Arize AI

Arize AI is an AI observability platform that helps teams monitor, troubleshoot, and evaluate machine learning models and LLM applications in production. Arize provides tools for tracing agent execution, evaluating LLM outputs, detecting data drift, and debugging performance issues.

The platform is particularly relevant to the agentic economy because it provides observability for AI agent workflows — tracing multi-step reasoning chains, monitoring tool calls, and evaluating whether agents are producing correct outputs. Arize's Phoenix open-source library has become a popular tool for LLM application development and evaluation.

Arize sits in the observability and evaluation layer of the agent stack, providing the instrumentation that teams need to deploy AI agents reliably in production environments.