diff --git a/output/openapi/elasticsearch-serverless-openapi.json b/output/openapi/elasticsearch-serverless-openapi.json
index af0b6b3a15..ae3f661524 100644
--- a/output/openapi/elasticsearch-serverless-openapi.json
+++ b/output/openapi/elasticsearch-serverless-openapi.json
@@ -26343,6 +26343,10 @@
             "schema": {
               "type": "object",
               "properties": {
+                "query": {
+                  "description": "Query input, required for rerank task.\nNot required for other tasks.",
+                  "type": "string"
+                },
                 "input": {
                   "description": "Text input to the model.\nEither a string or an array of strings.",
                   "oneOf": [
@@ -49592,7 +49596,9 @@
         "type": "string",
         "enum": [
           "sparse_embedding",
-          "text_embedding"
+          "text_embedding",
+          "rerank",
+          "completion"
         ]
       },
       "inference._types:ModelConfigContainer": {
@@ -49671,6 +49677,12 @@
             "items": {
               "$ref": "#/components/schemas/inference._types:CompletionResult"
             }
+          },
+          "rerank": {
+            "type": "array",
+            "items": {
+              "$ref": "#/components/schemas/inference._types:RankedDocument"
+            }
           }
         },
         "minProperties": 1,
@@ -49741,6 +49753,24 @@
           "result"
         ]
       },
+      "inference._types:RankedDocument": {
+        "type": "object",
+        "properties": {
+          "id": {
+            "type": "string"
+          },
+          "score": {
+            "type": "string"
+          },
+          "text": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "score"
+        ]
+      },
       "_types:ElasticsearchVersionInfo": {
         "type": "object",
         "properties": {
diff --git a/output/schema/schema.json b/output/schema/schema.json
index 55413ee362..d017fbed03 100644
--- a/output/schema/schema.json
+++ b/output/schema/schema.json
@@ -128392,9 +128392,23 @@
               }
             }
           }
+        },
+        {
+          "name": "rerank",
+          "required": false,
+          "type": {
+            "kind": "array_of",
+            "value": {
+              "kind": "instance_of",
+              "type": {
+                "name": "RankedDocument",
+                "namespace": "inference._types"
+              }
+            }
+          }
         }
       ],
-      "specLocation": "inference/_types/Results.ts#L66-L75",
+      "specLocation": "inference/_types/Results.ts#L77-L87",
       "variants": {
         "kind": "container"
       }
@@ -128487,6 +128501,50 @@
       ],
       "specLocation": "inference/_types/Services.ts#L41-L53"
     },
+    {
+      "description": "The rerank result object representing a single ranked document\nid: the original index of the document in the request\nscore: the score of the document relative to the query\ntext: Optional, the text of the document, if requested",
+      "kind": "interface",
+      "name": {
+        "name": "RankedDocument",
+        "namespace": "inference._types"
+      },
+      "properties": [
+        {
+          "name": "id",
+          "required": true,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "string",
+              "namespace": "_builtins"
+            }
+          }
+        },
+        {
+          "name": "score",
+          "required": true,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "string",
+              "namespace": "_builtins"
+            }
+          }
+        },
+        {
+          "name": "text",
+          "required": false,
+          "type": {
+            "kind": "instance_of",
+            "type": {
+              "name": "string",
+              "namespace": "_builtins"
+            }
+          }
+        }
+      ],
+      "specLocation": "inference/_types/Results.ts#L66-L76"
+    },
     {
       "kind": "type_alias",
       "name": {
@@ -128565,13 +128623,19 @@
         },
         {
           "name": "text_embedding"
+        },
+        {
+          "name": "rerank"
+        },
+        {
+          "name": "completion"
         }
       ],
       "name": {
         "name": "TaskType",
         "namespace": "inference._types"
       },
-      "specLocation": "inference/_types/TaskType.ts#L20-L26"
+      "specLocation": "inference/_types/TaskType.ts#L20-L28"
     },
     {
       "description": "The text embedding result object for byte representation",
@@ -128765,6 +128829,18 @@
       "body": {
         "kind": "properties",
         "properties": [
+          {
+            "description": "Query input, required for rerank task.\nNot required for other tasks.",
+            "name": "query",
+            "required": false,
+            "type": {
+              "kind": "instance_of",
+              "type": {
+                "name": "string",
+                "namespace": "_builtins"
+              }
+            }
+          },
           {
             "description": "Text input to the model.\nEither a string or an array of strings.",
             "name": "input",
@@ -128845,7 +128921,7 @@
         }
       ],
       "query": [],
-      "specLocation": "inference/inference/InferenceRequest.ts#L25-L53"
+      "specLocation": "inference/inference/InferenceRequest.ts#L25-L58"
     },
     {
       "body": {
diff --git a/output/typescript/types.ts b/output/typescript/types.ts
index 0c7bb1ef5d..8e7d4596a8 100644
--- a/output/typescript/types.ts
+++ b/output/typescript/types.ts
@@ -11508,6 +11508,7 @@ export interface InferenceInferenceResult {
   text_embedding?: InferenceTextEmbeddingResult[]
   sparse_embedding?: InferenceSparseEmbeddingResult[]
   completion?: InferenceCompletionResult[]
+  rerank?: InferenceRankedDocument[]
 }
 
 export interface InferenceModelConfig {
@@ -11521,6 +11522,12 @@ export interface InferenceModelConfigContainer extends InferenceModelConfig {
   task_type: InferenceTaskType
 }
 
+export interface InferenceRankedDocument {
+  id: string
+  score: string
+  text?: string
+}
+
 export type InferenceServiceSettings = any
 
 export interface InferenceSparseEmbeddingResult {
@@ -11531,7 +11538,7 @@ export type InferenceSparseVector = Record<string, float>
 
 export type InferenceTaskSettings = any
 
-export type InferenceTaskType = 'sparse_embedding' | 'text_embedding'
+export type InferenceTaskType = 'sparse_embedding' | 'text_embedding' | 'rerank' | 'completion'
 
 export interface InferenceTextEmbeddingByteResult {
   embedding: InferenceDenseByteVector
@@ -11561,6 +11568,7 @@ export interface InferenceInferenceRequest extends RequestBase {
   task_type?: InferenceTaskType
   inference_id: Id
   body?: {
+    query?: string
     input: string | string[]
     task_settings?: InferenceTaskSettings
   }
diff --git a/specification/inference/_types/Results.ts b/specification/inference/_types/Results.ts
index 1b1741a236..0d5da84fea 100644
--- a/specification/inference/_types/Results.ts
+++ b/specification/inference/_types/Results.ts
@@ -63,6 +63,17 @@ export class CompletionResult {
   result: string
 }
 
+/**
+ * The rerank result object representing a single ranked document
+ * id: the original index of the document in the request
+ * score: the score of the document relative to the query
+ * text: Optional, the text of the document, if requested
+ */
+export class RankedDocument {
+  id: string
+  score: string
+  text?: string
+}
 /**
  * InferenceResult is an aggregation of mutually exclusive variants
  * @variants container
@@ -72,4 +83,5 @@ export class InferenceResult {
   text_embedding?: Array<TextEmbeddingResult>
   sparse_embedding?: Array<SparseEmbeddingResult>
   completion?: Array<CompletionResult>
+  rerank?: Array<RankedDocument>
 }
diff --git a/specification/inference/_types/TaskType.ts b/specification/inference/_types/TaskType.ts
index c7c2e42a84..8bdc9f3727 100644
--- a/specification/inference/_types/TaskType.ts
+++ b/specification/inference/_types/TaskType.ts
@@ -22,5 +22,7 @@
  */
 export enum TaskType {
   sparse_embedding,
-  text_embedding
+  text_embedding,
+  rerank,
+  completion
 }
diff --git a/specification/inference/inference/InferenceRequest.ts b/specification/inference/inference/InferenceRequest.ts
index b98bb9f6e6..ee7dfe1f2d 100644
--- a/specification/inference/inference/InferenceRequest.ts
+++ b/specification/inference/inference/InferenceRequest.ts
@@ -40,6 +40,11 @@ export interface Request extends RequestBase {
     inference_id: Id
   }
   body: {
+    /**
+     * Query input, required for rerank task.
+     * Not required for other tasks.
+     */
+    query?: string
     /**
      * Text input to the model.
      * Either a string or an array of strings.