diff --git a/ui/litellm-dashboard/src/autorouter_presets.json b/ui/litellm-dashboard/src/autorouter_presets.json
index ec9cfe1eac4..2603d7f5324 100644
--- a/ui/litellm-dashboard/src/autorouter_presets.json
+++ b/ui/litellm-dashboard/src/autorouter_presets.json
@@ -10,7 +10,8 @@
         "REASONING": ["claude-opus-5"]
       },
       "classifier_type": "heuristic",
-      "escalation_keywords": ["LITELLM ESCALATE"]
+      "escalation_keywords": ["LITELLM ESCALATE"],
+      "session_affinity": false
     }
   },
   "openai_family": {
@@ -24,7 +25,8 @@
         "REASONING": ["o3"]
       },
       "classifier_type": "heuristic",
-      "escalation_keywords": ["LITELLM ESCALATE"]
+      "escalation_keywords": ["LITELLM ESCALATE"],
+      "session_affinity": false
     }
   }
 }
diff --git a/ui/litellm-dashboard/src/components/add_model/add_auto_router_tab.test.tsx b/ui/litellm-dashboard/src/components/add_model/add_auto_router_tab.test.tsx
index 5ea9e9de3fd..efb46736ea5 100644
--- a/ui/litellm-dashboard/src/components/add_model/add_auto_router_tab.test.tsx
+++ b/ui/litellm-dashboard/src/components/add_model/add_auto_router_tab.test.tsx
@@ -387,6 +387,8 @@ describe("AddAutoRouterTab", () => {
 
     renderWithProviders(<Harness />);
 
+    openTemplateDropdown();
+    fireEvent.click(optionByLabel("Custom Configuration")!);
     await user.type(screen.getByPlaceholderText(/smart_router/i), "affinity-router");
     await user.click(screen.getByText("Advanced: Session Affinity"));
     expect(await screen.findByRole("switch", { name: "Pin a session to its first model" })).not.toBeChecked();
@@ -405,6 +407,8 @@ describe("AddAutoRouterTab", () => {
 
     renderWithProviders(<Harness />);
 
+    openTemplateDropdown();
+    fireEvent.click(optionByLabel("Custom Configuration")!);
     await user.type(screen.getByPlaceholderText(/smart_router/i), "affinity-router");
     await user.click(screen.getByText("Advanced: Session Affinity"));
     await user.click(await screen.findByRole("switch", { name: "Pin a session to its first model" }));