Arthur

observability

Properties

vendor: Arthur
url: https://www.arthur.ai/
whatItIs: Platform to detect, govern, and improve AI, spanning tracing, evals, and guardrails, with an open-source Agent Development Toolkit for versioning prompts, running structured experiments, and tracing every run.
hosting: both
pricingModel: enterprise SaaS + open-source toolkit
modelProviders: agnostic
stateModel: trace-based
toolModel: SDK + dashboard
includesBrowser: false
includesMemory: false
longRunning: unlimited
hitlSupport: true
observability: tracing + evals + regression detection + guardrails
maturity: ga
launched: 2018
notes: Established enterprise AI observability vendor (founded 2018) surfaced as a baseline gap rather than a new launch; its 2026 Agent Development Toolkit covers the agent lifecycle (tracing, evals, guardrails) in one place. Not previously tracked despite peers (Galileo, Arize, Braintrust) being in the catalogue.

observability

vendor: Arthur
url: https://www.arthur.ai/
whatItIs: Platform to detect, govern, and improve AI, spanning tracing, evals, and guardrails, with an open-source Agent Development Toolkit for versioning prompts, running structured experiments, and tracing every run.
hosting: both
pricingModel: enterprise SaaS + open-source toolkit
modelProviders: agnostic
stateModel: trace-based
toolModel: SDK + dashboard
includesBrowser: false
includesMemory: false
longRunning: unlimited
hitlSupport: true
observability: tracing + evals + regression detection + guardrails
maturity: ga
launched: 2018
notes: Established enterprise AI observability vendor (founded 2018) surfaced as a baseline gap rather than a new launch; its 2026 Agent Development Toolkit covers the agent lifecycle (tracing, evals, guardrails) in one place. Not previously tracked despite peers (Galileo, Arize, Braintrust) being in the catalogue.