FaqAll FAQs
FaqAll FAQs

All FAQs

Administration

I cannot see my organization in Langfuse

I want to delete / cancel / close my Langfuse account

How do I enforce 2FA for all users?

I have forgotten my password

Inviting co-workers to Langfuse

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Article

Monitoring AI Research Assistants - Ensuring Accuracy and Reliability

What are the common challenges of building LLM applications?

Chatbot Analytics: Monitor, Evaluate & Improve Your AI Chatbot

LLM Analytics 101 — How to Measure and Improve Your LLM Application

What is LLM Observability & Monitoring?

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Auth

I want to delete / cancel / close my Langfuse account

I have forgotten my password

Inviting co-workers to Langfuse

Where is my Langfuse project?

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Cloud

I cannot see my organization in Langfuse

How do I cut my Langfuse Cloud bill?

How to manage different environments in Langfuse?

How do I upgrade my Langfuse account?

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Comparison

Braintrust Data Alternatives? The best LLMOps platform?

Galileo AI Alternatives? The best LLMOps platform?

Arize AX Alternative? Langfuse vs. Arize AI and Arize Phoenix for LLM Observability

LangSmith Alternative? Langfuse vs. LangSmith for LLM Observability

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Evaluation

How to evaluate sessions/conversations?

How do I work with observations in Langfuse Fast Preview (Langfuse v4)?

How to use Langfuse-hosted Evaluators on Dataset Runs?

How do I upgrade my trace-level evaluators to observation-level evaluators?

How to create and manage Score Configs in Langfuse?

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Integration

I changed my blob storage config — why didn't it re-export, and why do I still see an error?

Why do I see empty files in my blob storage export?

How to customize the names of observations within a Langchain trace?

How to integrate Langfuse with an existing OpenTelemetry setup

How to integrate Langfuse with an existing Sentry setup

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Migration

How to Migrate from Helicone to Langfuse

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Observability

How to use Langfuse Tracing in Serverless Functions (AWS Lambda, Vercel, Cloudflare Workers, etc.)

How do I track LLM cost and tokens in Langfuse?

Why are the input and output of a trace empty?

How to enable or disable Langfuse tracing?

How to evaluate sessions/conversations?

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Observability Get Started

Why are the input and output of a trace empty?

I have setup Langfuse, but I do not see any traces in the dashboard. How to solve this?

Why do I see HTTP requests or database queries in my Langfuse traces?

What does a good trace look like?

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Platform

Why do I see 524 errors on Langfuse API calls?

Are there any limits to the Langfuse API?

I changed my blob storage config — why didn't it re-export, and why do I still see an error?

Why do I see empty files in my blob storage export?

I cannot see my organization in Langfuse

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Product

19 Questions about Langfuse Answered

Which packages and projects are using Langfuse?

How can I self-host Langfuse?

Ten Reasons to Use Langfuse for LLM Observability, Evaluations and Prompt Management

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Prompt Management

Can I dynamically select sub-prompts at runtime?

How to configure retries and timeouts when fetching prompts?

How to measure prompt performance?

Link prompt management with tracing in Langfuse

Can I manage agent skills with Langfuse Prompt Management?

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Prompt Management Get Started

I'm not seeing the latest version of my prompt. Why?

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Self Hosting

Are prebuilt ARM images available?

Are older versions of the SDK compatible with newer versions of Langfuse?

Why is my data retention job running into timeouts?

I cannot connect to my docker deployment, what should I do?

I have forgotten my password

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Tracing

How do I work with observations in Langfuse Fast Preview (Langfuse v4)?

Why do observation lookups with the v3 SDK return 404?

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Other

Overview

Cloud

Product

Prompt Management

Security

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