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.