Langfuse

AI-powered ai evaluation tool

Traces, evals, prompt management and metrics to debug and improve your LLM application. Integrates with Langchain, OpenAI, LlamaIndex, LiteLLM, and more.

Best for: Teams and professionals looking to leverage AI for better results

Last verified: 2026-02-17

Visit LangfuseSee alternatives Pricing

⚡ API🌐 Web

FreemiumAI Agent

Overview

Capture complete traces of your LLM applications/agents. Use traces to inspect failures and build eval datasets. Based on OpenTelemetry with support for all popular LLM/agent libraries.

Key features

Langfuse offers cloud-based with real-time sync
AI-powered automation and intelligence in Langfuse
Intuitive user interface
API access for custom integrations
Multi-format output support
Langfuse provides a developer API for custom integrations
Free tier available to get started with Langfuse

Langfuse pricing

Freemium

Langfuse offers freemium pricing. Visit the official website for the most up-to-date pricing details.

View pricingPricing verified Feb 2026

What you can do with Langfuse

✓Use Langfuse to automate routine tasks
✓Improve workflow efficiency
✓Use Langfuse to generate content and insights
✓Integrate Langfuse via API into existing workflows
✓Get started free and upgrade as your needs grow

Pros and cons

Pros

Langfuse easy to get started with
Saves time on routine tasks
Langfuse offers a free plan to get started

Cons

AI outputs may need human review
May require a paid plan for full features

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Frequently asked questions

What is Langfuse?

Langfuse is capture complete traces of your LLM applications/agents. It falls under the AI Agent category of AI tools.

Is Langfuse free to use?

Yes, Langfuse offers a free plan with limited features. Paid plans unlock additional capabilities and higher usage limits.

How much does Langfuse cost?

Langfuse offers the following plans: Free: $0. Prices may change, so visit the official website for the most current pricing.

What are the best Langfuse alternatives?

There are several alternatives to Langfuse in the AI Agent space. Check our Langfuse alternatives page for a detailed comparison of similar tools with features, pricing, and user reviews.

What platforms does Langfuse support?

Langfuse is available on API, Web. This makes it accessible across different devices and workflows.