Update app.py

app.py

@@ -270,7 +270,7 @@ def merge_pdfs(paths, output_path):
         writer.write(f) 
     return output_path 
 
-def gemini_generate_content(prompt_text, file_upload_obj=None, image_obj=None, model_name="gemini-2.0-flash-exp"): 
+def gemini_generate_content(prompt_text, file_upload_obj=None, image_obj=None, model_name="gemini-2.5-pro"): 
     """ 
     Send prompt_text and optionally an uploaded file (or an image object/list) to the model using NEW SDK.
     Returns textual response and prints progress. 
@@ -308,10 +308,10 @@ def gemini_generate_content(prompt_text, file_upload_obj=None, image_obj=None, m
     except Exception as e:
         print(f"❌ Generation failed: {e}")
         # Try fallback model
-        print("⚡ Trying fallback model: gemini-1.5-flash")
+        print("⚡ Trying fallback model: gemini-2.5-flash")
         try:
             response = client.models.generate_content(
-                model="gemini-1.5-flash",
+                model="gemini-2.5-flash",
                 contents=contents
             )
             raw_text = response.text