It seems openAI is getting less and less open. I would like to see the source too, although I think maybe we've been a bit spoiled in the past expecting them to share all their source with us.

They have a lot of incentives not to. Keeping the code under wraps allows them to maintain an edge over other researchers and companies and the space, which helps them secure more funding, publish more papers etc.

It's also not really fair to them if some other research group uses code from OpenAI to achieve results and then doesn't share their own code or modifications.