---
title: "Langfuse Pricing, Features & Alternatives (2026)"
description: "Langfuse review: LLM Observability & Evals tool — Free tier, plans, pros & cons, and the best Langfuse alternatives compared for startups in 2026."
source: https://appstackbuilder.com/tools/langfuse
retrieved: 2026-10-07
---

![Langfuse logo](https://www.google.com/s2/favicons?domain=langfuse.com&sz=128)

[LLM Observability & Evals](https://appstackbuilder.com/categories/llm-observability)Free tier

# Langfuse: Pricing, Features & Alternatives

Langfuse is the most widely deployed open-source platform in this category: traces, cost and latency per call, datasets, LLM-as-judge evals and a versioned prompt registry. ClickHouse acquired it in January 2026, and the MIT licence and self-hosting path were kept. The cloud prices by units (traces, observations and scores) rather than seats. Core is $29/month for 100k units and 90 days of data, and each extra 100k units is $8\. Pro at $199 buys three years of retention rather than more volume.

Category

LLM Observability & Evals

Pricing

Free tier available

Free tier

Yes

Best for

LLM Observability & Evals — llm, observability

[Visit Langfuse official site](https://langfuse.com/)

## Langfuse Pricing Plans (2026)

| Plan        | Price                 | Highlights                                                                     |
| ----------- | --------------------- | ------------------------------------------------------------------------------ |
| Hobby       | $0                    | 50k units / month · 2 users · 30 days of data access                           |
| CorePopular | $29 / month           | 100k units / month included · $8 per extra 100k units · Unlimited users        |
| Pro         | $199 / month          | 100k units / month included · $8 per extra 100k units · 3 years of data access |
| Self-hosted | $0 (self-hosted, MIT) | Docker Compose and Kubernetes templates · Same core product as the cloud       |

Pricing summary: Free · paid from $29/mo. Always confirm current pricing on the official site.

## Key Langfuse Features

* ✓100k units / month included
* ✓$8 per extra 100k units
* ✓Unlimited users
* ✓90 days of data access

### ✓ Pros

* +Genuinely open source and self-hostable
* +Unit pricing does not punish adding teammates
* +Framework-agnostic: OpenTelemetry, LangChain, LlamaIndex, raw SDKs
* +Prompt management and evals in the same tool as tracing

### ✗ Cons

* −Self-hosting at scale means running ClickHouse, Postgres and Redis
* −Units add up quickly for agent traces with many spans
* −Longer retention is gated behind the $199 plan

## Best Langfuse Alternatives

[Compare all ](https://appstackbuilder.com/tool-alternatives/langfuse)

[![Braintrust logo](https://www.google.com/s2/favicons?domain=braintrust.dev&sz=128)BraintrustFree · paid from $249/mo](https://appstackbuilder.com/tools/braintrust)[![LangSmith logo](https://www.google.com/s2/favicons?domain=langchain.com&sz=128)LangSmithFree · paid from $39/seat/mo](https://appstackbuilder.com/tools/langsmith)[![OpenTelemetry logo](https://www.google.com/s2/favicons?domain=opentelemetry.io&sz=128)OpenTelemetryFree](https://appstackbuilder.com/tools/opentelemetry)

## Langfuse Compared

[Langfuse vs Braintrust](https://appstackbuilder.com/compare/braintrust-vs-langfuse)[Langfuse vs OpenTelemetry](https://appstackbuilder.com/compare/langfuse-vs-opentelemetry)[Langfuse vs LangSmith](https://appstackbuilder.com/compare/langfuse-vs-langsmith)

## Langfuse FAQ

What is Langfuse used for?⌄

Langfuse is a llm observability & evals tool. Open-source LLM tracing, evals and prompt management: MIT-licensed, self-hostable, and $29/month in the cloud with unlimited users.

Is Langfuse free?⌄

Yes — Langfuse has a free tier you can start with, and paid plans for more usage and features.

How much does Langfuse cost?⌄

Langfuse offers a free tier, with paid plans starting at $29/month.

What are the best Langfuse alternatives?⌄

Popular Langfuse alternatives include Braintrust, LangSmith, OpenTelemetry. Compare pricing and features on our Langfuse alternatives page.

## Not sure if Langfuse fits your stack?

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