Yet another co-founder departs Elon Musk's xAI

xAI co-founder Tony Wu abruptly announced his resignation from the company late Monday night, the latest in a string of senior executives to leave the Grok-maker in recent months.

In a post on social media, Wu expressed warm feelings for his time at xAI, but said it was "time for my next chapter." The current era is one where "a small team armed with AIs can move mountains and redefine what's possible," he wrote.

The mention of what "a small team" can do could hint at a potential reason for Wu's departure.