diff --git a/packages/google-cloud-dialogflow/protos/google/cloud/dialogflow/v2beta1/participant.proto b/packages/google-cloud-dialogflow/protos/google/cloud/dialogflow/v2beta1/participant.proto
index bdfaad14076..61cd3135272 100644
--- a/packages/google-cloud-dialogflow/protos/google/cloud/dialogflow/v2beta1/participant.proto
+++ b/packages/google-cloud-dialogflow/protos/google/cloud/dialogflow/v2beta1/participant.proto
@@ -1,4 +1,4 @@
-// Copyright 2025 Google LLC
+// Copyright 2026 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -1044,6 +1044,11 @@ message StreamingAnalyzeContentRequest {
   bool enable_partial_automated_agent_reply = 12
       [(google.api.field_behavior) = OPTIONAL];
 
+  // Optional. If multiple utterances are detected in the audio stream, process
+  // them individually instead of stitching them together to form a single
+  // utterance.
+  bool output_multiple_utterances = 18 [(google.api.field_behavior) = OPTIONAL];
+
   // if true, `StreamingAnalyzeContentResponse.debugging_info` will get
   // populated.
   bool enable_debugging_info = 19;
diff --git a/packages/google-cloud-dialogflow/protos/protos.d.ts b/packages/google-cloud-dialogflow/protos/protos.d.ts
index 4d4b88a415b..b0b42fa3bd3 100644
--- a/packages/google-cloud-dialogflow/protos/protos.d.ts
+++ b/packages/google-cloud-dialogflow/protos/protos.d.ts
@@ -60205,6 +60205,9 @@ export namespace google {
                     /** StreamingAnalyzeContentRequest enablePartialAutomatedAgentReply */
                     enablePartialAutomatedAgentReply?: (boolean|null);
 
+                    /** StreamingAnalyzeContentRequest outputMultipleUtterances */
+                    outputMultipleUtterances?: (boolean|null);
+
                     /** StreamingAnalyzeContentRequest enableDebuggingInfo */
                     enableDebuggingInfo?: (boolean|null);
                 }
@@ -60263,6 +60266,9 @@ export namespace google {
                     /** StreamingAnalyzeContentRequest enablePartialAutomatedAgentReply. */
                     public enablePartialAutomatedAgentReply: boolean;
 
+                    /** StreamingAnalyzeContentRequest outputMultipleUtterances. */
+                    public outputMultipleUtterances: boolean;
+
                     /** StreamingAnalyzeContentRequest enableDebuggingInfo. */
                     public enableDebuggingInfo: boolean;
 
diff --git a/packages/google-cloud-dialogflow/protos/protos.js b/packages/google-cloud-dialogflow/protos/protos.js
index 3df4cde0ec2..1d7ea5f2967 100644
--- a/packages/google-cloud-dialogflow/protos/protos.js
+++ b/packages/google-cloud-dialogflow/protos/protos.js
@@ -148009,6 +148009,7 @@
                          * @property {string|null} [cxCurrentPage] StreamingAnalyzeContentRequest cxCurrentPage
                          * @property {boolean|null} [enableExtendedStreaming] StreamingAnalyzeContentRequest enableExtendedStreaming
                          * @property {boolean|null} [enablePartialAutomatedAgentReply] StreamingAnalyzeContentRequest enablePartialAutomatedAgentReply
+                         * @property {boolean|null} [outputMultipleUtterances] StreamingAnalyzeContentRequest outputMultipleUtterances
                          * @property {boolean|null} [enableDebuggingInfo] StreamingAnalyzeContentRequest enableDebuggingInfo
                          */
     
@@ -148147,6 +148148,14 @@
                          */
                         StreamingAnalyzeContentRequest.prototype.enablePartialAutomatedAgentReply = false;
     
+                        /**
+                         * StreamingAnalyzeContentRequest outputMultipleUtterances.
+                         * @member {boolean} outputMultipleUtterances
+                         * @memberof google.cloud.dialogflow.v2beta1.StreamingAnalyzeContentRequest
+                         * @instance
+                         */
+                        StreamingAnalyzeContentRequest.prototype.outputMultipleUtterances = false;
+    
                         /**
                          * StreamingAnalyzeContentRequest enableDebuggingInfo.
                          * @member {boolean} enableDebuggingInfo
@@ -148232,6 +148241,8 @@
                                 writer.uint32(/* id 15, wireType 2 =*/122).string(message.cxCurrentPage);
                             if (message.inputIntent != null && Object.hasOwnProperty.call(message, "inputIntent"))
                                 writer.uint32(/* id 17, wireType 2 =*/138).string(message.inputIntent);
+                            if (message.outputMultipleUtterances != null && Object.hasOwnProperty.call(message, "outputMultipleUtterances"))
+                                writer.uint32(/* id 18, wireType 0 =*/144).bool(message.outputMultipleUtterances);
                             if (message.enableDebuggingInfo != null && Object.hasOwnProperty.call(message, "enableDebuggingInfo"))
                                 writer.uint32(/* id 19, wireType 0 =*/152).bool(message.enableDebuggingInfo);
                             if (message.inputEvent != null && Object.hasOwnProperty.call(message, "inputEvent"))
@@ -148332,6 +148343,10 @@
                                         message.enablePartialAutomatedAgentReply = reader.bool();
                                         break;
                                     }
+                                case 18: {
+                                        message.outputMultipleUtterances = reader.bool();
+                                        break;
+                                    }
                                 case 19: {
                                         message.enableDebuggingInfo = reader.bool();
                                         break;
@@ -148458,6 +148473,9 @@
                             if (message.enablePartialAutomatedAgentReply != null && message.hasOwnProperty("enablePartialAutomatedAgentReply"))
                                 if (typeof message.enablePartialAutomatedAgentReply !== "boolean")
                                     return "enablePartialAutomatedAgentReply: boolean expected";
+                            if (message.outputMultipleUtterances != null && message.hasOwnProperty("outputMultipleUtterances"))
+                                if (typeof message.outputMultipleUtterances !== "boolean")
+                                    return "outputMultipleUtterances: boolean expected";
                             if (message.enableDebuggingInfo != null && message.hasOwnProperty("enableDebuggingInfo"))
                                 if (typeof message.enableDebuggingInfo !== "boolean")
                                     return "enableDebuggingInfo: boolean expected";
@@ -148530,6 +148548,8 @@
                                 message.enableExtendedStreaming = Boolean(object.enableExtendedStreaming);
                             if (object.enablePartialAutomatedAgentReply != null)
                                 message.enablePartialAutomatedAgentReply = Boolean(object.enablePartialAutomatedAgentReply);
+                            if (object.outputMultipleUtterances != null)
+                                message.outputMultipleUtterances = Boolean(object.outputMultipleUtterances);
                             if (object.enableDebuggingInfo != null)
                                 message.enableDebuggingInfo = Boolean(object.enableDebuggingInfo);
                             return message;
@@ -148557,6 +148577,7 @@
                                 object.enablePartialAutomatedAgentReply = false;
                                 object.cxParameters = null;
                                 object.cxCurrentPage = "";
+                                object.outputMultipleUtterances = false;
                                 object.enableDebuggingInfo = false;
                             }
                             if (message.participant != null && message.hasOwnProperty("participant"))
@@ -148605,6 +148626,8 @@
                                 if (options.oneofs)
                                     object.input = "inputIntent";
                             }
+                            if (message.outputMultipleUtterances != null && message.hasOwnProperty("outputMultipleUtterances"))
+                                object.outputMultipleUtterances = message.outputMultipleUtterances;
                             if (message.enableDebuggingInfo != null && message.hasOwnProperty("enableDebuggingInfo"))
                                 object.enableDebuggingInfo = message.enableDebuggingInfo;
                             if (message.inputEvent != null && message.hasOwnProperty("inputEvent")) {
diff --git a/packages/google-cloud-dialogflow/protos/protos.json b/packages/google-cloud-dialogflow/protos/protos.json
index 79b0623091a..f6f1fbcf287 100644
--- a/packages/google-cloud-dialogflow/protos/protos.json
+++ b/packages/google-cloud-dialogflow/protos/protos.json
@@ -17799,6 +17799,13 @@
                             "(google.api.field_behavior)": "OPTIONAL"
                           }
                         },
+                        "outputMultipleUtterances": {
+                          "type": "bool",
+                          "id": 18,
+                          "options": {
+                            "(google.api.field_behavior)": "OPTIONAL"
+                          }
+                        },
                         "enableDebuggingInfo": {
                           "type": "bool",
                           "id": 19
diff --git a/packages/google-cloud-dialogflow/samples/generated/v2beta1/participants.streaming_analyze_content.js b/packages/google-cloud-dialogflow/samples/generated/v2beta1/participants.streaming_analyze_content.js
index 9d799f481f9..f15e3da831d 100644
--- a/packages/google-cloud-dialogflow/samples/generated/v2beta1/participants.streaming_analyze_content.js
+++ b/packages/google-cloud-dialogflow/samples/generated/v2beta1/participants.streaming_analyze_content.js
@@ -138,6 +138,12 @@ function main(participant) {
    *  return partial responses.
    */
   // const enablePartialAutomatedAgentReply = true
+  /**
+   *  Optional. If multiple utterances are detected in the audio stream, process
+   *  them individually instead of stitching them together to form a single
+   *  utterance.
+   */
+  // const outputMultipleUtterances = true
   /**
    *  if true, `StreamingAnalyzeContentResponse.debugging_info` will get
    *  populated.
diff --git a/packages/google-cloud-dialogflow/samples/generated/v2beta1/snippet_metadata_google.cloud.dialogflow.v2beta1.json b/packages/google-cloud-dialogflow/samples/generated/v2beta1/snippet_metadata_google.cloud.dialogflow.v2beta1.json
index 4ea4f32b26d..488d4fbe216 100644
--- a/packages/google-cloud-dialogflow/samples/generated/v2beta1/snippet_metadata_google.cloud.dialogflow.v2beta1.json
+++ b/packages/google-cloud-dialogflow/samples/generated/v2beta1/snippet_metadata_google.cloud.dialogflow.v2beta1.json
@@ -4206,7 +4206,7 @@
       "segments": [
         {
           "start": 25,
-          "end": 168,
+          "end": 174,
           "type": "FULL"
         }
       ],
@@ -4275,6 +4275,10 @@
             "name": "enable_partial_automated_agent_reply",
             "type": "TYPE_BOOL"
           },
+          {
+            "name": "output_multiple_utterances",
+            "type": "TYPE_BOOL"
+          },
           {
             "name": "enable_debugging_info",
             "type": "TYPE_BOOL"