15th Sep 2026
The Hidden AI Layer Driving Advantage+ Performance
Shreya PatelEvery time someone opens Facebook or Instagram, Meta has just a few milliseconds to decide which advertisement should appear. That decision is no longer powered by a single algorithm. Instead, it passes through three AI systems Andromeda, Lattice, and GEM, that work together to retrieve, rank, and continuously improve ad delivery. Together, these models have replaced hundreds of independent machine learning systems with a unified AI architecture that learns across Facebook, Instagram, Reels, Stories, and Threads. The result is faster retrieval, smarter ranking, and more personalized advertising at a scale that would have been impossible with Meta's previous infrastructure.