Langfuse
Trace, evaluate, and improve AI agents with one open platform.
Trace, evaluate, and improve AI agents with one open platform.
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Langfuse is a practical fit for buyers evaluating focused AI tooling.
- Who is it for?
- AI engineering teams who need to debug agent runs step by step, because hierarchical traces capture every LLM call, tool invocation and retrieval step.
Product information
What this product does
Trace, evaluate, and improve AI agents with one open platform. Use production data to understand behavior, collaborate on fixes, and ship better quality at lower cost and latency.
Sourced from langfuse.com
Company & Maker
Who built Langfuse?
- Company
- ClickHouse
- Product
- Open Source LLM Engineering Platform
The maker hasn't published a public statement we can verify yet.
Researched with AI · Data refreshed last week · How we score
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Langfuse is an open-source LLM engineering platform for tracing, prompt management, evaluations and metrics. Engineering teams building LLM apps and agents use it through Python and TypeScript SDKs or OpenTelemetry, on its cloud or self-hosted.
Who should use
Buyer-fit is derived from approved personas and use-case evidence. Search-volume noise stays labeled separately.
Best-fit workflows
- Traces a multi-step agent run to find the retrieval step that returned the wrong document
- Rolls back a production prompt version with one click after answer quality drops
- Scores chatbot answers on a test dataset with an LLM-as-a-judge evaluator
- Alerts on cost and latency spikes from a metrics dashboard
- Builds a golden dataset from human-annotated production traces
- AI engineering teams who need to debug agent runs step by step, because hierarchical traces capture every LLM call, tool invocation and retrieval step.
Pricing reality
Vendor stated
Free Hobby plan with 50k observations per month and no credit card, graduated usage-based paid cloud plans, and Enterprise plans for cloud and self-hosting.
Actual cost
Self-hosting is MIT licensed with every feature included, so its cost is your own infrastructure. Cloud cost grows with billable traces, observations and scores.
Hidden costs
3 hidden cost warnings — unlock to view
Pricing reality
Last updated Nov 2026
Starting price
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Mindber only shows named plan cards when they come from linked pricing evidence. If the tier data is incomplete, this page falls back to the listed starting price instead of fabricating plan names or $0 tiers.
General buyer tips
Common across software subscriptions, not findings about this product.
True cost for your case
LIVE ESTIMATEEstimated spend
--Starting price has not been verified from a linked pricing source yet.
Prices change often — confirm on the vendor's site before you buy.
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Engagement signals (30d)
Based on 6 linked public signals.
Mindber Activity Score™
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HOW THIS TOOL SCORES
Scores compare this tool with similar tools similar tools in its category. Use it to judge Innovation and Capability before you shortlist.
Innovation Index™
Is it new, different, and easy to understand?
Medium confidence (50%) - some sub-scores have thin evidence.What this means →
Functionality Score™
Does it cover the jobs buyers expect, and can it keep up?
Low confidence (30%) - some sub-scores have thin evidence.What this means →
Traffic & search proof
Public view keeps the ratio story. Paid view unlocks exact monthly visits, full region coverage, and CPC-level keyword intelligence.
Google Trends live interest
Live Google Trends data for Langfuse: interest over time, regions, topics, and related queries.
Tracks 12-month Google search interest on a 0-100 relative interest scale.
Includes regional demand, so readers can see where search interest is strongest.
Includes related topics and related queries to surface adjacent demand and search intent.
FAQ
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Sources and methodology
Only evidence with a linked source record or explicit feature provenance is shown here. Data without provenance stays off the page.
COMMUNITY CREDITS
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