diff --git a/output/openapi/elasticsearch-openapi.json b/output/openapi/elasticsearch-openapi.json
index 121c265df7..a1b04ed1ff 100644
--- a/output/openapi/elasticsearch-openapi.json
+++ b/output/openapi/elasticsearch-openapi.json
@@ -75220,12 +75220,13 @@
           },
           "ef_construction": {
             "type": "number"
+          },
+          "confidence_interval": {
+            "type": "number"
           }
         },
         "required": [
-          "type",
-          "m",
-          "ef_construction"
+          "type"
         ]
       },
       "_types.mapping:FlattenedProperty": {
diff --git a/output/openapi/elasticsearch-serverless-openapi.json b/output/openapi/elasticsearch-serverless-openapi.json
index 1c9e9e556f..d67a07918c 100644
--- a/output/openapi/elasticsearch-serverless-openapi.json
+++ b/output/openapi/elasticsearch-serverless-openapi.json
@@ -49477,12 +49477,13 @@
           },
           "ef_construction": {
             "type": "number"
+          },
+          "confidence_interval": {
+            "type": "number"
           }
         },
         "required": [
-          "type",
-          "m",
-          "ef_construction"
+          "type"
         ]
       },
       "_types.mapping:FlattenedProperty": {
diff --git a/output/schema/schema-serverless.json b/output/schema/schema-serverless.json
index adbba972bf..17a06964ac 100644
--- a/output/schema/schema-serverless.json
+++ b/output/schema/schema-serverless.json
@@ -84616,7 +84616,7 @@
         },
         {
           "name": "m",
-          "required": true,
+          "required": false,
           "type": {
             "kind": "instance_of",
             "type": {
@@ -84627,7 +84627,7 @@
         },
         {
           "name": "ef_construction",
-          "required": true,
+          "required": false,
           "type": {
             "kind": "instance_of",
             "type": {
@@ -84635,9 +84635,20 @@
               "namespace": "_types"
             }
           }
+        },
+        {
+          "name": "confidence_interval",
+          "required": false,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "float",
+              "namespace": "_types"
+            }
+          }
         }
       ],
-      "specLocation": "_types/mapping/DenseVectorIndexOptions.ts#L22-L26"
+      "specLocation": "_types/mapping/DenseVectorIndexOptions.ts#L22-L27"
     },
     {
       "inherits": {
diff --git a/output/schema/schema.json b/output/schema/schema.json
index d0b00631c3..e5eaf5d5ea 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -68895,7 +68895,7 @@
         },
         {
           "name": "m",
-          "required": true,
+          "required": false,
           "type": {
             "kind": "instance_of",
             "type": {
@@ -68906,7 +68906,7 @@
         },
         {
           "name": "ef_construction",
-          "required": true,
+          "required": false,
           "type": {
             "kind": "instance_of",
             "type": {
@@ -68914,9 +68914,20 @@
               "namespace": "_types"
             }
           }
+        },
+        {
+          "name": "confidence_interval",
+          "required": false,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "float",
+              "namespace": "_types"
+            }
+          }
         }
       ],
-      "specLocation": "_types/mapping/DenseVectorIndexOptions.ts#L22-L26"
+      "specLocation": "_types/mapping/DenseVectorIndexOptions.ts#L22-L27"
     },
     {
       "inherits": {
diff --git a/output/typescript/types.ts b/output/typescript/types.ts
index 993ef2ee0f..1a0bb06f1d 100644
--- a/output/typescript/types.ts
+++ b/output/typescript/types.ts
@@ -4997,8 +4997,9 @@ export interface MappingDateRangeProperty extends MappingRangePropertyBase {
 
 export interface MappingDenseVectorIndexOptions {
   type: string
-  m: integer
-  ef_construction: integer
+  m?: integer
+  ef_construction?: integer
+  confidence_interval?: float
 }
 
 export interface MappingDenseVectorProperty extends MappingPropertyBase {
diff --git a/specification/_types/mapping/DenseVectorIndexOptions.ts b/specification/_types/mapping/DenseVectorIndexOptions.ts
index 9876f53942..dd05a7ccd1 100644
--- a/specification/_types/mapping/DenseVectorIndexOptions.ts
+++ b/specification/_types/mapping/DenseVectorIndexOptions.ts
@@ -17,10 +17,11 @@
  * under the License.
  */
 
-import { integer } from '@_types/Numeric'
+import { float, integer } from '@_types/Numeric'
 
 export class DenseVectorIndexOptions {
   type: string
-  m: integer
-  ef_construction: integer
+  m?: integer
+  ef_construction?: integer
+  confidence_interval?: float
 }