Generate report with OpenAi Python Library / free API key

My environment:
OpenAi Python Library; local Jupyter notebook, notebook with 16 GB RAM.
My idea:
I want to create a final report with data from reports of an external and internal vulnerability scan (by Nessus).
As an example, I am providing a triple report of an external and internal vulnerability scan and a final report.
My questions:
a) is this possible with the mentioned lib. and a free API key?
b.1) if no - what options? what consequences?
b.2) if a) yes - what would be a strategy? prompt engineering strategy?

I would appreciate any (serious) answer - thanks in advance!