Langfuse
Langfuse

Langfuse

DR79Ahrefs DR: 79/100. Top 25%. Measured by Ahrefs. Median 44.Agent43Agent Readiness: 43/100. Above median. Measured by StartupHub.ai. Median 41.Speed45Site Speed: 45/100. Bottom 25%. Measured by Google PageSpeed. Median 62.

Open-source LLM engineering platform for debugging, monitoring, and improving production-grade LLM applications.

Website
2022Active21Berlin, Germany

About

Langfuse is an open-source LLM engineering platform designed to help teams build and improve production-grade LLM applications faster. It addresses key challenges such as debugging complex workflows, monitoring costs and latencies, and assessing output quality, providing comprehensive tools for the entire LLM application lifecycle.

Key facts

At-a-glance profile data

Website
langfuse.com
Headquarters
Berlin, Germany
Founded
2022
Employees
21
Total funding
$3M (Seed)
Business model
B2B

Langfuse pricing

Plans and prices published by Langfuse
PlanPriceIncludes
Hobby$0 / month50k units per month included, 30 days data access, 2 users
Core$29 / month100k units per month included, additional $8 per 100k units, 90 days data access, Unlimited users
Pro$199 / month100k units per month included, additional $8 per 100k units, 3 years data access with data retention management, Unlimited annotation queues and high rate limits
Enterprise$2499 / month100k units per month included, additional $8 per 100k units, Everything in Pro plus Teams add-on, Audit Logs and SCIM API

Additional usage is $8 per 100k units with lower pricing at volume via pricing calculator. Discounts available for startups, EDU and OSS. Self-hosted deployment available via Docker Compose, Kubernetes and Terraform.

Plans as published by Langfuse, checked September 2026. Current prices on langfuse.com

Funding rounds

Funding rounds raised by Langfuse
DateRoundAmountLead investors
1 May 2023Seed$3MCherry Ventures

Tech stack

Detected on langfuse.com, last scanned 2 Sept 2026. Run your own scan

Compliance
SOC 2, HIPAA, ISO 27001, GDPR
Frontend
Next.js, Tailwind CSS
Analytics
Google Tag Manager, Segment
Observability
incident.io
Support
HubSpot, Crisp
CDN
Vercel
Email provider
Google Workspace
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Frequently asked

How much funding has Langfuse raised?

Langfuse has raised a total of $3M in funding. The most recent round on record is Seed.

How many employees does Langfuse have?

Langfuse has approximately 21 people on record.