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Winner • AI Infra Product of the Year

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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Maker shoutouts

Lamatic.ai — Build AI agents in low-code & deploy on edge

484 upvotes

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22d ago

"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."

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Touring — The ultimate app for travellers, works literally everywhere

324 upvotes

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6mo ago

"The ability to easily monitor, configure and debug what happens in our LLM pipelines has proved to be extremely useful during developing and QA. It's a great tool for everyone working with LLMs!"

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Truva AI — Sell more and grind less with AI agents

465 upvotes

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1mo ago

"Helping us stay on top off our AI agents."

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•View Launch

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Recent launches

Langfuse Prompt Experiments

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.

11d ago

Langfuse 2.0

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.

7mo ago

1 more launch