diff --git a/apps/api-service/src/services/ImageGenService.ts b/apps/api-service/src/services/ImageGenService.ts
index fc73ed8..dead1ac 100644
--- a/apps/api-service/src/services/ImageGenService.ts
+++ b/apps/api-service/src/services/ImageGenService.ts
@@ -34,7 +34,7 @@ export class ImageGenService {
     // Use default values if not provided
     const finalOrgSlug = orgSlug || process.env['DEFAULT_ORG_SLUG'] || 'default';
     const finalProjectSlug = projectSlug || process.env['DEFAULT_PROJECT_SLUG'] || 'main';
-    const finalAspectRatio = aspectRatio || '1:1'; // Default to square
+    const finalAspectRatio = aspectRatio || '16:9'; // Default to widescreen
 
     // Step 1: Generate image from Gemini AI
     let generatedData: GeneratedImageData;
diff --git a/apps/api-service/src/utils/constants/limits.ts b/apps/api-service/src/utils/constants/limits.ts
index 915298e..7f05451 100644
--- a/apps/api-service/src/utils/constants/limits.ts
+++ b/apps/api-service/src/utils/constants/limits.ts
@@ -39,7 +39,7 @@ export const IMAGE_LIMITS = {
 export const GENERATION_LIMITS = {
   MAX_PROMPT_LENGTH: 5000,
   MAX_RETRY_COUNT: 3,
-  DEFAULT_ASPECT_RATIO: '1:1',
+  DEFAULT_ASPECT_RATIO: '16:9',
   ALLOWED_ASPECT_RATIOS: ['1:1', '16:9', '9:16', '3:2', '2:3', '4:3', '3:4'] as const,
 } as const;