The endgame is systemic capture.
They stole the collective data of humanity as a whole and now sell it back to you in a rent scheme. Open source will be starved of data and compute.
You're supposed to become dependent on that "service" and slave away at paying for it, while being able to earn anything only in conjunction with it.
Note how difficult it already is to get any up-to-date documentation on anything capable of generating actual market value. A monopoly on competency ensures maximal profits.
Open source already has the "the collective data of humanity as a whole". That's the LLM leg. Now focus on what they train their models on for RL. Do other models have less code for training coding? for math? Those are pretty much the only cases where we can have reliable validation. Then, what's the next step. So many branches: legal contracs? etc. So much more obscure detail, which is why (I'd guess) so many startups exist in these areas.
AGI, I think, is an illusion: you need a whole lot of specialized bots. Heck, when I query a bot wrt something I know nothing about, I'm blown away by its ability to inform me. But when I ask about something I DO know about, its answers are half-assed. Heck, even when it can access the internet, it avoids all the sites that have paywalls, so it sends me to little reddit to conversations that are entirely untrustworthy.