from openai import OpenAI

client = OpenAI(api_key="your_api_key_here")

response = client.chat.completions.create(
    model="gpt-5",  # or gpt-4o-mini, gpt-4.1, etc.
    messages=[
        {"role": "system", "content": "You are a helpful assistant."},
        {"role": "user", "content": "How do I send queries to the ChatGPT API?"}
    ]
)

print(response.choices[0].message["content"])