diff --git a/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/ibmwatsonx/rerank/IbmWatsonxRerankServiceSettings.java b/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/ibmwatsonx/rerank/IbmWatsonxRerankServiceSettings.java
index c3e50fbdab24a..969622f9ba54f 100644
--- a/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/ibmwatsonx/rerank/IbmWatsonxRerankServiceSettings.java
+++ b/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/ibmwatsonx/rerank/IbmWatsonxRerankServiceSettings.java
@@ -27,15 +27,11 @@
 import java.util.Map;
 import java.util.Objects;
 
-import static org.elasticsearch.xpack.inference.services.ServiceFields.DIMENSIONS;
-import static org.elasticsearch.xpack.inference.services.ServiceFields.MAX_INPUT_TOKENS;
 import static org.elasticsearch.xpack.inference.services.ServiceFields.MODEL_ID;
 import static org.elasticsearch.xpack.inference.services.ServiceFields.URL;
 import static org.elasticsearch.xpack.inference.services.ServiceUtils.convertToUri;
 import static org.elasticsearch.xpack.inference.services.ServiceUtils.createUri;
 import static org.elasticsearch.xpack.inference.services.ServiceUtils.extractRequiredString;
-import static org.elasticsearch.xpack.inference.services.ServiceUtils.extractSimilarity;
-import static org.elasticsearch.xpack.inference.services.ServiceUtils.removeAsType;
 import static org.elasticsearch.xpack.inference.services.ibmwatsonx.IbmWatsonxServiceFields.API_VERSION;
 import static org.elasticsearch.xpack.inference.services.ibmwatsonx.IbmWatsonxServiceFields.PROJECT_ID;
 
@@ -56,11 +52,6 @@ public static IbmWatsonxRerankServiceSettings fromMap(Map<String, Object> map, C
         URI uri = convertToUri(url, URL, ModelConfigurations.SERVICE_SETTINGS, validationException);
         String apiVersion = extractRequiredString(map, API_VERSION, ModelConfigurations.SERVICE_SETTINGS, validationException);
 
-        // We need to extract/remove those fields to avoid unknown service settings errors
-        extractSimilarity(map, ModelConfigurations.SERVICE_SETTINGS, validationException);
-        removeAsType(map, DIMENSIONS, Integer.class);
-        removeAsType(map, MAX_INPUT_TOKENS, Integer.class);
-
         String modelId = extractRequiredString(map, MODEL_ID, ModelConfigurations.SERVICE_SETTINGS, validationException);
         String projectId = extractRequiredString(map, PROJECT_ID, ModelConfigurations.SERVICE_SETTINGS, validationException);