Update app.py

app.py

@@ -104,7 +104,7 @@ def setup_multiple_chains():
         openai_api_key=OPENAI_API_KEY,
         #max_tokens=512, 
         top_p=0.9,  
-        repetition_penalty=1.03,
+        frequency_penalty=0.5,
         presence_penalty=0.3   
     )