response = openai_client.chat.completions.create(

app.py

@@ -56,9 +56,12 @@ def generate_new_article(lesson_words, original_article, original_word_count, ba
             "Original Article" for Reference: The example provided is {original_article}。This article serves as a model for the spirit, style, and rhythmic pattern to be emulated.
         """
         
-        response = openai_client.Completion.create(
-            model="text-davinci-003",
-            prompt=prompt,
+        response = openai_client.chat.completions.create(
+            model="gpt-4-0125-preview",
+            messages=[
+                {"role": "system", "content": "You are a creative writer specialized in Chinese Children book. You will help me write Chinese Articles."},
+                {"role": "user", "content": prompt}
+            ],
             max_tokens=1000
         )