Meta CEO Mark Zuckerberg at Senate Judiciary Committee hearing
Meta CEO Mark Zuckerberg.
  • Mark Zuckerberg is betting big on AI — no matter the cost. 
  • Meta plans to increase spending to invest "aggressively" in "AI research."  
  • Investors balked at the costs, sending Meta shares tumbling in after-hours trading.

Not everyone is on board with Mark Zuckerberg's AI enthusiasm.

Meta shares took a post-earnings battering in after-hours trading despite reporting better-than-expected revenues as investors balked at its AI spending plans.