Fix model parameters

main.py

@@ -62,10 +62,9 @@ async def stream(item: Validation):
     def stream_json():
         for text in model(
             prompt,
-            temperature=item.temperature,
-            top_p=item.top_p,
-            presence_penalty=item.presence_penalty,
-            frequency_penalty=item.frequency_penalty,
+            temperature=item.temperature, # Default to 0.8
+            top_p=item.top_p, # Default to 0.95
+            repetition_penalty=item.frequency_penalty, # Default to 1.1
             stream=True
             ):
             yield json.dumps({