or C) the first AGI was/is being/will be carried away by men with earpieces to a heavily fortified underground compound. any government - let alone the US government - isn't going to twiddle their thumbs while tech that will change human history is released to the unwitting public. at best they'll want to prepare for and control the narrative surrounding the event, at worst AGI will be weaponized against humans before the majority are aware it exists.
if OAI is motivated by money, uncle sam can name any figure to buy them out. if OAI is motivated by power, it becomes "a matter of national security" and they do what the gov tells them. more likely the two parties' interests are aligned and the public will hear about it when It's Time™. not saying C) is what's happening - A) seems likely too - but it's a real possibility