Update app.py

app.py

@@ -638,10 +638,16 @@ Format your response with clear headers and bullet points."""
 
         # Call OpenAI API
         response = openai.chat.completions.create(
-            model="o1-preview",  # Using o1-preview now
+            model="o1-preview",
             messages=[
-                {"role": "system", "content": "You are an expert mathematics professor grading student solutions."},
-                {"role": "user", "content": verification_prompt}
+                {
+                    "role": "assistant",
+                    "content": "I am an expert mathematics professor who grades student solutions carefully and accurately."
+                },
+                {
+                    "role": "user",
+                    "content": verification_prompt
+                }
             ],
             temperature=0.3
         )