diff --git a/app/api/google/[...path]/route.ts b/app/api/google/[...path]/route.ts
index 869bd507638..ebd19289129 100644
--- a/app/api/google/[...path]/route.ts
+++ b/app/api/google/[...path]/route.ts
@@ -101,19 +101,14 @@ export const POST = handle;
 
 export const runtime = "edge";
 export const preferredRegion = [
-  "arn1",
   "bom1",
-  "cdg1",
   "cle1",
   "cpt1",
-  "dub1",
-  "fra1",
   "gru1",
   "hnd1",
   "iad1",
   "icn1",
   "kix1",
-  "lhr1",
   "pdx1",
   "sfo1",
   "sin1",
diff --git a/app/constant.ts b/app/constant.ts
index af64c92dc9c..8f251814088 100644
--- a/app/constant.ts
+++ b/app/constant.ts
@@ -107,6 +107,7 @@ export const SUMMARIZE_MODEL = "gpt-3.5-turbo";
 
 export const KnowledgeCutOffDate: Record<string, string> = {
   default: "2021-09",
+  "gpt-4-turbo-preview": "2023-04",
   "gpt-4-1106-preview": "2023-04",
   "gpt-4-0125-preview": "2023-04",
   "gpt-4-vision-preview": "2023-04",
@@ -167,6 +168,15 @@ export const DEFAULT_MODELS = [
       providerType: "openai",
     },
   },
+  {
+    name: "gpt-4-turbo-preview",
+    available: true,
+    provider: {
+      id: "openai",
+      providerName: "OpenAI",
+      providerType: "openai",
+    },
+  },
   {
     name: "gpt-4-1106-preview",
     available: true,