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Langfuse

Open-source LLM observability and evaluation platform for production AI apps.

4.5(external rating)
#42 in Coding#53 in Business & Analytics
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Freemium🪟 Web🪟 API🪟 Desktop
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About Langfuse

Langfuse is an open-source LLM engineering platform for tracing, monitoring, and evaluating AI applications. It provides detailed observability into LLM calls, costs, and latency, helping teams debug and optimize their AI products.

Key Features

llm tracing
cost tracking
prompt management
evaluation
a/b testing

💰 Pricing

Freemium

Free self-hosted or Hobby cloud plan; Team plan from $59/month

Frequently Asked Questions

Is Langfuse free?
Langfuse offers a free plan with limited features. Paid plans unlock additional capabilities. Free self-hosted or Hobby cloud plan; Team plan from $59/month
What is Langfuse used for?
Langfuse is primarily used for Coding, Business & Analytics. Open-source LLM observability and evaluation platform for production AI apps.
What platforms does Langfuse work on?
Langfuse is available on Web, API, Desktop.
What are the best alternatives to Langfuse?
Top alternatives to Langfuse include ChatGPT, Claude, GitHub Copilot. These tools offer similar functionality and may suit different budgets or workflows.

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📊 Comparison vs Alternatives

Feature
Langfuse logoLangfuse
PricingFreemiumFreemiumFreemiumFreemium
Rating⭐ 4.5⭐ 4.8⭐ 4.8⭐ 4.6
Free Tier
Popularity
72%
100%
94%
92%

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Quick Stats

Rating
4.5
ReviewsExternal data
Coding#42
Business & Analytics#53
PricingFreemium
Popularity
72%

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Last updated: 2026-03-28·Claim this listing
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