No. 12 of 32 ·AI Agent Observability Tools

Langfuse

Web · Self-hosted · API · paid plans from $29/mo

Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Langfuse is ranked #12 of 32 in AI agent observability tools on Freedom251. It runs on API, Self-hosted, Web. There is a free plan. Paid plans start at $29/mo.

Langfuse plans and pricing

All plans

Hobby Free 50k units / month included · 30 days data access · 2 users · Community support via GitHub langfuse.com · 30 Sept 2026

Core $29/mo monthly 100k units / month included · additional $8/100k units · 90 days data access · Unlimited users · In-app support langfuse.com · 30 Sept 2026

Pro $199/mo monthly 100k units / month included · additional $8/100k units · 3 years data access · Unlimited annotation queues · High rate limits · Prioritized in-app support langfuse.com · 30 Sept 2026

Teams Add-on $300/mo monthly Enterprise SSO · SSO enforcement · Fine-grained RBAC · Dedicated Slack / MS Teams Channel support langfuse.com · 30 Sept 2026

Enterprise $2,499/mo monthly 100k units / month included · additional $8/100k units · Audit Logs · SCIM API · Custom rate limits · Uptime SLA · Support SLA · Named lead support engineer langfuse.com · 30 Sept 2026

Compared on AI agent observability tools

Free plan: Yes
Paid from: $29/mo
Cost tracking: Yes

Best Langfuse alternatives

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The record

Product: Langfuse is an open-source AI engineering platform that helps teams collaboratively debug, analyze, and iterate on AI agent applications.
Observability: Langfuse tracing records prompts, model responses, token usage, latency, tool calls, retrieval steps, and metadata.
Prompt management: Prompt Management stores, versions, deploys, tests, and links prompts to traces.
Evaluation: Evaluation features include LLM-as-a-judge, code evaluators, user feedback, manual labeling, datasets, and experiments.
Integrations: Langfuse supports Python and JS/TS SDKs, OpenTelemetry, API, CLI, MCP Server, and integrations with popular AI frameworks.
Self-hosting: Langfuse can be self-hosted with Docker on customer infrastructure, including Docker Compose, Kubernetes, AWS, and Azure deployment options.
Open source license: The core of Langfuse is MIT-licensed and available for self-hosting.
Security compliance: Langfuse reports annual SOC 2 Type 2 and ISO 27001 audits, external penetration tests, GDPR compliance, a DPA, and a HIPAA-ready region.
Encryption: Langfuse Cloud protects traffic with TLS 1.2+ and stored data with AES-256 encryption.
Access control: Langfuse supports role-based access control and enterprise single sign-on through OIDC.
Support: Hobby includes community support via GitHub, Core includes in-app support, Pro includes prioritized in-app support, and Enterprise includes support SLA and a named lead support engineer.
Company status: Langfuse joined ClickHouse in January 2026.
Headquarters: Berlin, Germany; San Francisco, United States
Price from: $29/mo

Where it ranks on Freedom251

Best AI Agent Observability Tools in 2026#12 of 32
Best AI LLM Evaluation Tools in 2026#12 of 30
Best LLM Observability Tools in 2026#13 of 26
Best Prompt Management Software in 2026#4 of 26
Best AI Prompt Management Software in 2026#6 of 25
Best Model Monitoring Software in 2026#13 of 24
Best AI LLM Observability Tools in 2026#10 of 23
Best API Analytics Software in 2026#7 of 16

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Sources

langfuse.com/docs· checked 30 Sept 2026
langfuse.com/docs/observability/overview· checked 30 Sept 2026
langfuse.com/docs/prompt-management/overview· checked 30 Sept 2026
langfuse.com/integrations· checked 30 Sept 2026
langfuse.com/self-hosting· checked 30 Sept 2026
langfuse.com/faq/all/self-hosting-langfuse· checked 30 Sept 2026
langfuse.com/security· checked 30 Sept 2026
langfuse.com/security/security-faq· checked 30 Sept 2026
langfuse.com/security/auth· checked 30 Sept 2026
langfuse.com/pricing· checked 30 Sept 2026
langfuse.com/about· checked 30 Sept 2026
langfuse.com· checked 23 Sept 2026