> ## Documentation Index
> Fetch the complete documentation index at: https://arizeai-433a7140.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# 11.29.2025: Add support for Claude Opus 4-5

> Available in Phoenix 12.18+

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  <img src="https://storage.googleapis.com/arize-phoenix-assets/assets/images/claude-opus-4-5-support.png" alt="Claude Opus 4-5 support" />
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With this update, you can use Claude Opus 4 or Claude Opus 4-5 directly in the Playground — giving you access to Anthropic's latest models alongside existing providers.

<Card title="Pull Request #10392" href="https://github.com/Arize-ai/phoenix/pull/10392" icon="github" horizontal>
  GitHub
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