Earlier this week, Mark Zuckerberg published a memo outlining his vision to build AI "superintelligence." Citing "safety concerns," he wrote that Meta would need to be "rigorous" about what it open sources and what it doesn't.

Meta is shifting how it plans to ensure widespread access to superintelligence, a suggestion that the company’s most advanced AI may remain closed so that Meta can stay in the driver’s seat.

In a new open letter, Mark Zuckerberg wrote that he is “extremely optimistic” that super-intelligent AI will play a major role in moving humanity forward. And unlike some other big players in the AI industry,