diff --git a/output/openapi/elasticsearch-openapi.json b/output/openapi/elasticsearch-openapi.json
index a993f7665a..ec0392bf52 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"
-          },
           {
             "$ref": "#/components/parameters/async_search.submit#allow_no_indices"
           },
@@ -224,9 +221,6 @@
           {
             "$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"
           },
@@ -329,9 +323,6 @@
           {
             "$ref": "#/components/parameters/async_search.submit#keep_on_completion"
           },
-          {
-            "$ref": "#/components/parameters/async_search.submit#keep_alive"
-          },
           {
             "$ref": "#/components/parameters/async_search.submit#allow_no_indices"
           },
@@ -383,9 +374,6 @@
           {
             "$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"
           },
@@ -92580,16 +92568,6 @@
         },
         "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": {
-          "$ref": "#/components/schemas/_types:Duration"
-        },
-        "style": "form"
-      },
       "async_search.submit#allow_no_indices": {
         "in": "query",
         "name": "allow_no_indices",
@@ -92759,16 +92737,6 @@
         },
         "style": "form"
       },
-      "async_search.submit#pre_filter_shard_size": {
-        "in": "query",
-        "name": "pre_filter_shard_size",
-        "description": "The default value cannot be changed, which enforces the execution of a pre-filter roundtrip to retrieve statistics from each shard so that the ones that surely don’t hold any document matching the query get skipped.",
-        "deprecated": false,
-        "schema": {
-          "type": "number"
-        },
-        "style": "form"
-      },
       "async_search.submit#request_cache": {
         "in": "query",
         "name": "request_cache",
diff --git a/output/openapi/elasticsearch-serverless-openapi.json b/output/openapi/elasticsearch-serverless-openapi.json
index d42c978569..cca4e875b2 100644
--- a/output/openapi/elasticsearch-serverless-openapi.json
+++ b/output/openapi/elasticsearch-serverless-openapi.json
@@ -170,9 +170,6 @@
           {
             "$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"
           },
@@ -224,9 +221,6 @@
           {
             "$ref": "#/components/parameters/async_search.submit#preference"
           },
-          {
-            "$ref": "#/components/parameters/async_search.submit#pre_filter_shard_size"
-          },
           {
             "$ref": "#/components/parameters/async_search.submit#request_cache"
           },
@@ -329,9 +323,6 @@
           {
             "$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"
           },
@@ -383,9 +374,6 @@
           {
             "$ref": "#/components/parameters/async_search.submit#preference"
           },
-          {
-            "$ref": "#/components/parameters/async_search.submit#pre_filter_shard_size"
-          },
           {
             "$ref": "#/components/parameters/async_search.submit#request_cache"
           },
@@ -56914,16 +56902,6 @@
         },
         "style": "form"
       },
-      "async_search.submit#keep_alive": {
-        "in": "query",
-        "name": "keep_alive",
-        "description": "Specifies how long the async search needs to be available.\nOngoing async searches and any saved search results are deleted after this period.",
-        "deprecated": false,
-        "schema": {
-          "$ref": "#/components/schemas/_types:Duration"
-        },
-        "style": "form"
-      },
       "async_search.submit#allow_no_indices": {
         "in": "query",
         "name": "allow_no_indices",
@@ -57093,16 +57071,6 @@
         },
         "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 9056614862..3c77040c8c 100644
--- a/output/schema/schema-serverless.json
+++ b/output/schema/schema-serverless.json
@@ -10687,19 +10687,6 @@
             }
           }
         },
-        {
-          "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#L55-L291"
+      "specLocation": "async_search/submit/AsyncSearchSubmitRequest.ts#L55-L280"
     },
     {
       "body": {
diff --git a/output/schema/schema.json b/output/schema/schema.json
index e96717aa09..a06f2f730e 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -88092,19 +88092,6 @@
             }
           }
         },
-        {
-          "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",
@@ -88310,19 +88297,6 @@
             }
           }
         },
-        {
-          "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",
@@ -88631,7 +88605,7 @@
           }
         }
       ],
-      "specLocation": "async_search/submit/AsyncSearchSubmitRequest.ts#L55-L291"
+      "specLocation": "async_search/submit/AsyncSearchSubmitRequest.ts#L55-L280"
     },
     {
       "kind": "response",
diff --git a/output/typescript/types.ts b/output/typescript/types.ts
index a09c6d2f3a..0cefa51352 100644
--- a/output/typescript/types.ts
+++ b/output/typescript/types.ts
@@ -6747,7 +6747,6 @@ 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
@@ -6765,7 +6764,6 @@ export interface AsyncSearchSubmitRequest extends RequestBase {
   max_concurrent_shard_requests?: long
   min_compatible_shard_node?: VersionString
   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 28798b2ee5..ad6f95179a 100644
--- a/specification/async_search/submit/AsyncSearchSubmitRequest.ts
+++ b/specification/async_search/submit/AsyncSearchSubmitRequest.ts
@@ -68,8 +68,8 @@ 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
@@ -86,12 +86,6 @@ 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
@@ -118,11 +112,6 @@ export interface Request extends RequestBase {
     max_concurrent_shard_requests?: long
     min_compatible_shard_node?: VersionString
     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