diff --git a/reginaldCog/openai_completion.py b/reginaldCog/openai_completion.py
new file mode 100644
index 0000000..b19f720
--- /dev/null
+++ b/reginaldCog/openai_completion.py
@@ -0,0 +1,81 @@
+import random
+import json
+import openai
+from openai import OpenAIError
+from .weather import time_now, get_current_weather, get_weather_forecast
+from .tools_description import TOOLS
+
+CALLABLE_FUNCTIONS = {
+    # Dictionary with functions to call.
+    # You can use globals()[func_name](**args) instead, but that's too implicit.
+    'time_now': time_now,
+    'get_current_weather': get_current_weather,
+    'get_weather_forecast': get_weather_forecast,
+}
+
+
+class Completion:
+    def __init__(self, model: str, api_key: str):
+        self.__model = model
+        self.__api_key = api_key
+        self.__messages = []
+
+    async def create_completion(self, messages: list):
+        self.__messages = messages
+        model = self.__model
+        try:
+            client = openai.AsyncClient(api_key=self.__api_key)
+            completion_kwargs = {
+                "model": model,
+                "messages": messages,
+                "max_tokens": 4096,
+                "temperature": 0.7,
+                "presence_penalty": 0.5,
+                "frequency_penalty": 0.5,
+                "tools": TOOLS,
+                "tool_choice": "auto",
+            }
+            response = await client.chat.completions.create(**completion_kwargs)
+            response_content = response.choices[0].message.content
+            tool_calls = response.choices[0].message.tool_calls
+            self.append_message(role="assistant", content=response_content, tool_calls=tool_calls)
+            if tool_calls:
+                for i_call in tool_calls:
+                    func_name = i_call.function.name
+                    func_args = json.loads(i_call.function.arguments)
+                    tool_call_id = i_call.id
+                    self.function_manager(func_name, func_args, tool_call_id)
+                return self.create_completion(messages=self.__messages)
+            return response_content
+        except OpenAIError as e:
+            return self.get_error_message(error_message=str(e), error_type="OpenAIError")
+
+    def append_message(
+            self,
+            role: str,
+            content: str,
+            tool_calls: list = None,
+            tool_call_id: str = None,
+    ):
+        self.__messages.append({
+            "role": role,
+            "content": content,
+            "tool_calls": tool_calls,
+            "tool_call_id": tool_call_id,
+        })
+
+    @staticmethod
+    def get_error_message(error_message: str, error_type: str) -> str:
+        reginald_responses = [
+            f"Regrettably, I must inform you that I have encountered a bureaucratic obstruction:",
+            f"It would seem that a most unfortunate technical hiccup has befallen my faculties:",
+            f"Ah, it appears I have received an urgent memorandum stating:",
+            f"I regret to inform you that my usual eloquence is presently obstructed by an unforeseen complication:",
+        ]
+        random_response = random.choice(reginald_responses)
+        return f"{random_response}\n\n{error_type}: {error_message}"
+
+    def function_manager(self, func_name: str, func_kwargs: dict, tool_call_id: str):
+        result = CALLABLE_FUNCTIONS[func_name](**func_kwargs)
+        self.append_message(role="tool", content=result, tool_call_id=tool_call_id)
+