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Langfuse
Open Source LLM Engineering Platform

What is Langfuse?

Langfuse is an open-source platform designed to help teams build and maintain complex Language Model (LLM) applications. It offers a comprehensive suite of tools for tracing, evaluating, prompt management, and monitoring metrics, enabling efficient debugging and continuous improvement of LLM applications. The platform prioritizes enterprise security and is SOC 2 Type II and ISO 27001 certified, and GDPR compliant.

Langfuse integrates seamlessly with popular development tools and frameworks, including Python SDK, JS/TS SDK, OpenAI SDK, Langchain, and Llama-Index, among others. It offers robust features for managing the entire lifecycle of LLM application development and deployment.

Features

  • LLM Tracing: Provides detailed insights into application performance and behavior.
  • Prompt Management: Tools for creating, versioning, and managing prompts.
  • Evaluation: Evaluate prompts and models for various cases.
  • Manual Annotation: Annotate data to further improve models.
  • Datasets: Organize data for efficient training and evaluation.
  • Metrics: Monitor key performance indicators to track application health.

Use Cases

  • Debugging LLM application performance issues.
  • Improving prompt quality and effectiveness.
  • Evaluating the performance of different LLM models.
  • Monitoring LLM application behavior in production.
  • Collecting and managing datasets for LLM training.
  • Collaborating on LLM application development.

FAQs

  • What is the easiest way to try Langfuse?
    The easiest way to try is by signing up for the free Hobby plan, no credit card is required.
  • What is an observation?
    Langfuse did not specify what an observation is, please refer to the Langfuse documentation.
  • Can I self-host Langfuse?
    Yes, Langfuse offers a self-hosted option.
  • Where is the data stored?
    Data can be stored in the US or EU region.
  • Do you offer discounts?
    Yes, Langfuse offers discounts for early-stage startups, education/non-profits, and open-source projects.

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