diff --git a/output/openapi/elasticsearch-serverless-openapi.json b/output/openapi/elasticsearch-serverless-openapi.json
index c0dee4fb7e..ad6386995c 100644
--- a/output/openapi/elasticsearch-serverless-openapi.json
+++ b/output/openapi/elasticsearch-serverless-openapi.json
@@ -36117,10 +36117,6 @@
                 "description": "The number of nearest neighbor candidates to consider per shard",
                 "type": "number"
               },
-              "boost": {
-                "description": "Boost value to apply to kNN scores",
-                "type": "number"
-              },
               "filter": {
                 "description": "Filters for the kNN search query",
                 "oneOf": [
diff --git a/output/schema/schema.json b/output/schema/schema.json
index 72d59a4d12..ad82afa074 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -44590,18 +44590,6 @@
             }
           }
         },
-        {
-          "description": "Boost value to apply to kNN scores",
-          "name": "boost",
-          "required": false,
-          "type": {
-            "kind": "instance_of",
-            "type": {
-              "name": "float",
-              "namespace": "_types"
-            }
-          }
-        },
         {
           "description": "Filters for the kNN search query",
           "name": "filter",
@@ -44642,7 +44630,7 @@
           }
         }
       ],
-      "specLocation": "_types/Knn.ts#L54-L69"
+      "specLocation": "_types/Knn.ts#L54-L67"
     },
     {
       "kind": "interface",
@@ -46120,7 +46108,7 @@
           }
         }
       ],
-      "specLocation": "_types/Knn.ts#L71-L74",
+      "specLocation": "_types/Knn.ts#L69-L72",
       "variants": {
         "kind": "container"
       }
@@ -48367,7 +48355,7 @@
           }
         }
       ],
-      "specLocation": "_types/Knn.ts#L76-L79"
+      "specLocation": "_types/Knn.ts#L74-L77"
     },
     {
       "kind": "enum",
diff --git a/output/schema/validation-errors.json b/output/schema/validation-errors.json
index 435bb52758..720eea3d87 100644
--- a/output/schema/validation-errors.json
+++ b/output/schema/validation-errors.json
@@ -66,7 +66,6 @@
         "Request: query parameter 'scroll' does not exist in the json spec",
         "Request: query parameter 'rest_total_hits_as_int' does not exist in the json spec",
         "interface definition _types:QueryVectorBuilder - Property text_embedding is a single-variant and must be required",
-        "interface definition _types:KnnQuery - Property 'boost' is already defined in an ancestor class",
         "type_alias definition _spec_utils:PipeSeparatedFlags / union_of / instance_of - No type definition for '_spec_utils:T'"
       ],
       "response": []
diff --git a/output/typescript/types.ts b/output/typescript/types.ts
index 93ec439e16..29baecaad5 100644
--- a/output/typescript/types.ts
+++ b/output/typescript/types.ts
@@ -2362,7 +2362,6 @@ export interface KnnQuery extends QueryDslQueryBase {
   query_vector?: QueryVector
   query_vector_builder?: QueryVectorBuilder
   num_candidates?: long
-  boost?: float
   filter?: QueryDslQueryContainer | QueryDslQueryContainer[]
   similarity?: float
 }
diff --git a/specification/_types/Knn.ts b/specification/_types/Knn.ts
index 60562df555..20571d369a 100644
--- a/specification/_types/Knn.ts
+++ b/specification/_types/Knn.ts
@@ -60,8 +60,6 @@ export interface KnnQuery extends QueryBase {
   query_vector_builder?: QueryVectorBuilder
   /** The number of nearest neighbor candidates to consider per shard */
   num_candidates?: long
-  /** Boost value to apply to kNN scores */
-  boost?: float
   /** Filters for the kNN search query */
   filter?: QueryContainer | QueryContainer[]
   /** The minimum similarity for a vector to be considered a match */