From 4c5ab80b7e00b0a00795007d08f315907b711cb1 Mon Sep 17 00:00:00 2001
From: Abhi <43648792+abhipatel12@users.noreply.github.com>
Date: Tue, 30 Sep 2025 23:10:10 -0400
Subject: [PATCH] fix(routing): Disable model router by default (#10283)

---
 packages/cli/src/config/config.test.ts         | 4 ++--
 packages/cli/src/config/config.ts              | 2 +-
 packages/cli/src/config/settingsSchema.test.ts | 2 +-
 packages/cli/src/config/settingsSchema.ts      | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/packages/cli/src/config/config.test.ts b/packages/cli/src/config/config.test.ts
index 22e07cc5dd..8a3ae156fe 100644
--- a/packages/cli/src/config/config.test.ts
+++ b/packages/cli/src/config/config.test.ts
@@ -2061,7 +2061,7 @@ describe('loadCliConfig model selection', () => {
       argv,
     );
 
-    expect(config.getModel()).toBe(DEFAULT_GEMINI_MODEL_AUTO);
+    expect(config.getModel()).toBe(DEFAULT_GEMINI_MODEL);
   });
 
   it('always prefers model from argvs', async () => {
@@ -2497,7 +2497,7 @@ describe('loadCliConfig useRipgrep', () => {
         'test-session',
         argv,
       );
-      expect(config.getUseModelRouter()).toBe(true);
+      expect(config.getUseModelRouter()).toBe(false);
     });
 
     it('should be true when useModelRouter is set to true in settings', async () => {
diff --git a/packages/cli/src/config/config.ts b/packages/cli/src/config/config.ts
index b3a51976a8..1756774e1b 100755
--- a/packages/cli/src/config/config.ts
+++ b/packages/cli/src/config/config.ts
@@ -621,7 +621,7 @@ export async function loadCliConfig(
     );
   }
 
-  const useModelRouter = settings.experimental?.useModelRouter ?? true;
+  const useModelRouter = settings.experimental?.useModelRouter ?? false;
   const defaultModel = useModelRouter
     ? DEFAULT_GEMINI_MODEL_AUTO
     : DEFAULT_GEMINI_MODEL;
diff --git a/packages/cli/src/config/settingsSchema.test.ts b/packages/cli/src/config/settingsSchema.test.ts
index 67757637ec..4088151049 100644
--- a/packages/cli/src/config/settingsSchema.test.ts
+++ b/packages/cli/src/config/settingsSchema.test.ts
@@ -328,7 +328,7 @@ describe('SettingsSchema', () => {
       ).toBe('Experimental');
       expect(
         getSettingsSchema().experimental.properties.useModelRouter.default,
-      ).toBe(true);
+      ).toBe(false);
     });
   });
 });
diff --git a/packages/cli/src/config/settingsSchema.ts b/packages/cli/src/config/settingsSchema.ts
index dd4deeb7fd..ef3dc6c7c3 100644
--- a/packages/cli/src/config/settingsSchema.ts
+++ b/packages/cli/src/config/settingsSchema.ts
@@ -996,7 +996,7 @@ const SETTINGS_SCHEMA = {
         label: 'Use Model Router',
         category: 'Experimental',
         requiresRestart: true,
-        default: true,
+        default: false,
         description:
           'Enable model routing to route requests to the best model based on complexity.',
         showInDialog: true,