Meta Andromeda explained: what it changes for your Facebook and Instagram ads

Meta's Andromeda system now decides which ads get a chance to show. Targeting matters less, creative matters more. Here's what changed and what a small business should do about it.

The short answer

Meta Andromeda is the first step in how Meta chooses ads. From tens of millions of ads, it shortlists a few thousand that might suit a person, and later models rank that shortlist[1]. Because it looks closely at the ads themselves, your creative now does much of the targeting. If your Facebook and Instagram ads feel weaker this year, the fix is usually more variety in creative, not narrower audiences.

It's also why so many people are searching for it. In India, interest in "meta ads" hit a 12-month high in October 2026, and searches for "andromeda meta ads" rose 450%[4].

+8%ads quality on selected segments when Meta first rolled out AndromedaSource [1]
+14%ads quality gain on Facebook that Meta reported from Andromeda in Q3 2025Source [2]
+450%rise in Indian searches for "andromeda meta ads" over the past yearSource [4]

What actually changed

Meta announced Andromeda in December 2024 as a retrieval engine with 10,000 times more model capacity than before[1]. Through 2025 and 2026, Meta kept building on it, alongside a separate ranking model called GEM that scores the ads Andromeda shortlists[2]. Agencies often use "Andromeda" as a loose name for all of these changes together.

BeforeNow
You told Meta who to show ads to with detailed interestsMeta finds the people, largely based on what your ad shows and says
Many ad sets, each with a narrow audienceFewer ad sets with broad audiences, so the system has room to learn
One winning ad, copied in small variationsSeveral clearly different ads, each speaking to a different kind of customer
Creative refreshed when results droppedNew creative added regularly, before fatigue sets in
Before
You told Meta who to show ads to with detailed interests
Now
Meta finds the people, largely based on what your ad shows and says
Before
Many ad sets, each with a narrow audience
Now
Fewer ad sets with broad audiences, so the system has room to learn
Before
One winning ad, copied in small variations
Now
Several clearly different ads, each speaking to a different kind of customer
Before
Creative refreshed when results dropped
Now
New creative added regularly, before fatigue sets in

What "different creative" really means

Changing the background colour or swapping one word doesn't count. Meta's system treats near-identical ads as the same idea[3]. Real variety means a different angle, a different person or a different format.

Five angles most small businesses can make

  • The problem: show the everyday frustration your product or service fixes.
  • The proof: a real customer, review or before-and-after.
  • The offer: price, bundle or festive deal, said plainly in the first two seconds.
  • The demo: your product being used, or your service being done.
  • The person: the founder or team explaining why you do it differently.

Mix the formats

  • Vertical video (9:16) for Reels and Stories.
  • Square or 4:5 images for Feed.
  • Carousels for products, menus or step-by-step stories.
  • Use Meta's flexible format to give one ad several images or videos, and add a few different headlines and primary texts[3].

A checklist for small budgets

  • Run one campaign per goal (leads, sales or messages) instead of many small ones.
  • Use broad targeting within your delivery area, and let the creative decide who responds.
  • Launch with three to six clearly different creatives, not one.
  • Give each test about a week before judging it, and judge on leads or sales, not likes.
  • Add two or three new creatives every few weeks, and pause the ones that clearly lag.
  • Send people to WhatsApp, a call button or a short form, and track every lead back to the ad.

If you're in the US or selling to customers abroad, the same rules apply. Andromeda runs across all of Meta's ads, not just in India.

Common mistakes we see after the update

  • Splitting a ₹500 a day budget across ten ad sets, so none of them learns.
  • Running the same video with three different captions and calling it a test.
  • Turning off ads after two days because the cost per lead looked high.
  • Judging ads on reach and likes when the goal is enquiries.
  • Using only polished brand photos. Real, phone-shot videos often work as well or better.

Need ads that keep up with Meta?

Retales plans, shoots and runs Facebook and Instagram ads for businesses across India, with fresh creative every month and every lead tracked in your client dashboard. We're headquartered in New Delhi. If your ads have slowed down this year, send us a message and we'll tell you honestly what we'd change first.

Sources

Every statistic in this article comes from one of these publications. Links open the original source in a new tab.

  1. 1
    Meta Andromeda: supercharging Advantage+ automation with the next-gen personalized ads retrieval engine Engineering at Meta · 2 December 2024 · engineering.fb.comHow Andromeda shortlists ads, with a 6% recall gain and 8% ads quality gain on selected segments.
  2. 2
    Andromeda: timeline and coverage PPC Land · ppc.landDated timeline of Meta's statements on Andromeda, GEM and creative diversification guidance, 2024 to 2026.
  3. 3
    Meta Andromeda and creative diversification: 7 examples explained Jon Loomer Digital · jonloomer.comPractical examples of meaningful creative variety, flexible format and text variations.
  4. 4
    Google Trends: search interest in India, October 2025 to October 2026 Google Trends (Retales analysis) · 28 October 2026 · trends.google.comInterest for "meta ads" reached its 12-month peak in October 2026. Rising related searches included "andromeda meta ads" (+450%) and "google reviews" (+140%).
Meta AndromedaAndromeda Meta adsMeta ads 2026Facebook ads not workingInstagram ads for small businessCreative diversificationAdvantage+ campaignsMeta ads India

This article is for general information and isn't financial or legal advice. Figures are as published by each source on the date shown.

Questions people ask

Quick answers, based on the sources above.

Still unsure? Ask us directly

What is Meta Andromeda?

Andromeda is Meta's ad retrieval system. It picks a shortlist of a few thousand ads, from tens of millions, that could suit each person, before other models rank them.

Why are my Facebook ads not working in 2026?

Often because the account has too many narrow ad sets and too little creative variety. Meta now relies on the ads themselves to find the right people, so it needs several clearly different creatives to work with.

How many creatives should I run on Meta ads?

For a small budget, start with three to six creatives that are genuinely different in angle or format, then add a few new ones every few weeks.

Is detailed targeting dead on Meta?

Not completely, but it matters much less. Broad targeting with strong, varied creative usually gives the system more room to find buyers.

Meta Andromeda update ke baad kya karna chahiye?

Ad sets kam kijiye, targeting broad rakhiye, aur 3 se 6 alag-alag creatives chalaiye: problem, proof, offer, demo aur founder wale angle. Har kuch hafton mein naye creatives jodiye.

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