diff --git a/genai/content_cache/content_cache_test.go b/genai/content_cache/content_cache_test.go
index 1c9253efa1..da8746a0b0 100644
--- a/genai/content_cache/content_cache_test.go
+++ b/genai/content_cache/content_cache_test.go
@@ -27,7 +27,8 @@ func TestContentCaching(t *testing.T) {
 	tc := testutil.SystemTest(t)
 
 	t.Setenv("GOOGLE_GENAI_USE_VERTEXAI", "1")
-	t.Setenv("GOOGLE_CLOUD_LOCATION", "us-central1")
+	// t.Setenv("GOOGLE_CLOUD_LOCATION", "us-central1")
+	t.Setenv("GOOGLE_CLOUD_LOCATION", "global")
 	t.Setenv("GOOGLE_CLOUD_PROJECT", tc.ProjectID)
 
 	buf := new(bytes.Buffer)
diff --git a/genai/controlled_generation/controlled_generation_examples_test.go b/genai/controlled_generation/controlled_generation_examples_test.go
index 311e86129f..17b9dbe54a 100644
--- a/genai/controlled_generation/controlled_generation_examples_test.go
+++ b/genai/controlled_generation/controlled_generation_examples_test.go
@@ -25,7 +25,8 @@ func TestTextGeneration(t *testing.T) {
 	tc := testutil.SystemTest(t)
 
 	t.Setenv("GOOGLE_GENAI_USE_VERTEXAI", "1")
-	t.Setenv("GOOGLE_CLOUD_LOCATION", "us-central1")
+	// t.Setenv("GOOGLE_CLOUD_LOCATION", "us-central1")
+	t.Setenv("GOOGLE_CLOUD_LOCATION", "global")
 	t.Setenv("GOOGLE_CLOUD_PROJECT", tc.ProjectID)
 
 	buf := new(bytes.Buffer)
diff --git a/genai/count_tokens/count_tokens_examples_test.go b/genai/count_tokens/count_tokens_examples_test.go
index 22da59959a..64dea2d4b8 100644
--- a/genai/count_tokens/count_tokens_examples_test.go
+++ b/genai/count_tokens/count_tokens_examples_test.go
@@ -25,7 +25,8 @@ func TestTextGeneration(t *testing.T) {
 	tc := testutil.SystemTest(t)
 
 	t.Setenv("GOOGLE_GENAI_USE_VERTEXAI", "1")
-	t.Setenv("GOOGLE_CLOUD_LOCATION", "us-central1")
+	// t.Setenv("GOOGLE_CLOUD_LOCATION", "us-central1")
+	t.Setenv("GOOGLE_CLOUD_LOCATION", "global")
 	t.Setenv("GOOGLE_CLOUD_PROJECT", tc.ProjectID)
 
 	buf := new(bytes.Buffer)
diff --git a/genai/text_generation/text_generation_examples_test.go b/genai/text_generation/text_generation_examples_test.go
index 453a57463b..c87022490c 100644
--- a/genai/text_generation/text_generation_examples_test.go
+++ b/genai/text_generation/text_generation_examples_test.go
@@ -25,7 +25,8 @@ func TestTextGeneration(t *testing.T) {
 	tc := testutil.SystemTest(t)
 
 	t.Setenv("GOOGLE_GENAI_USE_VERTEXAI", "1")
-	t.Setenv("GOOGLE_CLOUD_LOCATION", "us-central1")
+	// t.Setenv("GOOGLE_CLOUD_LOCATION", "us-central1")
+	t.Setenv("GOOGLE_CLOUD_LOCATION", "global")
 	t.Setenv("GOOGLE_CLOUD_PROJECT", tc.ProjectID)
 
 	buf := new(bytes.Buffer)
diff --git a/genai/tools/tools_examples_test.go b/genai/tools/tools_examples_test.go
index 867e868ae1..fb5534b874 100644
--- a/genai/tools/tools_examples_test.go
+++ b/genai/tools/tools_examples_test.go
@@ -25,7 +25,8 @@ func TestTextGeneration(t *testing.T) {
 	tc := testutil.SystemTest(t)
 
 	t.Setenv("GOOGLE_GENAI_USE_VERTEXAI", "1")
-	t.Setenv("GOOGLE_CLOUD_LOCATION", "us-central1")
+	// t.Setenv("GOOGLE_CLOUD_LOCATION", "us-central1")
+	t.Setenv("GOOGLE_CLOUD_LOCATION", "global")
 	t.Setenv("GOOGLE_CLOUD_PROJECT", tc.ProjectID)
 
 	buf := new(bytes.Buffer)