Cubbie Conference December 10, 2026 in San Francisco Get tickets →

Arthur vs LangSmith

Arthur logo
ArthurAI Observability
LangSmith logo
LangSmithAI Observability
From $39 / seat / moPublished price
Arthur logo
Arthur
AI Observability

Ship Reliable AI Agents Fast

LangSmith logo
LangSmith
AI Observability

Debug, test, and monitor LLM apps.

Overview
CategoryAI ObservabilityAI Observability
What it isAI observability and evaluation platform for LLM and traditional ML models.LangSmith is LangChain's platform for debugging, testing, evaluating, and monitoring LLM applications and agent workflows.
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 $39 / seat / mo
Per LangChain's pricing page: Developer is a free tier (1 seat, up to 5k base traces/mo, then pay-as-you-go). Plus is $39/seat/month including up to 10k base traces/mo, then usage…
Pricing modelTiered plansTiered plans
Free optionsFree plan · Free trialFree plan · Free trial
Deal on CubbieNone right nowNone right now
Company
Founded20182023
Team size51-200 employees201-500 employees
HeadquartersWashington, DCSan Francisco, CA

Where these sit in AI Observability

  • LangSmith$468
  • 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.

See the whole AI Observability market

Hot in AI

Rising

CRM

Field Service Management

Project Management

Email Marketing

Cloud Hosting

Email Deliverability