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What is Langfuse?

Langfuse is an open-source platform designed for LLM engineering that allows teams to debug, analyze, and refine their LLM applications at no cost. With its observability feature, you can seamlessly integrate Langfuse into your application to begin capturing traces effectively. The Langfuse UI provides tools to examine and troubleshoot intricate logs as well as user sessions. Additionally, Langfuse enables you to manage prompt versions and deployments with ease through its dedicated prompts feature. In terms of analytics, Langfuse facilitates the tracking of vital metrics such as cost, latency, and overall quality of LLM outputs, delivering valuable insights via dashboards and data exports. The evaluation tool allows for the calculation and collection of scores related to your LLM completions, ensuring a thorough performance assessment. You can also conduct experiments to monitor application behavior, allowing for testing prior to the deployment of any new versions. What sets Langfuse apart is its open-source nature, compatibility with various models and frameworks, robust production readiness, and the ability to incrementally adapt by starting with a single LLM integration and gradually expanding to comprehensive tracing for more complex workflows. Furthermore, you can utilize GET requests to develop downstream applications and export relevant data as needed, enhancing the versatility and functionality of your projects.

What is DeepEval?

DeepEval presents an accessible open-source framework specifically engineered for evaluating and testing large language models, akin to Pytest, but focused on the unique requirements of assessing LLM outputs. It employs state-of-the-art research methodologies to quantify a variety of performance indicators, such as G-Eval, hallucination rates, answer relevance, and RAGAS, all while utilizing LLMs along with other NLP models that can run locally on your machine. This tool's adaptability makes it suitable for projects created through approaches like RAG, fine-tuning, LangChain, or LlamaIndex. By adopting DeepEval, users can effectively investigate optimal hyperparameters to refine their RAG workflows, reduce prompt drift, or seamlessly transition from OpenAI services to managing their own Llama2 model on-premises. Moreover, the framework boasts features for generating synthetic datasets through innovative evolutionary techniques and integrates effortlessly with popular frameworks, establishing itself as a vital resource for the effective benchmarking and optimization of LLM systems. Its all-encompassing approach guarantees that developers can fully harness the capabilities of their LLM applications across a diverse array of scenarios, ultimately paving the way for more robust and reliable language model performance.

Media

Media

Integrations Supported

Hugging Face
LangChain
LlamaIndex
OpenAI
Claude
Flowise
KitchenAI
Lamatic.ai
LiteLLM
Llama 2
Mirascope
Opik
Ragas

Integrations Supported

Hugging Face
LangChain
LlamaIndex
OpenAI
Claude
Flowise
KitchenAI
Lamatic.ai
LiteLLM
Llama 2
Mirascope
Opik
Ragas

API Availability

Has API

API Availability

Has API

Pricing Information

$29/month
Free Trial Offered?
Free Version

Pricing Information

Free
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Langfuse

Date Founded

2023

Company Location

Germany

Company Website

langfuse.com

Company Facts

Organization Name

Confident AI

Company Location

United States

Company Website

docs.confident-ai.com

Categories and Features

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