What is Langfuse?
Langfuse is the open source LLM Engineering Platform. It provides observability, metrics, evals, prompt management and a playground and to debug and improve LLM apps.
Langfuse is open. It works with any model, any framework, allows for complex nesting and has open APIs to build downstream use cases.
Docs: langfuse.com/docs
Github: github.com/langfuse/langfuse
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Langfuse Prompt Experiments - Open Source LLM Engineering Platform
Langfuse is the #1 open source LLM engineering platform. It helps teams iterate on and improve their LLM applications: LLM tracing, metrics, llm-as-a-judge, evaluations, prompt management, datasets testing and more. Create a free account or self-host Langfuse.
Langfuse 2.0 - the open source LLM engineering platform
Langfuse is the open source LLM Engineering Platform.
It provides observability, tracing, evaluations, prompt management, playground and metrics to debug and improve LLM apps.
Langfuse is open. It works with any model, framework and you can export all data.
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5/5 based on 30 reviews
Maker reviews of Langfuse
Extremely relilable LLM Engineering Platform.
Thanks for the generous free tier and excellent LLM observability 🙌
we’re excited to provide a Langfuse integration platform so others can seamlessly view their telemetry in Langfuse! With Langfuse’s robust telemetry and our smooth integration, users gain deep insights into their data, making it easier to track, analyze, and optimize performance.
Reviews
•50 reviews
Awesome!!! First, congratulations on the launch. Making LLM apps cost-effective is one of the priorities for the service that I am working on. This should help. Just a quick question, can this be used in tandem with Langsmith?
•4 reviews
We use Langfuse to monitor our GPT usage - specifically to watch for token usage, monitor hallucinations, and trace through request history when things go wrong. Great product and even greater team! Highly recommend trying Langfuse!
•4 reviews
So excited to see Langfuse go live — we've been a happy user for 4 weeks now. Most detailed latency and analytics in the market. Highly recommend for anyone using complex chains or with user-facing chat applications, where latency becomes crucial. Congrats, Clemens, Marc, and Max!
•1 review
This is awesome, congrats on the launch guys! LLMs always felt like such a black box for me, Langfuse seems to address these concerns. This is a huge win for the LLM space in general, I'm super excited to build on it!
•37 reviews
This looks absolutely brilliant idea to track and stay informed about the performance of LLM applications. I am in the process of building one and certainly give it a try to measure my LLM app.