gpt4: Unable to fetch response

[janiosarmento]

Describe the bug
When using the "gpt4" model, the package cannot fetch a response.

To Reproduce
Steps to reproduce the behavior:

1. Copy one of the examples at the initial page.
2. Change the line which initializes the resp variable to use gpt4 as a model).
3. Run the script.
4. Type anything to submit to the model, hit enter.
5. See error

Expected behavior
The script should display the model's response to the prompt

Screenshots

Desktop (please complete the following information):

• OS: Ubuntu 22.04 (but it happens on Macos as well)