#4 in Model Hosting & InferenceUpdated 2026-08

Langfuse

by Langfuse · Open-source tracing, evaluation and prompt management for LLM apps

70.2 — BenchRank score out of 100

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Overview

Langfuse is an open-source platform for tracing and evaluating LLM applications and agents. It records hierarchical traces of LLM calls, tool invocations and retrieval steps, and adds prompt management, datasets, experiments, LLM-as-a-judge scoring and human annotation, with cost and latency dashboards. It runs as a hosted cloud service or self-hosted via Docker, Kubernetes or Terraform.

Best for: Engineering teams tracing, evaluating and improving LLM apps who want open source and self-hosting.
Pricing: Free Hobby plan, then $29/month (Core), $199/month (Pro) and $2,499/month (Enterprise), each including 100k units with additional usage at $8 per 100k units; self-hosting is free under the MIT licence.
Runs on: Self-hosted

Strengths and trade-offs

Strengths

MIT licensed; self-host via Docker, Kubernetes or Terraform
OTel-native, with SDKs and 100+ framework integrations
Tracing, prompts, evals and dashboards in one platform
Free tier: 50k units/month, no credit card required

Trade-offs

Data access capped: 30 days on Hobby, 90 on Core, 3 years on Pro
Included usage stays 100k units on all paid plans; extra is $8/100k
SSO and fine-grained RBAC need the $300/mo Teams add-on or Enterprise
Hobby is 2 users with GitHub-only support and no response-time SLO

Pricing

Published plans from Langfuse’s own pricing page, in USD. Usage charges and add-ons may apply on top.

Langfuse pricing tiers, monthly rates in USD
Plan	Monthly	Includes
Hobby	Freeper month	All platform features with limits 50k units/month included, 30 days data access 2 users, community support via GitHub
Core	$29per month	100k units/month included, then $8/100k units 90 days data access, unlimited users In-app support, 48h response SLO
Pro	$199per month	3 years data access and retention management High rate limits, unlimited annotation queues SOC 2 and ISO 27001 reports, HIPAA-ready region Optional Teams add-on at $300/month for SSO and RBAC
Enterprise	Contact sales	Everything in Pro plus the Teams add-on Audit logs, SCIM API, custom rate limits Uptime and support SLAs, dedicated support engineer Yearly commitment, invoice or AWS Marketplace billing

How this score is made up

Each dimension is scored out of 100 and combined into the headline score using fixed weights.

MCP support: 100 out of 100
API quality: 0 out of 100
Documentation: 100 out of 100
Agent friendliness: 73 out of 100
Pricing transparency: 85 out of 100
Changelog: 100 out of 100
Marketing site structure: 55 out of 100
Operational trust: 60 out of 100

Measured, but not part of the score

Useful to know, but not a mark for or against the product — so these do not affect the ranking.

Openness: 55 out of 100
Maintenance: 100 out of 100

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