Willis d16667f0b8 fix: use correct base URL for Vertex AI global endpoint with Claude models (#10288) ...

* fix: use correct base URL for Vertex AI global endpoint with Claude models

The AnthropicVertex SDK constructs the API hostname as
`${region}-aiplatform.googleapis.com`, which produces
`global-aiplatform.googleapis.com` when region is "global".
This hostname does not exist and returns 404.

Per Google Cloud docs, the correct global endpoint hostname is
`aiplatform.googleapis.com` (no region prefix). This fix overrides
the baseURL when region is "global" to use the correct hostname.

Fixes #10287

* chore: add changeset for vertex global endpoint fix

* fix: rebase on main and re-apply global endpoint baseURL override

2026-05-22 17:11:15 -07:00

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pink-ants-glow.md

fix: use correct base URL for Vertex AI global endpoint with Claude models (#10288)

2026-05-22 17:11:15 -07:00