Update app.py

app.py

@@ -37,7 +37,7 @@ def txt2story(img_text):
     print("Story...")
     chat_completion = client.chat.completions.create(
         messages=messages,
-        model="togethercomputer/llama-2-13b-chat")
+        model="togethercomputer/llama-2-70b-chat")
     
     print(chat_completion.choices[0].message.content)
     return chat_completion.choices[0].message.content