Arthur vs LangWatch

Vendor decision canvas

Evidence sheet
Vendor 1
Arthur logo
ArthurAI Observability

AI observability and evaluation platform for LLM and traditional ML models.

No reviewsRating2018Founded
Vendor 2
LangWatch logo
LangWatchAI Observability

LangWatch helps teams monitor prompts, traces, and quality signals across production LLM applications and agent workflows.

$66.12+ / monthPriceNo reviewsRating2023Founded
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Arthur + LangWatch can move into a shared evaluation.

Evidence sheet

2-vendor view
Vendor evidence comparison for Arthur, LangWatch
Vendor 1
Arthur logo
Arthur
AI Observability

Ship Reliable AI Agents Fast

Vendor 2
LangWatch logo
LangWatch
AI Observability

Observability and evaluations for AI apps.

Overview
CategoryAI ObservabilityAI Observability
What it isAI observability and evaluation platform for LLM and traditional ML models.LangWatch helps teams monitor prompts, traces, and quality signals across production LLM applications and agent workflows.
Pricing
PriceNot available$66.12+ / month
Pricing modelTiered plansTiered plans
Free optionsFree plan, Free trialFree plan, Free trial
Company
Founded20182023
Team size51-200 employees1-10 employees
HeadquartersWashington, DCAmsterdam, Netherlands

Where these sit in AI Observability

  • LangWatch$66.12 / month
  • AI Observability median$79.5 / month

Typical monthly range: $39.25–$186.75 per seat. 32% are priced on request.

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