Meta AI lives where 3.35 billion users already are, seamlessly integrated into Facebook, Instagram, WhatsApp, and Messenger. Built on Llama 4 with 10 million token context (100 books of memory), it offers zero-friction AI access. But here's the strategic distinction: while Meta AI keeps consumers in their social ecosystem where conversations become advertising data, businesses can deploy open-source Llama 4 directly with full data control and no vendor lock-in.