Update api_usage.py

api_usage.py

@@ -84,7 +84,7 @@ def check_gpt4_32k_availability(available_models):
 def check_key_availability():
     try:
         avai_models = openai.Model.list()
-        return [model["root"] for model in avai_models["data"] if model["root"] in GPT_TYPES]
+        return [model["id"] for model in avai_models["data"] if model["id"] in GPT_TYPES]
     except:
         return False