Langfuse

Langfuse is an open-source platform offering observability and analytics for Language Learning Model applications. It provides detailed production traces, quality, cost, and latency metrics. Features include debugging for complex LLM apps, cost calculation, tracking non-LLM actions, and native integrations with various models and frameworks. Langfuse offers prebuilt dashboards for cost, quality, and latency analytics, and a public API for custom features. It supports Python and JS/TS SDKs, Langchain integration, and is suitable for any LLM app.