diff --git a/output/openapi/elasticsearch-openapi.json b/output/openapi/elasticsearch-openapi.json
index 3087b5fdf4..68498e0257 100644
--- a/output/openapi/elasticsearch-openapi.json
+++ b/output/openapi/elasticsearch-openapi.json
@@ -170,9 +170,6 @@
           {
             "$ref": "#/components/parameters/async_search.submit#keep_on_completion"
           },
-          {
-            "$ref": "#/components/parameters/async_search.submit#keep_alive"
-          },
           {
             "$ref": "#/components/parameters/async_search.submit#allow_no_indices"
           },
@@ -221,9 +218,6 @@
           {
             "$ref": "#/components/parameters/async_search.submit#preference"
           },
-          {
-            "$ref": "#/components/parameters/async_search.submit#pre_filter_shard_size"
-          },
           {
             "$ref": "#/components/parameters/async_search.submit#request_cache"
           },
@@ -326,9 +320,6 @@
           {
             "$ref": "#/components/parameters/async_search.submit#keep_on_completion"
           },
-          {
-            "$ref": "#/components/parameters/async_search.submit#keep_alive"
-          },
           {
             "$ref": "#/components/parameters/async_search.submit#allow_no_indices"
           },
@@ -377,9 +368,6 @@
           {
             "$ref": "#/components/parameters/async_search.submit#preference"
           },
-          {
-            "$ref": "#/components/parameters/async_search.submit#pre_filter_shard_size"
-          },
           {
             "$ref": "#/components/parameters/async_search.submit#request_cache"
           },
@@ -92694,16 +92682,6 @@
         },
         "style": "form"
       },
-      "async_search.submit#keep_alive": {
-        "in": "query",
-        "name": "keep_alive",
-        "description": "Specifies how long the async search needs to be available.\nOngoing async searches and any saved search results are deleted after this period.",
-        "deprecated": false,
-        "schema": {
-          "$ref": "#/components/schemas/_types:Duration"
-        },
-        "style": "form"
-      },
       "async_search.submit#allow_no_indices": {
         "in": "query",
         "name": "allow_no_indices",
@@ -92864,16 +92842,6 @@
         },
         "style": "form"
       },
-      "async_search.submit#pre_filter_shard_size": {
-        "in": "query",
-        "name": "pre_filter_shard_size",
-        "description": "The default value cannot be changed, which enforces the execution of a pre-filter roundtrip to retrieve statistics from each shard so that the ones that surely don’t hold any document matching the query get skipped.",
-        "deprecated": false,
-        "schema": {
-          "type": "number"
-        },
-        "style": "form"
-      },
       "async_search.submit#request_cache": {
         "in": "query",
         "name": "request_cache",
diff --git a/output/openapi/elasticsearch-serverless-openapi.json b/output/openapi/elasticsearch-serverless-openapi.json
index d907d66327..2f460e5736 100644
--- a/output/openapi/elasticsearch-serverless-openapi.json
+++ b/output/openapi/elasticsearch-serverless-openapi.json
@@ -170,9 +170,6 @@
           {
             "$ref": "#/components/parameters/async_search.submit#keep_on_completion"
           },
-          {
-            "$ref": "#/components/parameters/async_search.submit#keep_alive"
-          },
           {
             "$ref": "#/components/parameters/async_search.submit#allow_no_indices"
           },
@@ -221,9 +218,6 @@
           {
             "$ref": "#/components/parameters/async_search.submit#preference"
           },
-          {
-            "$ref": "#/components/parameters/async_search.submit#pre_filter_shard_size"
-          },
           {
             "$ref": "#/components/parameters/async_search.submit#request_cache"
           },
@@ -326,9 +320,6 @@
           {
             "$ref": "#/components/parameters/async_search.submit#keep_on_completion"
           },
-          {
-            "$ref": "#/components/parameters/async_search.submit#keep_alive"
-          },
           {
             "$ref": "#/components/parameters/async_search.submit#allow_no_indices"
           },
@@ -377,9 +368,6 @@
           {
             "$ref": "#/components/parameters/async_search.submit#preference"
           },
-          {
-            "$ref": "#/components/parameters/async_search.submit#pre_filter_shard_size"
-          },
           {
             "$ref": "#/components/parameters/async_search.submit#request_cache"
           },
@@ -56840,16 +56828,6 @@
         },
         "style": "form"
       },
-      "async_search.submit#keep_alive": {
-        "in": "query",
-        "name": "keep_alive",
-        "description": "Specifies how long the async search needs to be available.\nOngoing async searches and any saved search results are deleted after this period.",
-        "deprecated": false,
-        "schema": {
-          "$ref": "#/components/schemas/_types:Duration"
-        },
-        "style": "form"
-      },
       "async_search.submit#allow_no_indices": {
         "in": "query",
         "name": "allow_no_indices",
@@ -57010,16 +56988,6 @@
         },
         "style": "form"
       },
-      "async_search.submit#pre_filter_shard_size": {
-        "in": "query",
-        "name": "pre_filter_shard_size",
-        "description": "The default value cannot be changed, which enforces the execution of a pre-filter roundtrip to retrieve statistics from each shard so that the ones that surely don’t hold any document matching the query get skipped.",
-        "deprecated": false,
-        "schema": {
-          "type": "number"
-        },
-        "style": "form"
-      },
       "async_search.submit#request_cache": {
         "in": "query",
         "name": "request_cache",
diff --git a/output/schema/schema-serverless.json b/output/schema/schema-serverless.json
index f0582e5320..135199d4d7 100644
--- a/output/schema/schema-serverless.json
+++ b/output/schema/schema-serverless.json
@@ -10698,19 +10698,6 @@
             }
           }
         },
-        {
-          "description": "Specifies how long the async search needs to be available.\nOngoing async searches and any saved search results are deleted after this period.",
-          "name": "keep_alive",
-          "required": false,
-          "serverDefault": "5d",
-          "type": {
-            "kind": "instance_of",
-            "type": {
-              "name": "Duration",
-              "namespace": "_types"
-            }
-          }
-        },
         {
           "description": "Whether to ignore if a wildcard indices expression resolves into no concrete indices. (This includes `_all` string or when no indices have been specified)",
           "name": "allow_no_indices",
@@ -10905,19 +10892,6 @@
             }
           }
         },
-        {
-          "description": "The default value cannot be changed, which enforces the execution of a pre-filter roundtrip to retrieve statistics from each shard so that the ones that surely don’t hold any document matching the query get skipped.",
-          "name": "pre_filter_shard_size",
-          "required": false,
-          "serverDefault": 1,
-          "type": {
-            "kind": "instance_of",
-            "type": {
-              "name": "long",
-              "namespace": "_types"
-            }
-          }
-        },
         {
           "description": "Specify if request cache should be used for this request or not, defaults to true",
           "name": "request_cache",
@@ -11226,7 +11200,7 @@
           }
         }
       ],
-      "specLocation": "async_search/submit/AsyncSearchSubmitRequest.ts#L54-L289"
+      "specLocation": "async_search/submit/AsyncSearchSubmitRequest.ts#L54-L278"
     },
     {
       "body": {
diff --git a/output/schema/schema.json b/output/schema/schema.json
index 7fa7b55def..04c7b94a24 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -88242,19 +88242,6 @@
             }
           }
         },
-        {
-          "description": "Specifies how long the async search needs to be available.\nOngoing async searches and any saved search results are deleted after this period.",
-          "name": "keep_alive",
-          "required": false,
-          "serverDefault": "5d",
-          "type": {
-            "kind": "instance_of",
-            "type": {
-              "name": "Duration",
-              "namespace": "_types"
-            }
-          }
-        },
         {
           "description": "Whether to ignore if a wildcard indices expression resolves into no concrete indices. (This includes `_all` string or when no indices have been specified)",
           "name": "allow_no_indices",
@@ -88449,19 +88436,6 @@
             }
           }
         },
-        {
-          "description": "The default value cannot be changed, which enforces the execution of a pre-filter roundtrip to retrieve statistics from each shard so that the ones that surely don’t hold any document matching the query get skipped.",
-          "name": "pre_filter_shard_size",
-          "required": false,
-          "serverDefault": 1,
-          "type": {
-            "kind": "instance_of",
-            "type": {
-              "name": "long",
-              "namespace": "_types"
-            }
-          }
-        },
         {
           "description": "Specify if request cache should be used for this request or not, defaults to true",
           "name": "request_cache",
@@ -88770,7 +88744,7 @@
           }
         }
       ],
-      "specLocation": "async_search/submit/AsyncSearchSubmitRequest.ts#L54-L289"
+      "specLocation": "async_search/submit/AsyncSearchSubmitRequest.ts#L54-L278"
     },
     {
       "kind": "response",
diff --git a/output/typescript/types.ts b/output/typescript/types.ts
index 8b06c657ad..41b3752448 100644
--- a/output/typescript/types.ts
+++ b/output/typescript/types.ts
@@ -6762,7 +6762,6 @@ export interface AsyncSearchSubmitRequest extends RequestBase {
   index?: Indices
   wait_for_completion_timeout?: Duration
   keep_on_completion?: boolean
-  keep_alive?: Duration
   allow_no_indices?: boolean
   allow_partial_search_results?: boolean
   analyzer?: string
@@ -6779,7 +6778,6 @@ export interface AsyncSearchSubmitRequest extends RequestBase {
   lenient?: boolean
   max_concurrent_shard_requests?: long
   preference?: string
-  pre_filter_shard_size?: long
   request_cache?: boolean
   routing?: Routing
   search_type?: SearchType
diff --git a/specification/_json_spec/async_search.submit.json b/specification/_json_spec/async_search.submit.json
index 628a79a4e9..2d5ad25831 100644
--- a/specification/_json_spec/async_search.submit.json
+++ b/specification/_json_spec/async_search.submit.json
@@ -39,11 +39,6 @@
         "description": "Control whether the response should be stored in the cluster if it completed within the provided [wait_for_completion] time (default: false)",
         "default": false
       },
-      "keep_alive": {
-        "type": "time",
-        "description": "Update the time interval in which the results (partial or final) for this search will be available",
-        "default": "5d"
-      },
       "batched_reduce_size": {
         "type": "number",
         "description": "The number of shard results that should be reduced at once on the coordinating node. This value should be used as the granularity at which progress results will be made available.",
@@ -118,11 +113,6 @@
         "type": "string",
         "description": "Specify the node or shard the operation should be performed on (default: random)"
       },
-      "pre_filter_shard_size": {
-        "type": "number",
-        "default": 1,
-        "description": "Cannot be changed: this is to enforce the execution of a pre-filter roundtrip to retrieve statistics from each shard so that the ones that surely don’t hold any document matching the query get skipped."
-      },
       "rest_total_hits_as_int": {
         "type": "boolean",
         "description": "Indicates whether hits.total should be rendered as an integer or an object in the rest search response",
diff --git a/specification/async_search/submit/AsyncSearchSubmitRequest.ts b/specification/async_search/submit/AsyncSearchSubmitRequest.ts
index 6154bcfbb8..f1d59c9300 100644
--- a/specification/async_search/submit/AsyncSearchSubmitRequest.ts
+++ b/specification/async_search/submit/AsyncSearchSubmitRequest.ts
@@ -67,8 +67,8 @@ import { Duration } from '@_types/Time'
  * @doc_tag search
  */
 // NOTE: this is a SearchRequest with:
-//  * 3 added parameters: wait_for_completion_timeout, keep_on_completion and keep_alive
-//  * 1 removed parameters: scroll
+//  * 2 added parameters: wait_for_completion_timeout, keep_on_completion
+//  * 2 removed parameters: scroll, pre_filter_shard_size
 export interface Request extends RequestBase {
   path_parts: {
     index?: Indices
@@ -85,12 +85,6 @@ export interface Request extends RequestBase {
      * @server_default false
      */
     keep_on_completion?: boolean
-    /**
-     * Specifies how long the async search needs to be available.
-     * Ongoing async searches and any saved search results are deleted after this period.
-     * @server_default 5d
-     */
-    keep_alive?: Duration
     allow_no_indices?: boolean
     allow_partial_search_results?: boolean
     analyzer?: string
@@ -116,11 +110,6 @@ export interface Request extends RequestBase {
     lenient?: boolean
     max_concurrent_shard_requests?: long
     preference?: string
-    /**
-     * The default value cannot be changed, which enforces the execution of a pre-filter roundtrip to retrieve statistics from each shard so that the ones that surely don’t hold any document matching the query get skipped.
-     * @server_default 1
-     */
-    pre_filter_shard_size?: long
     /** @server_default true */
     request_cache?: boolean
     routing?: Routing