diff --git a/packages/cli/src/config/config.ts b/packages/cli/src/config/config.ts
index 5ad97ea48c..fab5517e2a 100755
--- a/packages/cli/src/config/config.ts
+++ b/packages/cli/src/config/config.ts
@@ -80,6 +80,7 @@ export interface CliArgs {
   model: string | undefined;
   sandbox: boolean | string | undefined;
   debug: boolean | undefined;
+  disableStreaming?: boolean;
   prompt: string | undefined;
   promptInteractive: string | undefined;
   worktree?: string;
@@ -466,6 +467,10 @@ export async function parseArguments(
           type: 'boolean',
           description: 'Enable screen reader mode for accessibility.',
         })
+        .option('disable-streaming', {
+          type: 'boolean',
+          description: 'Disable streaming responses from the model',
+        })
         .option('output-format', {
           alias: 'o',
           type: 'string',
@@ -973,6 +978,7 @@ export async function loadCliConfig(
   return new Config({
     acpMode: isAcpMode,
     clientName,
+    disableStreaming: argv.disableStreaming,
     sessionId,
     clientVersion: await getVersion(),
     embeddingModel: DEFAULT_GEMINI_EMBEDDING_MODEL,
diff --git a/packages/cli/src/services/UserSimulator.ts b/packages/cli/src/services/UserSimulator.ts
index 204f15b1bf..96a7d49324 100644
--- a/packages/cli/src/services/UserSimulator.ts
+++ b/packages/cli/src/services/UserSimulator.ts
@@ -57,7 +57,7 @@ export class UserSimulator {
     }
     this.interactionsFile = `interactions_${Date.now()}.txt`;
     this.isRunning = true;
-    this.timer = setInterval(() => this.tick(), 3000);
+    this.timer = setInterval(() => this.tick(), 1000);
   }
 
   stop() {
diff --git a/packages/core/src/config/config.ts b/packages/core/src/config/config.ts
index d9e1b61a6f..c3d6d9af3a 100644
--- a/packages/core/src/config/config.ts
+++ b/packages/core/src/config/config.ts
@@ -639,6 +639,7 @@ export interface ConfigParameters {
   bugCommand?: BugCommandSettings;
   model: string;
   disableLoopDetection?: boolean;
+  disableStreaming?: boolean;
   maxSessionTurns?: number;
   acpMode?: boolean;
   listSessions?: boolean;
@@ -986,6 +987,7 @@ export class Config implements McpContext, AgentLoopContext {
   private approvedPlanPath: string | undefined;
   private readonly simulateUser: boolean;
   private readonly knowledgeSource?: string;
+  private readonly disableStreaming: boolean;
 
   constructor(params: ConfigParameters) {
     this._sessionId = params.sessionId;
@@ -1316,6 +1318,7 @@ export class Config implements McpContext, AgentLoopContext {
     this.enableConseca = params.enableConseca ?? false;
     this.simulateUser = params.simulateUser ?? false;
     this.knowledgeSource = params.knowledgeSource;
+    this.disableStreaming = params.disableStreaming ?? false;
 
     // Initialize Safety Infrastructure
     const contextBuilder = new ContextBuilder(this);
@@ -3033,6 +3036,10 @@ export class Config implements McpContext, AgentLoopContext {
     return this.simulateUser;
   }
 
+  getDisableStreaming(): boolean {
+    return this.disableStreaming;
+  }
+
   getKnowledgeSource(): string | undefined {
     return this.knowledgeSource;
   }
diff --git a/packages/core/src/core/geminiChat.ts b/packages/core/src/core/geminiChat.ts
index 414484d158..71d24820b8 100644
--- a/packages/core/src/core/geminiChat.ts
+++ b/packages/core/src/core/geminiChat.ts
@@ -850,6 +850,23 @@ export class GeminiChat {
 
       const finalContents = stripToolCallIdPrefixes(contentsToUse);
 
+      if (this.context.config.getDisableStreaming()) {
+        const response = await this.context.config
+          .getContentGenerator()
+          .generateContent(
+            {
+              model: modelToUse,
+              contents: finalContents,
+              config,
+            },
+            prompt_id,
+            role,
+          );
+        return (async function* () {
+          yield response;
+        })();
+      }
+
       return this.context.config.getContentGenerator().generateContentStream(
         {
           model: modelToUse,