In context
Andromeda analyzes your ad within 0.1s per impression, ranking it against every other advertiser competing for that user. A high-quality, on-brand, PDA-framed creative scores higher; a generic template-based creative scores lower. Over a week of delivery, Andromeda will push 80% of your budget to the top 2-3 creatives in an 8-angle test, which is exactly what you want.
Why it matters
- Andromeda rewards diversity of angle — not diversity of artwork.
- Andromeda's decision happens every impression, not once per campaign.
- Beating Andromeda = feeding it great creative and letting CBO do the rest.
Related terms
Frequently asked questions
When did Andromeda launch?
Meta announced it in 2024; full rollout across placements through 2025. By 2026 it's the default ranker.
Can I opt out of Andromeda?
No — it's part of Meta's infrastructure. You influence it through creative quality and bid strategy.
Does Andromeda hurt small advertisers?
No — it actually helps if your creative is strong. It penalizes low-effort template ads more than it used to.