Langfuse: pricing and features
by Langfuse (ClickHouse, Inc.)
Prices and features checked 2026-10-17 on the vendor's own pages. Anything we could not confirm says “not verified”.
What is Langfuse? Open-source LLM engineering platform: tracing, prompt management, datasets, experiments, LLM-as-judge and human annotation. Langfuse Cloud bills by units; self-hosting the open-source version is free.
Best for: Teams that want open-source, self-hostable tracing, prompt management and evals with usage-based cloud pricing.
Pricing
- Free tier
- Hobby: 50k units/month, 30 days data access, 2 users [source, checked 2026-10-17]
- Entry paid price
- Core $29/month: 100k units included, then $8 per 100k units (graduated down to $6 per 100k above 50M) [source, checked 2026-10-17]
- What you pay for (meter)
- Billable units: traces, observations (spans, events, generations) and scores [source]
- Licence
- MIT for code outside the ee/ directories; ee/ code under a separate licence [source]
- Self-hosting
- Free to self-host (Docker Compose or Kubernetes) [source]
- Data retention
- Data access: 30 days (Hobby), 90 days (Core), 3 years (Pro and Enterprise) [source]
Features
| OpenTelemetry | OpenTelemetry ingestion on all plans [source] |
|---|---|
| CI gating | Run experiments in CI and gate changes [source] |
| LLM-as-judge | LLM-as-judge evaluators on all plans [source] |
| Human annotation | Annotation queues: 1 on Hobby, 3 on Core, unlimited on Pro [source] |
| Prompt management | Prompt versioning and release labels [source] |
| Dataset versioning | Dataset versions are accessible via the SDK/API [source] |
| SOC 2 / HIPAA | SOC 2 Type II and ISO 27001 reports and HIPAA (BAA) on Pro ($199/month) and Enterprise [source] |
More on Langfuse
Our directory entry covers what Langfuse tests, its licence and how to run it: Langfuse on Evals Review.
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