LangSmith
LangSmith is a unified platform for developing, debugging, testing, and monitoring applications built with large language models (LLMs). It provides tools to trace and visualize LLM calls, evaluate model performance, and manage prompts and datasets, helping developers build more reliable and efficient AI-powered applications. It is developed by LangChain and integrates seamlessly with the LangChain framework and other LLM libraries.
Developers should use LangSmith when building production-grade LLM applications to streamline the development lifecycle, from prototyping to deployment. It is essential for debugging complex chains of LLM calls, optimizing prompts, and ensuring consistent performance through automated testing and monitoring, making it particularly valuable for teams working on chatbots, agents, or any AI-driven software.