Meta Andromeda

Proprietary next-generation ads retrieval engine powering Meta's global advertising platform, not commercially available to third parties

Meta Andromeda is a personalized ads retrieval engine built in partnership with NVIDIA that applies machine learning to the earliest stage of Meta's ad delivery pipeline.¹ It operates as the first step in a multi-stage recommendation system, narrowing tens of millions of ad candidates down to a few thousand relevant options before more sophisticated ranking models determine the final ads shown to a user.¹ The system uses a deep neural network with increased compute complexity running on the NVIDIA Grace Hopper Superchip, and its deployment across Instagram and Facebook has achieved a six-percent recall improvement in retrieval and an eight-percent improvement in ads quality on selected segments.¹ Andromeda supports Meta's Advantage+ suite, which automates budget allocation, audience targeting, and bid adjustments, with advertisers who activated its AI-driven targeting features reporting a 22-percent increase in return on ad spend.¹ The engine is designed to scale with the growing volume of ad creatives generated through generative AI tools, using a hierarchical index built on deep neural networks to handle that expansion efficiently.¹ Source 1: fb.com — Meta Andromeda: Supercharging Advantage+ automation ...