The Evaluator

Your go-to blog for insights on AI observability and evaluation.

Showing 1–10 of 462 posts (page 1 of 47)

Arize and Dynatrace: Making the World’s AI Work
Company

Arize and Dynatrace: Making the World’s AI Work

Today we are announcing the signing of a definitive agreement for the acquisition of Arize by Dynatrace to accelerate our mission to make the world’s AI work.

AI agent guardrails vs. evals: How to build more reliable agent systems
Agents Evaluations

AI agent guardrails vs. evals: How to build more reliable agent systems

Guardrails constrain what an agent can do in code; evals judge whether it performed well. Learn how both layers—and the harness around them—make long-running AI agents reliable.

Evaluation-driven development: How to move AI agents from pilot to production
Agent Engineering Agent Observability AI Evaluation

Evaluation-driven development: How to move AI agents from pilot to production

Learn how evaluation-driven development, agent harnesses, AI observability, guardrails, and cost-per-outcome metrics move AI agents from pilot to production.

Sign up for our newsletter, The Evaluator — and stay in the know with updates and new resources:

Crew Studio launches with native Arize AX tracing and evaluation
Agent Observability Product Releases

Crew Studio launches with native Arize AX tracing and evaluation

Through a native Arize AX integration, teams can send traces from Crew Studio to Arize from the first run without custom instrumentation—then inspect behavior, evaluate quality, and test fixes before redeploying.

You chose the best model. Why is your agent still failing?
AI Engineering Evaluations Observability & tracing

You chose the best model. Why is your agent still failing?

Public benchmarks can show how a model performs in general. Production reliability depends on the context and harness around it, which only your team can evaluate against its own data, workflows, and users.

Arize AX adds native support for OpenTelemetry GenAI semantic conventions
Agent Observability Product Releases

Arize AX adds native support for OpenTelemetry GenAI semantic conventions

Arize AX now normalizes OpenTelemetry GenAI semantic conventions into first-class AI traces, unlocking evaluations, token and cost visibility, and easier debugging.

Demystifying the EU AI Act for AI product and engineering teams
AI Engineering Security & Governance

Demystifying the EU AI Act for AI product and engineering teams

An engineering guide to turning EU AI Act principles into traces, evaluations, annotations, and release evidence product and engineering teams can actually demonstrate.

How cheap models changed multi-agent economics
Agent Engineering Agent Evaluation Agents

How cheap models changed multi-agent economics

Orchestrator-executor just became the smart default for production agents: an expensive model plans, cheap models execute, and cost per completed task decides the roster.

AI agent observability: Why production systems need a reasoning layer
Agent Engineering Agent Observability AI Engineering

AI agent observability: Why production systems need a reasoning layer

Traditional APM can collect every span and still leave developers guessing about intent, causality, and drift. As agents multiply, the observability stack must learn to interpret the systems it watches.

How to debug production AI agents with Signal in Arize AX
AI Engineering Product tutorials

How to debug production AI agents with Signal in Arize AX

Learn how Arize Signal turns production traces into ranked issues, proposed fixes, regression datasets, and reviewable pull requests for AI agents.