---
title: "11.12.2025: Updated Anthropic Model List"
description: Available in Phoenix 12.15+
---

This update enhances the Anthropic model registrations in Arize Phoenix by adding support for the **4.5 Sonnet/Haiku variants** and removing several legacy **3.x Sonnet/Opus entries.** 

<Card title="Pull Request #10255" href="https://github.com/Arize-ai/phoenix/pull/10255" icon="github" horizontal>
GitHub
</Card>
