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Arthur vs Langfuse

Arthur logo
ArthurAI Observability
Langfuse logo
LangfuseAI Observability
From $29 / moPublished price
Arthur logo
Arthur
AI Observability

Ship Reliable AI Agents Fast

Langfuse logo
Langfuse
AI Observability

Open-source LLM engineering platform.

Overview
CategoryAI ObservabilityAI Observability
What it isAI observability and evaluation platform for LLM and traditional ML models.Langfuse is an open-source platform for tracing, prompt management, evaluations, and observability across LLM applications and agent systems.
Pricing
Published priceNo current public numeric pricing was verified for Arthur. Pricing is provided through sales or depends on usage, scope, or deployment requirements.From $29 / mo
Open-source with a managed cloud. Free Hobby tier includes 50k units/mo, 30-day data access, 2 users. Paid Core starts at $29/mo (100k units, then $8/100k units, unlimited users,…
Pricing modelTiered plansTiered plans
Free optionsFree plan · Free trialFree plan · Free trial
Deal on CubbieNone right nowNone right now
Company
Founded20182022
Team size51-200 employeesNot available
HeadquartersWashington, DCBerlin, Germany

Where these sit in AI Observability

  • Langfuse$348
  • AI Observability median$1,188

Per seat, per year, across 8 products publishing a price. Half of AI Observability sits between $480 and $2,388, and 32% of its plans are priced on request. Arthur states a range rather than a single yearly figure, so it is not marked here.

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