diff --git a/frontend/src/interfaces/llm-provider.ts b/frontend/src/interfaces/llm-provider.ts
index 877c6be0..c0b1c2d1 100644
--- a/frontend/src/interfaces/llm-provider.ts
+++ b/frontend/src/interfaces/llm-provider.ts
@@ -3,15 +3,10 @@ export interface LlmProvider {
   name: string;
   type: string;
   protocol?: string;
-  modelMapping: ModelMapping;
   tokens: string[];
   tokenFailoverConfig?: TokeFailoverConfig;
 }
 
-export interface ModelMapping {
-  [propName: string]: string;
-}
-
 export interface TokeFailoverConfig {
   enabled?: boolean;
   failureThreshold?: number;
@@ -21,11 +16,6 @@ export interface TokeFailoverConfig {
   healthCheckModel?: string;
 }
 
-export enum LlmProviderType {
-  OPENAI = 'openai',
-  QWEN = 'qwen',
-}
-
 export enum LlmProviderProtocol {
   OPENAI_V1 = 'openai/v1',
 }
diff --git a/frontend/src/pages/ai/components/RouteForm/index.tsx b/frontend/src/pages/ai/components/RouteForm/index.tsx
index d764b1b0..fe84aee6 100644
--- a/frontend/src/pages/ai/components/RouteForm/index.tsx
+++ b/frontend/src/pages/ai/components/RouteForm/index.tsx
@@ -199,7 +199,7 @@ const AiRouteForm: React.FC = forwardRef((props: { value: any }, ref) => {
           provider: fallbackConfig_upstreams,
           modelMapping: {},
         };
-        _upstreams["modelMapping"][fallbackConfig_modelNames] = fallbackConfig_upstreams;
+        _upstreams["modelMapping"]["*"] = fallbackConfig_modelNames;
         payload['fallbackConfig']['upstreams'] = [_upstreams];
         payload['fallbackConfig']['strategy'] = "SEQ";
       }