Update app.py

app.py

@@ -59,7 +59,7 @@ def user(message, chat_history):
 # Bot response handler
 def bot(chat_history, max_tokens, temperature, top_p):
     # Insert model name bubble and placeholder for output
-    chat_history.append([None, f"**Model:** {current_model_name}"])
+    chat_history.append([None, f"**{current_model_name}**"])
     chat_history.append([None, ""])
     # Render model name immediately
     yield chat_history