Here's some insight from Jeff Dean and Noam Shazeer's interview with Dwarkesh Patel
https://youtu.be/v0gjI__RyCY&t=7390> When you think about divulging this information that has been helpful to your competitors, in retrospect is it like, "Yeah, we'd still do it," or would you be like, "Ah, we didn't realize how big a deal transformer was. We should have kept it indoors." How do you think about that?
> Some things we think are super critical we might not publish. Some things we think are really interesting but important for improving our products; We'll get them out into our products and then make a decision.