diff --git a/app/api/admin/ruxa-image-models/route.ts b/app/api/admin/ruxa-image-models/route.ts
index 4a3040163..ae8f22002 100644
--- a/app/api/admin/ruxa-image-models/route.ts
+++ b/app/api/admin/ruxa-image-models/route.ts
@@ -59,6 +59,7 @@ export async function POST(request: Request) {
 
     const addedModels: AiModel[] = [];
     const errors: { modelId: string; error: string }[] = [];
+    const updatedModels: AiModel[] = [];
 
     for (const preset of presetsToAdd) {
       try {
@@ -70,7 +71,31 @@ export async function POST(request: Request) {
         });
 
         if (existing) {
-          errors.push({ modelId: preset.modelId, error: "Model already exists" });
+          const [updated] = await db
+            .update(aiModel)
+            .set({
+              displayName: preset.displayName,
+              description: preset.description,
+              supportsVision: preset.supportsVision,
+              supportsImageGen: preset.supportsImageGen,
+              sortOrder: preset.sortOrder,
+              capabilities: preset.capabilities || null,
+              defaultParams: preset.defaultParams || null,
+              imageGenConfig: preset.imageGenConfig || null,
+            })
+            .where(
+              and(
+                eq(aiModel.providerId, providerId),
+                eq(aiModel.modelId, preset.modelId)
+              )
+            )
+            .returning();
+
+          if (updated) {
+            updatedModels.push(updated);
+          } else {
+            errors.push({ modelId: preset.modelId, error: "Model exists but failed to sync" });
+          }
           continue;
         }
 
@@ -111,7 +136,9 @@ export async function POST(request: Request) {
     return NextResponse.json({
       success: true,
       addedCount: addedModels.length,
+      updatedCount: updatedModels.length,
       addedModels,
+      updatedModels,
       errors: errors.length > 0 ? errors : undefined,
       counts: {
         requested: presetsToAdd.length,
@@ -126,4 +153,3 @@ export async function POST(request: Request) {
     );
   }
 }
-
diff --git a/lib/ai/ruxa-image-models.ts b/lib/ai/ruxa-image-models.ts
index e5c5a1b26..0ed5bfe78 100644
--- a/lib/ai/ruxa-image-models.ts
+++ b/lib/ai/ruxa-image-models.ts
@@ -12,6 +12,7 @@ export interface RuxaImageModelPreset {
 
 export const RUXA_NANO_BANANA_2_MODEL_ID = "google/nano-banana-2";
 export const RUXA_NANO_BANANA_PRO_MODEL_ID = "google/nano-banana-pro";
+export const RUXA_NANO_BANANA_2_RUNTIME_MODEL_ID = "gemini-3.1-flash-image-preview";
 
 const RUXA_IMAGE_CONFIG = {
   maxImages: 1,
@@ -38,7 +39,7 @@ export const RUXA_IMAGE_MODEL_PRESETS: RuxaImageModelPreset[] = [
     supportsImageGen: true,
     defaultParams: {
       provider: "ruxa",
-      endpoint: "nano-banana-2",
+      endpoint: RUXA_NANO_BANANA_2_RUNTIME_MODEL_ID,
       imageSize: "2K",
       aspectRatio: "1:1",
     },