Update app.py

changed model to 3.5

app.py

@@ -161,10 +161,10 @@ class QueueCallback(BaseCallbackHandler):
 
 class DDSAgent:
 
-  def __init__(self, name, prompt_template='', model_name='gpt-4', verbose=False, temp=0.2):
+  def __init__(self, name, prompt_template='', model_name='gpt-3.5-turbo-16k', verbose=False, temp=0.2):
     self.verbose = verbose
     self.llm = ChatOpenAI(
-      model_name="gpt-4",
+      model_name="gpt-3.5-turbo-16k",
       temperature=temp
       )
 
@@ -200,7 +200,7 @@ class DDSAgent:
     job_done = object()
 
     llm = ChatOpenAI(
-        model_name='gpt-4',
+        model_name='gpt-3.5-turbo-16k',
         callbacks=[QueueCallback(q),
                   PromptLayerCallbackHandler(pl_tags=["sudo_lang"])],
         streaming=True,