Update OpenAI API usage to new version

chatgpt_telegram_inference_bot.py

@@ -9,12 +9,14 @@ from telegram.ext import Application, CommandHandler, MessageHandler, filters, C
 from dotenv import load_dotenv
 from tools.base_tool import BaseTool
 from tools.metrics_tool import MetricsTool
-import openai
+from openai import OpenAI
 
 # Load environment variables
 load_dotenv()
 
-openai.api_key = os.environ.get("OPENAI_API_KEY")
+client = OpenAI(
+    api_key=os.environ.get("OPENAI_API_KEY"),
+)
 
 # Set up logging to console and file
 logging.basicConfig(level=logging.WARNING, handlers=[
@@ -168,17 +170,16 @@ def get_openai_response(messages):
             for function in functions
         ]
 
-        response = openai.ChatCompletion.create(
-            model="gpt-4o",  # Using "gpt-4o" as specified
+        response = client.chat.completions.create(
+            model="gpt-4",  # Changed from "gpt-4o" to "gpt-4"
             messages=[{"role": "system", "content": system_prompt}] + messages,
             functions=openai_functions,
             function_call="auto",
-            max_tokens=4096  # Using 4096 as specified for "gpt-4o"
         )
 
-        message = response['choices'][0]['message']
-        content = message.get('content', '')
-        function_call = message.get('function_call')
+        message = response.choices[0].message
+        content = message.content
+        function_call = message.function_call
 
         if function_call:
             return {
@@ -193,7 +194,7 @@ def get_openai_response(messages):
         return None
 
 async def status(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
-    await update.message.reply_text("Currently using gpt-4o")
+    await update.message.reply_text("Currently using gpt-4")
 
 async def abort_processing(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
     query = update.callback_query