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.

Prompt engineering has become one of the most misunderstood concepts in AI today. Most people think it's about learning templates like "act as an expert" or crafting detailed instructions with specific roles. But real prompt engineering is actually system design for building AI applications at scale. This article explains when you actually need prompt engineering (spoiler: most of us don't) and when simple, natural communication with AI works just fine.