diff --git a/docs/changelog/111490.yaml b/docs/changelog/111490.yaml
deleted file mode 100644
index b67c16189cc62..0000000000000
--- a/docs/changelog/111490.yaml
+++ /dev/null
@@ -1,5 +0,0 @@
-pr: 111490
-summary: Temporarily return both `modelId` and `inferenceId` for GET /_inference until we migrate clients to only `inferenceId`
-area: Machine Learning
-type: bug
-issues: []
diff --git a/server/src/main/java/org/elasticsearch/inference/ModelConfigurations.java b/server/src/main/java/org/elasticsearch/inference/ModelConfigurations.java
index ce83a7c1b6c79..0df0378c4a5f4 100644
--- a/server/src/main/java/org/elasticsearch/inference/ModelConfigurations.java
+++ b/server/src/main/java/org/elasticsearch/inference/ModelConfigurations.java
@@ -126,7 +126,6 @@ public XContentBuilder toXContent(XContentBuilder builder, Params params) throws
         if (params.paramAsBoolean(USE_ID_FOR_INDEX, false)) {
             builder.field(INDEX_ONLY_ID_FIELD_NAME, inferenceEntityId);
         } else {
-            builder.field(INDEX_ONLY_ID_FIELD_NAME, inferenceEntityId);
             builder.field(INFERENCE_ID_FIELD_NAME, inferenceEntityId);
         }
         builder.field(TaskType.NAME, taskType.toString());
@@ -143,7 +142,6 @@ public XContentBuilder toFilteredXContent(XContentBuilder builder, Params params
         if (params.paramAsBoolean(USE_ID_FOR_INDEX, false)) {
             builder.field(INDEX_ONLY_ID_FIELD_NAME, inferenceEntityId);
         } else {
-            builder.field(INDEX_ONLY_ID_FIELD_NAME, inferenceEntityId);
             builder.field(INFERENCE_ID_FIELD_NAME, inferenceEntityId);
         }
         builder.field(TaskType.NAME, taskType.toString());