detailed tracing.
Evaluating model performance using built-in and custom evaluators.
Managing and versioning prompts to ensure consistent outputs.
Collaborating with team members to refine application behavior.
LangSmith is primarily a monitoring, debugging, and observability platform rather than an autonomous AI agent. It requires explicit developer configuration for tracing LLM chains/agents (via SDK integrations or environment variables) and manual analysis of logged runs. While it automates data collection/visualization, all core decision-making remains under developer control through instrumentation requirements and workflow customization.
Closed Source
Free