Yes, Langfuse has a permanent free tier alongside its paid plans. The free plan includes 50k units per month included, 30 days of data access, and up to 2 users. FreeTier.co estimates the free tier at about $29/mo, and no credit card is required to sign up.
About
Langfuse is an open-source AI engineering platform for tracing, monitoring, prompt management, evaluations, experiments, and analytics around LLM applications and agents. It supports SDK-based tracing, OpenTelemetry instrumentation, API access, and integrations with frameworks and model providers such as LangChain, OpenAI, Anthropic, Google Gemini, and others.
The hosted cloud plan includes a free Hobby tier with 50k billable units per month, 30 days of data access, 2 users, 1 human annotation queue, 2 alerts, and rate limits such as 30 requests per minute on the general API. Self-hosting is also available, but the cloud free tier is the relevant free offering on the pricing page.
- 50k billable units monthly
- 30 days historical data
- 2 users included
- 1 annotation queue
- 2 alerts included
- 30 requests per minute API limit
- OpenTelemetry and SDK tracing
Free Tier Value
This free tier is genuinely usable: it includes the full platform, 50k units per month, 30 days of data access, and up to 2 users, with community support. The cheapest paid plan is Core at $29/month, and the free tier keeps most of the core workflow but with tighter limits on usage, retention, and seats, so its practical value is about the same as the Core plan’s monthly price. No credit card is required, and the offer is perpetual but capped rather than unlimited.
What's included in the free tier
Verified
- Access to all platform features with limits.
- 50k units per month included.
- 30 days of data access.
- Up to 2 users.
- Community support via GitHub.
See Langfuse pricing for current limits.
Paid plans
Core
- units included
- 100k
- data access
- 90 days
- users
- unlimited
- requests / min
- 4,000
- Everything in Hobby
- 100k units / month included
- 90 days data access
- Unlimited users
- In-app support
Pro
- units included
- 100k
- data access
- 3 years
- users
- unlimited
- requests / min
- 20,000
- Everything in Core
- 100k units / month included
- 3 years data access
- Data retention management
- High rate limits
- SOC2 & ISO27001 reports, HIPAA-ready region
- Prioritized in-app support
Enterprise
- units included
- 100k
- data access
- 3 years
- users
- unlimited
- requests / min
- custom
- Everything in Pro + Teams
- 100k units / month included
- Audit Logs
- SCIM API
- Custom rate limits
- Uptime SLA
- Support SLA
- Named lead support engineer
Pricing extracted from Langfuse's pricing page. Always verify current pricing before committing.
Common questions
Is Langfuse free forever?
Yes. Langfuse has a permanent free tier alongside its paid plans, though the allowance typically resets each month.
Does Langfuse require a credit card?
No. You can start on Langfuse's free tier without entering card details.
What happens when you exceed Langfuse's free tier?
You move to a paid plan. Langfuse's cheapest paid plan is Core at $29 / month.
What is Langfuse's free tier worth?
Langfuse's free tier is worth about $29 per month. That maps to an FTV score of 67/100. The FTV score is explained at freetier.co/ftv.
