Software Alternatives, Accelerators & Startups

Langfuse VS LangWatch

Compare Langfuse VS LangWatch and see what are their differences

Langfuse logo Langfuse

Langfuse is an open-source LLM engineering platform that helps teams collaboratively debug, analyze, and iterate on their LLM applications.

LangWatch logo LangWatch

Build AI applications with confidence
  • Langfuse Landing page
    Landing page //
    2023-08-20

Langfuse is an open-source LLM engineering platform designed to empower developers by providing insights into user interactions with their LLM applications. We offer tools that help developers understand usage patterns, diagnose issues, and improve application performance based on real user data. By integrating seamlessly into existing workflows, Langfuse streamlines the process of monitoring, debugging, and optimizing LLM applications. Our platform's robust documentation and active community support make it easy for developers to leverage Langfuse for enhancing their LLM projects efficiently. Whether you're troubleshooting interactions or iterating on new features, Langfuse is committed to simplifying your LLM development journey.

  • LangWatch
    Image date //
    2024-04-05

Companies of all sizes are investing in building new tools or improving their current toolstack with the use of AI. They want to be in control, avoid sensitive data leakages, misuse of the tool or brand reputational damage. Langwatch analyzes your AI solutions, evaluates the quality, prevents AI risks, and helps you improve and ship with confidence.

Langfuse

$ Details
Platforms
-
Release Date
-
Startup details
Country
United States
State
California

LangWatch

$ Details
freemium €99.0 / Monthly
Platforms
Azure Openai
Release Date
2024 January

Langfuse features and specs

  • User-Friendly Interface
    Langfuse offers a clean and intuitive interface that makes it easy for users to navigate and use the platform efficiently, regardless of their technical skill level.
  • Integration Capabilities
    The platform provides a variety of APIs and integration options, allowing users to seamlessly connect Langfuse with other applications and services they use.
  • Comprehensive Analysis Tools
    Langfuse offers advanced analysis tools that help users to gain insights from their language data, improving decision-making and strategy development.

Possible disadvantages of Langfuse

  • Limited Language Support
    While Langfuse offers a range of language options, it may not support as many languages as some global companies require, potentially limiting its usability for diverse linguistic needs.
  • Pricing Model
    The pricing model of Langfuse might be considered expensive for small businesses or startups with a limited budget, which can make it less accessible to those users.
  • Learning Curve for Advanced Features
    While the basic features are easy to use, some advanced functionalities might have a steep learning curve, requiring more time and effort from users to fully leverage them.

LangWatch features and specs

  • Safeguard your AI
    We control your AI with our safety checks through guardrails that prevents jailbreaking, off-topic conversations, sensitive data leakage and brand reputational damage.
  • Analyze and improve
    Our real-time insights help you track user feedback, conversion, output quality, and knowledge base gaps.
  • Ship with confidence
    Test different models and prompts, improve existing and new datasets and ship new versions of your AI tool without breaking it.

Langfuse videos

Langfuse in two minutes

LangWatch videos

Getting Started with Optimization Studio

More videos:

  • Demo - LangWatch LLM Optimization Studio

Category Popularity

0-100% (relative to Langfuse and LangWatch)
AI
66 66%
34% 34
Help Desk
100 100%
0% 0
Developer Tools
0 0%
100% 100
Productivity
85 85%
15% 15

User comments

Share your experience with using Langfuse and LangWatch. For example, how are they different and which one is better?
Log in or Post with

Social recommendations and mentions

Based on our record, Langfuse should be more popular than LangWatch. It has been mentiond 10 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Langfuse mentions (10)

  • Top Open Source Tools for LLM Observability in 2025
    Langfuse is another open-source platform for debugging, analyzing, and iterating on language model applications. It offers tracing, evaluation, and prompt management. While Langfuse offers many capabilities, some (like the Prompt Playground and automated evaluation) are only available in the paid tier for self-hosted users. - Source: dev.to / 7 days ago
  • A Curated List of shadcn/ui-like React Component Collections
    It is reportedly used on websites like Langfuse and Million.dev. - Source: dev.to / about 2 months ago
  • 10 Ways AI Can Speed Up your Mobile App Development
    LangFuse is a monitoring and debugging platform for LLM-powered applications. It provides insights into token usage and costs. It can also analyze latency, and the performance of AI interactions. The platform allows debug prompts, and analyzes how they behave in production. - Source: dev.to / 3 months ago
  • Building effective AI agents with Trigger.dev
    You'll notice there's a lot of prompts in these examples. As you develop your prompts, you'll likely want to iterate and refine them over time. I recommend using tools like Langfuse or Langsmith for prompt management and metrics, making it easier to track performance and make improvements. - Source: dev.to / 3 months ago
  • Ask HN: Who is hiring? (February 2025)
    Langfuse (https://langfuse.com). We started with observability and have branched out into more workflows over time (evals, prompt mgmt, playground, testing...). We have a bunch of traction and are looking for our fourth to sixth hire in scaling and building feature depth. We're hiring in person (4-5 days/week) in Berlin, Germany (salary ranges for each job 70k-130k, up to 0.35% equity). We value quality in... - Source: Hacker News / 3 months ago
View more

LangWatch mentions (1)

  • Scaling from a Billion to a Million to One
    When I started LangWatch, I had a crystal clear development vision for it in mind, I had been through it all, from starting my first business and entangling myself in code so messy I couldn’t move any longer (and therefore losing money and sleep), to working on a consultancy with perfect TDD, pairing and couldn’t-be-more-refactored codebase (sleeping, oh, so well!), to incredibly messy code again this time done by... - Source: dev.to / 4 months ago

What are some alternatives?

When comparing Langfuse and LangWatch, you can also consider the following products

LangSmith - Build and deploy LLM applications with confidence

AssemblyAI - Robust and Accurate Multilingual Speech Recognition

Datumo Eval - Discover Datumo Eval, the cutting-edge LLM evaluation platform from Datumo, designed to optimize AI model accuracy, reliability, and performance through advanced evaluation methodologies.

Athina AI - Athina helps developers to build reliable LLM applications.

Braintrust - Braintrust connects companies with top technical talent to complete strategic projects and drive innovation. Our AI Recruiter can 100x your recruiting power.

LLM Prompt & Model Playground - Test LLM prompts & models side-by-side against many inputs