Langfuse is an open-source LLM (Low-Code Low-Magic) application analytics tool that provides detailed production monitoring and granular insights into quality, cost, and latency. It empowers teams to better track and debug complex LLM applications by offering pre-built analytics functionalities, allowing teams to focus on key performance indicators for their LLM applications. Langfuse integrates with any LLM application and offers various SDKs and APIs for developers.