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Elizabeth Hutton

Elizabeth Hutton,

Elizabeth Hutton is a Senior AI Engineer at Arize AI. Previously, she was a Senior Machine Learning Engineer at Cisco.

Recent posts by Elizabeth Hutton

Abstract hero image on a black background featuring flowing white and blue light trails converging in the center around a glowing white circle with a stylized blue bird logo. Small star-like particles are scattered throughout the curved lines, creating a sense of motion and energy. The Arize logo appears in white in the lower-left corner.

From observability to context: What’s next for Arize Phoenix

As agents start changing software, they need a way to verify their work that includes traces, evals, feedback, and APIs. This is where Phoenix goes next — not the next release, but what this product becomes.

9 minutes read
Observability & tracing

How to Evaluate Tool-Calling Agents

When you give an LLM access to tools, you introduce a new surface area for failure — and it breaks in two distinct ways: The model selects the wrong tool…

8 minutes read
Agents Phoenix

Evidence-Based Prompting Strategies for LLM-as-a-Judge: Explanations and Chain-of-Thought

When LLMs are used as evaluators, two design choices often determine the quality and usefulness of their judgments: whether to require explanations for decisions, and whether to use explicit chain-of-thought…

7 minutes read
LLM Evals