diff --git a/swarms/swarms.py b/swarms/swarms.py
index 15da612a..753b8f40 100644
--- a/swarms/swarms.py
+++ b/swarms/swarms.py
@@ -70,7 +70,7 @@ class HierarchicalSwarm:
 
 
 
-    def initialize_llm(self, llm_class):
+    def initialize_llm(self, llm_class, temperature=0.5):
         """
         Init LLM 
 
@@ -80,10 +80,14 @@ class HierarchicalSwarm:
         """
         try: 
             # Initialize language model
-            self.llm = llm_class(openai_api_key=self.openai_api_key, temperature=self.temperature)
+            if self.llm_class == OpenAI:
+                return llm_class(openai_api_key=self.openai_api_key, temperature=self.temperature)
+            else:
+                return self.llm_class(model_id="gpt-2", temperature=self.temperature)
         except Exception as e:
             logging.error(f"Failed to initialize language model: {e}")
 
+
     def initialize_tools(self, llm_class, extra_tools=None):
         """
         Init tools