Their charter is here:
https://openai.com/charter/>"We are committed to providing public goods that help society navigate the path to AGI. Today this includes publishing most of our AI research, but we expect that safety and security concerns will reduce our traditional publishing in the future, while increasing the importance of sharing safety, policy, and standards research."
So, in a perfect world you would not only publish your research but also the code that is fundamental to it. Maintaining or abandoning research code on the other hand is an entirely different (costly) story that's simply an artifact of research focused software development. It is typically abandoned.
Personally, I see a huge flaw in the underlying philosophy. This presumption that this specific organization is or can somehow be benevolent flies in the face of all history. With nuclear weapons, most of the scientists regretted supporting their countries regardless of how beneveloant they thought they were.
In general, any sort of concentrated power tends to corrupt. It takes a very special mindset to understand power and refuse to abuse it. I'm not sure this is something that can be easily learned, trained, or you could expect a large group with access to the power to all adhere to the principles of.