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Meet PXI: the AI engineering agent inside Phoenix

An AI engineering agent built into Phoenix. It works like a coding agent, just point it at your telemetry instead of a source tree.

16 minutes read
By Mikyo King | 16 minutes read
Agents LLM Evals Phoenix Product Releases
Arize skills for your coding agents

Arize Skills: Coding Agent Workflows for Traces, Evals, and Instrumentation

Two weeks ago we launched Alyx 2.0, the AI engineering agent inside Arize AX. Last week we launched the AX CLI, which made your trace data headless and agent-readable. Today we’re shipping the next piece: Arize Skills. The days of writing syntax are over We’re firmly in the agent era. You tell software what you…

2 minutes read
By Aparna Dhinakaran | 2 minutes read
Agents Product Releases Product tutorials
Arize AX CLI

From UI to Terminal: Bringing Alyx’s Superpowers Into Your Coding Agent

Last week we launched Alyx 2.0, the in-app AI engineering agent for Arize AX. Alyx replaced clicking through the UI with natural language intent. The AX CLI takes it a step further: making that same data machine readable so your coding agent can work with it directly. Here’s a quick demo of what that looks…

1 minute read
By Aparna Dhinakaran | 1 minute read
Agents Product Product Releases

Alyx 2.0: The AI Agent That Actually Plans

Two years ago, we started building Alyx with GPT-3.5, a vision, and honestly, no clear path forward. Agents were a buzzword. The models were rough. Tool calling was just emerging. But we had a hypothesis: the future wouldn’t be clicking through UIs or even just chatting with an assistant. You’d say what you want, and…

5 minutes read
By Sally-Ann DeLucia | 5 minutes read
Product Releases

New In Arize AX: January 2026 Updates

Arize AX pushed out a lot of new updates in January 2026. From improved evaluator hub to custom prompt release labels, here are some highlights. Evaluator Hub: Reusable Evaluators We’re excited to introduce the Evaluator Hub — a centralized place to create, version, and reuse evaluators across all your evaluation tasks. Why reusable evaluators? Previously,…

7 minutes read
By Sanjana Yeddula | 7 minutes read
Product Releases

New In Arize AX: Multi-Span Filters and Improved Playground Views

Arize AX released a raft of new updates to close out December of 2025. From improved playground views to multi-span filters, here’s are some highlights. Multi-Span Filters Filter traces using multiple span conditions with: AND, OR, NOT operators for combining conditions Indirectly Calls (->) and Directly Calls (=>) relationship filters Up to 5 filters to…

1 minute read
By Sanjana Yeddula | 1 minute read
Product Releases

New In Arize AX: OpenInference TypeScript 2.0, Session Annotations, Integrations Revamp

Arize AX released a flurry of updates in November of 2025. From OpenInference TypeScript 2.0 to a revamp of integrations, there is a lot to catch up on. OpenInference TypeScript 2.0 The updates include: Easy manual instrumentation with the same decorators, wrappers, and attribute helpers found in the Python openinference-instrumentation package. Function tracing utilities that…

2 minutes read
By Sanjana Yeddula | 2 minutes read
Product Releases

New In Arize AX: Tags, Data Fabric, Automatic Threshold Ranges for Monitors and More

October of 2025 was a crowded month for shipping new features in Arize AX, with updates to make AI agent engineering easier. From a new timeline tab for traces to data fabric, there is a lot to catch up on and try out. Tags Tags are a lightweight way for you to organize and label…

2 minutes read
By Sanjana Yeddula | 2 minutes read
Product Releases
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