OpenAI allows for access to different LLM models using APIs. I created my first simple exploration by following a few steps.
First, I had created an account with OpenAI- you can do so by funding your account with as little as $5. Then, I created a project and within that project, created an API key. That key, when used with a program on my client workstation, would allow me to access a model that I selected.
Next, I created a project file titled ‘example.py’. I then set an environmental variable to hold that API secret key that I had just created. That environmental key is held privately within my computer and shared with the file when it is executed.
Now for the code of “example.py” itself:
from openai import OpenAIclient = OpenAI()response = client.responses.create( model="gpt-5.5", input="Write a one-sentence bedtime story about a unicorn.")print(response.output_text)
In order to run this, I needed to install a virtual environment:
python3 -m venv .venvsource .venv/bin/activate[ the venv environment is now running]python example.py
And my terminal output the LLM model’s bedtime story:

Very cool!