diff --git a/web/src/pages/user-setting/setting-model/index.tsx b/web/src/pages/user-setting/setting-model/index.tsx
index 476fe5985b..dcf3d203a2 100644
--- a/web/src/pages/user-setting/setting-model/index.tsx
+++ b/web/src/pages/user-setting/setting-model/index.tsx
@@ -56,6 +56,10 @@ const SettingModelV2: FC = () => {
   // cancelled independently; saving removes the draft from this list and
   // triggers a refetch that surfaces the newly-saved instance above.
   const [draftIds, setDraftIds] = useState<string[]>([]);
+
+  const [newlySavedInstanceName, setNewlySavedInstanceName] = useState<
+    string | null
+  >(null);
   // Monotonic counter so each draft card has a stable, unique React key.
   const draftIdCounterRef = useRef(0);
   // Tracks whether the user explicitly cancelled the auto-shown draft
@@ -90,6 +94,7 @@ const SettingModelV2: FC = () => {
   useEffect(() => {
     cancelledRef.current = false;
     setDraftIds([]);
+    setNewlySavedInstanceName(null);
   }, [selection]);
 
   // If the user switches to a provider with no existing instances and
@@ -135,6 +140,7 @@ const SettingModelV2: FC = () => {
         // and `draftIds` are empty and would otherwise re-trigger
         // `addDraft()`).
         cancelledRef.current = true;
+        setNewlySavedInstanceName(values.instance_name);
         removeDraft(id);
         queryClient.invalidateQueries({
           queryKey: LlmKeys.providerInstances(providerQueryName),
@@ -154,10 +160,12 @@ const SettingModelV2: FC = () => {
   // "Save name" button inside the draft card). Remove the draft and
   // pin the auto-show guard so a new placeholder draft is not
   // auto-injected during the brief window between draft removal and
-  // the providerInstances refetch landing.
+  // the providerInstances refetch landing. Remember the saved name so
+  // the persisted card mounts expanded.
   const handleNameSaved = useCallback(
-    (id: string) => {
+    (id: string, instanceName: string) => {
       cancelledRef.current = true;
+      setNewlySavedInstanceName(instanceName);
       removeDraft(id);
     },
     [removeDraft],
@@ -207,7 +215,10 @@ const SettingModelV2: FC = () => {
                   key={instance.instance_name}
                   providerName={selection as string}
                   instance={instance}
-                  defaultOpen={index === 0}
+                  defaultOpen={
+                    index === 0 ||
+                    instance.instance_name === newlySavedInstanceName
+                  }
                 />
               ))}
               {draftIds.map((id) => (
@@ -217,7 +228,9 @@ const SettingModelV2: FC = () => {
                   instance={draftInstance}
                   isDraft
                   onDelete={() => handleDraftCancel(id)}
-                  onNameSaved={() => handleNameSaved(id)}
+                  onNameSaved={(instanceName) =>
+                    handleNameSaved(id, instanceName)
+                  }
                   onSaved={(values) => handleDraftSave(id, values)}
                 />
               ))}
diff --git a/web/src/pages/user-setting/setting-model/instance-card/bedrock-instance-card.tsx b/web/src/pages/user-setting/setting-model/instance-card/bedrock-instance-card.tsx
index 46f48e89a9..a711628c89 100644
--- a/web/src/pages/user-setting/setting-model/instance-card/bedrock-instance-card.tsx
+++ b/web/src/pages/user-setting/setting-model/instance-card/bedrock-instance-card.tsx
@@ -77,7 +77,7 @@ interface BedrockInstanceCardProps {
   instance: IProviderInstance;
   isDraft?: boolean;
   onSaved?: (values: Record<string, any>) => void | Promise<void>;
-  onNameSaved?: () => void;
+  onNameSaved?: (instanceName: string) => void;
   onDelete?: () => void;
   /**
    * When true, this card starts expanded and fetches its instance
@@ -324,7 +324,7 @@ export function BedrockInstanceCard({
       instance_name: trimmed,
     } as any);
     if (ret?.code === 0) {
-      onNameSaved?.();
+      onNameSaved?.(trimmed);
     }
   }, [draftName, addProviderInstance, providerName, onNameSaved]);
 
diff --git a/web/src/pages/user-setting/setting-model/instance-card/hooks.tsx b/web/src/pages/user-setting/setting-model/instance-card/hooks.tsx
index b39576a17a..e9265f8e57 100644
--- a/web/src/pages/user-setting/setting-model/instance-card/hooks.tsx
+++ b/web/src/pages/user-setting/setting-model/instance-card/hooks.tsx
@@ -336,7 +336,7 @@ export function useVerifyProvider(
 export function useSaveInstanceName(
   providerName: string,
   draftName: string,
-  onNameSaved?: () => void,
+  onNameSaved?: (instanceName: string) => void,
 ) {
   const { addProviderInstance } = useAddProviderInstance();
   return useCallback(async () => {
@@ -347,7 +347,7 @@ export function useSaveInstanceName(
       instance_name: trimmed,
     } as any);
     if (ret?.code === 0) {
-      onNameSaved?.();
+      onNameSaved?.(trimmed);
     }
   }, [draftName, addProviderInstance, providerName, onNameSaved]);
 }
diff --git a/web/src/pages/user-setting/setting-model/instance-card/interface.ts b/web/src/pages/user-setting/setting-model/instance-card/interface.ts
index c8e2de584e..f40b942259 100644
--- a/web/src/pages/user-setting/setting-model/instance-card/interface.ts
+++ b/web/src/pages/user-setting/setting-model/instance-card/interface.ts
@@ -39,9 +39,11 @@ export interface ProviderInstanceCardProps {
    * Called after a draft instance's *name* has been persisted via
    * `addProviderInstance` (with just `instance_name`). The parent should
    * remove this draft from its visible list; the freshly invalidated
-   * `providerInstances` query will surface the persisted card.
+   * `providerInstances` query will surface the persisted card. The
+   * saved `instanceName` is passed so the parent can keep the newly
+   * persisted card expanded.
    */
-  onNameSaved?: () => void;
+  onNameSaved?: (instanceName: string) => void;
   /**
    * Called when the user deletes a draft instance.
    * For drafts this is equivalent to onCancel; for saved instances
diff --git a/web/src/pages/user-setting/setting-model/instance-card/somark-instance-card.tsx b/web/src/pages/user-setting/setting-model/instance-card/somark-instance-card.tsx
index 84f56c59f6..aa3758b792 100644
--- a/web/src/pages/user-setting/setting-model/instance-card/somark-instance-card.tsx
+++ b/web/src/pages/user-setting/setting-model/instance-card/somark-instance-card.tsx
@@ -104,7 +104,7 @@ interface SoMarkInstanceCardProps {
   instance: IProviderInstance;
   isDraft?: boolean;
   onSaved?: (values: Record<string, any>) => void | Promise<void>;
-  onNameSaved?: () => void;
+  onNameSaved?: (instanceName: string) => void;
   onDelete?: () => void;
   /**
    * When true, this card starts expanded and fetches its instance
@@ -355,7 +355,7 @@ export function SoMarkInstanceCard({
       instance_name: trimmed,
     } as any);
     if (ret?.code === 0) {
-      onNameSaved?.();
+      onNameSaved?.(trimmed);
     }
   }, [draftName, addProviderInstance, providerName, onNameSaved]);