To those saying "this is impossible in our society", there is a long history of scientific fields mutually agreeing to pause certain work until safety and regulations could be put in place. The Asilomar Conference is an example. [1] The idea that "you can't put the genie back in the bottle" is very popular in tech culture, but many have suggested that simply extending elements of copyright or tort law to AI would be…
The problem is that anyone with sufficient money could rent out the infrastructure required to train GPT5 or what-have-you. They need not share it publicly, they can use it for their nefarious purposes privately. The analogous scenario would be preventing your military from experimenting with TNT, when the recipe for TNT is public knowledge. You can't copyright away public knowledge.
Good news, they’re all American companies.