import openai

client = openai.OpenAI(
    api_key = "YOUR_POE_API_KEY",  # or os.getenv("POE_API_KEY")
    base_url = "https://api.poe.com/v1",
)

response = client.responses.create(
    model = "gpt-5.1-codex",
    input = "Write a Python function that reverses a string without using any built in string manipulation functions or libraries"
)

print(response.output_text)