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Langfuse

by Langfuse

Open-source LLM observability.

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Reviewed by the Softwares.com Editorial Team · Last updated June 2026 · How we rate

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Key facts

Vendor
Langfuse
Pricing
Freemium — Free – $59/mo
Free tier
Yes
Platforms
Web, Self Hosted, Api
Best for
Ai Developers
Editor rating
4.6 / 5
Founded
2023
Headquarters
Berlin, Germany

What is Langfuse?

Langfuse is a ai machine learning tool from Langfuse. Langfuse is an open-source platform for tracing, evals, and analytics of LLM applications.

Langfuse uses freemium pricing and offers a free tier you can start on without a credit card. Free – $59/mo.

It's best suited to ai-developers and runs on Web, Self Hosted, Api.

Standout strengths include open source, self-hostable, framework-agnostic. Worth weighing: setup for self-host.

Langfuse pricing

Hobby (free)
Free
Get Hobby (free)
Pro
$59/mo
Get Pro

Pros

  • Open source
  • Self-hostable
  • Framework-agnostic

Cons

  • Setup for self-host

Langfuse vs alternatives

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Frequently asked questions

What is Langfuse?

Langfuse is an open-source platform for tracing, evals, and analytics of LLM applications.

How much does Langfuse cost?

Langfuse is freemium-priced. It has a free tier. Paid plans start at $59/mo.

Does Langfuse have a free trial?

Langfuse offers a free tier rather than a time-limited trial.

What platforms does Langfuse support?

Langfuse is available on Web, Self Hosted, Api.