diff --git a/content-gen/infra/main.bicep b/content-gen/infra/main.bicep
index b350f59ec..1425346e7 100644
--- a/content-gen/infra/main.bicep
+++ b/content-gen/infra/main.bicep
@@ -38,6 +38,20 @@ param secondaryLocation string = 'uksouth'
 
 // NOTE: Metadata must be compile-time constants. Update usageName manually if you change model parameters.
 // Format: 'OpenAI.<DeploymentType>.<ModelName>,<Capacity>'
+// Allowed regions: Union of GPT-5.1, gpt-image-1, and gpt-image-1.5 GlobalStandard availability
+@allowed([
+  'australiaeast'
+  'canadaeast'
+  'eastus2'
+  'japaneast'
+  'koreacentral'
+  'polandcentral'
+  'swedencentral'
+  'switzerlandnorth'
+  'uaenorth'
+  'uksouth'
+  'westus3'
+])
 @metadata({
   azd: {
     type: 'location'
diff --git a/content-gen/infra/main.json b/content-gen/infra/main.json
index 638e4188f..2f414d0aa 100644
--- a/content-gen/infra/main.json
+++ b/content-gen/infra/main.json
@@ -6,7 +6,7 @@
     "_generator": {
       "name": "bicep",
       "version": "0.40.2.10011",
-      "templateHash": "8403017938611050215"
+      "templateHash": "14662930066054172114"
     },
     "name": "Intelligent Content Generation Accelerator",
     "description": "Solution Accelerator for multimodal marketing content generation using Microsoft Agent Framework.\n"
@@ -62,6 +62,19 @@
     },
     "azureAiServiceLocation": {
       "type": "string",
+      "allowedValues": [
+        "australiaeast",
+        "canadaeast",
+        "eastus2",
+        "japaneast",
+        "koreacentral",
+        "polandcentral",
+        "swedencentral",
+        "switzerlandnorth",
+        "uaenorth",
+        "uksouth",
+        "westus3"
+      ],
       "metadata": {
         "azd": {
           "type": "location",
@@ -14019,8 +14032,8 @@
       },
       "dependsOn": [
         "aiFoundryAiServices",
-        "[format('avmPrivateDnsZones[{0}]', variables('dnsZoneIndex').openAI)]",
         "[format('avmPrivateDnsZones[{0}]', variables('dnsZoneIndex').cognitiveServices)]",
+        "[format('avmPrivateDnsZones[{0}]', variables('dnsZoneIndex').openAI)]",
         "virtualNetwork"
       ]
     },