Update multiagents.py

multiagents.py

@@ -28,15 +28,15 @@ vllm_model = OpenAIServerModel(
 )
 
 openai_41nano_model = OpenAIServerModel(
-    model_id="gpt-4.1-nano",
-    api_base="https://api.openai.com/v1",
-    api_key=os.environ["OPENAI_API_KEY"],
+    model_id="mistralai/Mixtral-8x7B-Instruct-v0.1",
+    api_base="https://api.together.xyz/v1",
+    api_key=os.environ["TOGETHER_API_KEY"],
 )
 
 openai_41mini_model = OpenAIServerModel(
-    model_id="gpt-3.5-turbo",
-    api_base="https://api.openai.com/v1",
-    api_key=os.environ["OPENAI_API_KEY"],
+    model_id="mistralai/Mixtral-8x7B-Instruct-v0.1",
+    api_base="https://api.together.xyz/v1",
+    api_key=os.environ["TOGETHER_API_KEY"],
 )