diff --git a/docs/changelog/127856.yaml b/docs/changelog/127856.yaml
new file mode 100644
index 0000000000000..bdd7657a58e73
--- /dev/null
+++ b/docs/changelog/127856.yaml
@@ -0,0 +1,5 @@
+pr: 127856
+summary: Fix services API Google Vertex AI Rerank location field requirement
+area: Machine Learning
+type: bug
+issues: []
diff --git a/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/googlevertexai/GoogleVertexAiService.java b/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/googlevertexai/GoogleVertexAiService.java
index 3e921f669e864..0c696bbb190f6 100644
--- a/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/googlevertexai/GoogleVertexAiService.java
+++ b/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/googlevertexai/GoogleVertexAiService.java
@@ -342,7 +342,7 @@ public static InferenceServiceConfiguration get() {
 
                 configurationMap.put(
                     LOCATION,
-                    new SettingsConfiguration.Builder(supportedTaskTypes).setDescription(
+                    new SettingsConfiguration.Builder(EnumSet.of(TaskType.TEXT_EMBEDDING)).setDescription(
                         "Please provide the GCP region where the Vertex AI API(s) is enabled. "
                             + "For more information, refer to the {geminiVertexAIDocs}."
                     )
diff --git a/x-pack/plugin/inference/src/test/java/org/elasticsearch/xpack/inference/services/googlevertexai/GoogleVertexAiServiceTests.java b/x-pack/plugin/inference/src/test/java/org/elasticsearch/xpack/inference/services/googlevertexai/GoogleVertexAiServiceTests.java
index 932dfc21e9396..8ea1c12ea9e4a 100644
--- a/x-pack/plugin/inference/src/test/java/org/elasticsearch/xpack/inference/services/googlevertexai/GoogleVertexAiServiceTests.java
+++ b/x-pack/plugin/inference/src/test/java/org/elasticsearch/xpack/inference/services/googlevertexai/GoogleVertexAiServiceTests.java
@@ -898,7 +898,7 @@ public void testGetConfiguration() throws Exception {
                                    "sensitive": false,
                                    "updatable": false,
                                    "type": "str",
-                                   "supported_task_types": ["text_embedding", "rerank"]
+                                   "supported_task_types": ["text_embedding"]
                                },
                                "rate_limit.requests_per_minute": {
                                    "description": "Minimize the number of rate limit errors.",