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HomeDocsClaude Code CLI 2 Nov 2026
One change · claude-code

Claude Code on Google Cloud's Agent Platform changedgoogle-vertex-ai

Nearest release: v2.1.317, published an hour after upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 2 Nov 2026 22:00 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 2 Nov 2026 22:07 UTC.

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189189When Claude Code starts with Google Cloud's Agent Platform configured, it verifies that the models it intends to use are accessible in your project.
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191If you have pinned a model version that is older than the current Claude Code default, and your project can invoke the newer version, Claude Code prompts you to update the pin. Accepting writes the new model ID to your [user settings file](https://code.claude.com/docs/en/settings.md) and restarts Claude Code. Declining is remembered until the next default version change.
191You may have pinned a model version that is older than the current Claude Code default. If your project can invoke the newer version, Claude Code prompts you to update the pin:
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193* **If you accept**: Claude Code writes the new model ID to your [user settings file](https://code.claude.com/docs/en/settings.md) and restarts
194* **If you decline**: Claude Code remembers your choice until the next default version change
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196For a pin in the `env` block of [managed settings](https://code.claude.com/docs/en/managed-settings.md), Claude Code runs no check and shows no prompt.
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193198If you have not pinned a model and the current default is unavailable in your project, Claude Code falls back for the current session and shows a notice. It tries earlier versions of the default model first and, when the default is an Opus model and no Opus version is available, falls back to the default Sonnet model. The fallback is not persisted. Enable the newer model in [Model Garden](https://console.cloud.google.com/vertex-ai/model-garden) or [pin a version](#5-pin-model-versions) to make the choice permanent.
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