From 69f0a75882ba847126fdc2e95a67b6c62fc6e401 Mon Sep 17 00:00:00 2001
From: Pablo Elgueta <pelgueta.t@gmail.com>
Date: Tue, 16 Sep 2025 10:28:22 -0300
Subject: [PATCH 1/2] feat: add support for global location in Vertex AI base
 URL

- Update _get_base_url method to handle 'global' location case
- Use 'aiplatform.googleapis.com' for global locations
- Use '{location}-aiplatform.googleapis.com' for regional locations
- Maintains backward compatibility with existing regional endpoints
---
 src/pipecat/services/google/llm_vertex.py | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/src/pipecat/services/google/llm_vertex.py b/src/pipecat/services/google/llm_vertex.py
index 22b6258a5..ee66c1f20 100644
--- a/src/pipecat/services/google/llm_vertex.py
+++ b/src/pipecat/services/google/llm_vertex.py
@@ -83,14 +83,23 @@ class GoogleVertexLLMService(OpenAILLMService):
         self._api_key = self._get_api_token(credentials, credentials_path)
 
         super().__init__(
-            api_key=self._api_key, base_url=base_url, model=model, params=params, **kwargs
+            api_key=self._api_key,
+            base_url=base_url,
+            model=model,
+            params=params,
+            **kwargs,
         )
 
     @staticmethod
     def _get_base_url(params: InputParams) -> str:
         """Construct the base URL for Vertex AI API."""
+        # Determine the correct API host based on location
+        if params.location == "global":
+            api_host = "aiplatform.googleapis.com"
+        else:
+            api_host = f"{params.location}-aiplatform.googleapis.com"
         return (
-            f"https://{params.location}-aiplatform.googleapis.com/v1/"
+            f"https://{api_host}/v1/"
             f"projects/{params.project_id}/locations/{params.location}/endpoints/openapi"
         )
 
@@ -118,12 +127,14 @@ class GoogleVertexLLMService(OpenAILLMService):
         if credentials:
             # Parse and load credentials from JSON string
             creds = service_account.Credentials.from_service_account_info(
-                json.loads(credentials), scopes=["https://www.googleapis.com/auth/cloud-platform"]
+                json.loads(credentials),
+                scopes=["https://www.googleapis.com/auth/cloud-platform"],
             )
         elif credentials_path:
             # Load credentials from JSON file
             creds = service_account.Credentials.from_service_account_file(
-                credentials_path, scopes=["https://www.googleapis.com/auth/cloud-platform"]
+                credentials_path,
+                scopes=["https://www.googleapis.com/auth/cloud-platform"],
             )
         else:
             try:

From 3c1b41df1300625fa3a52c492bb15309aad51ae6 Mon Sep 17 00:00:00 2001
From: Pablo Elgueta <pelgueta.t@gmail.com>
Date: Thu, 18 Sep 2025 17:39:03 +0100
Subject: [PATCH 2/2] docs: add changelog entry for global location support

- Document the new global location support in GoogleVertexLLMService
- Explain the difference between regional and global API hosts
- Follow Keep a Changelog format
---
 CHANGELOG.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index c56f58491..8f91beb00 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Added support for global location in `GoogleVertexLLMService`. The service now
+  supports both regional locations (e.g., "us-east4") and the "global" location
+  for Vertex AI endpoints. When using "global" location, the service will use
+  `aiplatform.googleapis.com` as the API host instead of the regional format.
+
 - Added `on_pipeline_finished` event to `PipelineTask`. This event will get
   fired when the pipeline is done running. This can be the result of a
   `StopFrame`, `CancelFrame` or `EndFrame`.