Meta Announces Next Generation of Meta Andromeda Ads Retrieval Engine
According to Meta. Meta describes the next generation of Meta Andromeda, its personalized ads retrieval engine, leveraging model, system, and GPU hardware co-design.
- • Meta shares details on the next generation of its personalized ads retrieval engine, Meta Andromeda.
- • In production, the system surfaces top candidates at over one billion ads per second.
- • Since 2025, Meta Andromeda has delivered a 2.4% increase in conversions on Facebook.
- • The architecture introduces large language model inspired mixture of experts into retrieval.
Next Generation Ads Retrieval Engine
This post describes the next generation of Meta Andromeda, Meta's personalized ads retrieval engine, and how co-designing the model, system, and GPU hardware unlocks a new efficiency frontier for ads retrieval. In production, the system scores every eligible ad with near ranking-level model performance at retrieval scale and surfaces the top candidates at over one billion ads per second.
Performance Gains and Architecture
Since 2025, Meta Andromeda has delivered a 2.4% increase in conversions on Facebook. For advertisers, this means better performance automatically from the retrieval system matching ads across a larger candidate pool, within the same latency budget, building on foundations established with previous launches.
- 1. engineering.fb.comOpen source