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Open-source (MIT) LLM engineering platform - tracing/observability, evals, prompt management, self-hostable in minutes. ACQUIRED BY CLICKHOUSE Jan 2026 (stays MIT).
Datasets
1open-source (MIT) LLM observability platform: SDK/API trace + span ingestion for LLM apps and agents, prompt management, LLM-as-judge evals and dataset experiments, metered in 'units' (50k free/mo, 100k included on paid tiers), run as managed cloud (US/EU/Japan/HIPAA-US data regions) or self-hosted via Docker Compose/Kubernetes
Scale 50,000+ companies using LangfuseCoverage Information TechnologyTickers DDOG · ESTC · MDB
Sample, licence terms, pricing and eval results when Langfuse publishes them. Until then, discover alternatives today with a 7-day trial.
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What buyers ask about Langfuse, answered from this page.
What does Langfuse do?
Open-source (MIT) LLM engineering platform - tracing/observability, evals, prompt management, self-hostable in minutes. ACQUIRED BY CLICKHOUSE Jan 2026 (stays MIT).
What data does Langfuse offer?
Langfuse offers (LLM engineering and observability platform (open source, self-hostable)) — 50,000+ companies using Langfuse.
How is Langfuse's data delivered?
The data is delivered by api.
What does Langfuse cover?
Coverage spans US.
How do I get a sample from Langfuse?
The supplier's own access route is an api signup. Request a sample through Brickroad to start.
How is Langfuse's data licensed and priced?
freemium — Hobby free (no credit card, 50k units/mo); Core $29/mo, Pro $199/mo, Enterprise $2,499/mo, each with 100k units/mo included; graduated overage $8 down to $6 per 100k units; self-hosting the open-source build is free.. Terms and price bands are in the Buyer room.
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