Update excel_chat.py

excel_chat.py

@@ -71,7 +71,9 @@ def ask_llm(query, user_input, client_index, user, keys):
         model_map = {
                 "Perplexity Mixtral": "mixtral-8x7b-instruct",
                 "Perplexity Llama3 70b": "llama-3-70b-instruct",
-                "Perplexity Llama3 8b": "llama-3-8b-instruct"
+                "Perplexity Llama3 8b": "llama-3-8b-instruct",
+                "Perplexity Llama3 Sonar Small": "llama-3-sonar-small-32k-chat"
+                "Perplexity Llama3 Sonar Large": "llama-3-sonar-large-32k-chat"
             }
         response = client.chat.completions.create(
             model=model_map[client_index],