Meta's Andromeda algorithm is more efficient at finding every possible viewer for your ad. In 2024, an ad might take two weeks to exhaust its audience. In 2026, the same ad can reach its entire addressable audience in under a week.

This is not a bug — it is the algorithm doing its job better. But it creates a structural problem for advertisers: creative ideas expire faster. The brands that win are the ones that can produce genuinely different creative concepts at the pace the algorithm consumes them.

Here is what happens to a typical Meta ad in 2026 under moderate spend:

Most brands respond to declining performance by making surface-level changes. These changes feel productive but do not address the underlying problem.

Creative fatigue happens at the mechanism level. The audience does not remember your exact words — they recognise the pattern. The fix is building ads that use fundamentally different psychological mechanisms.

Meta's Entity ID system groups visually and structurally similar ads together. When you create five “variants” of the same concept with different headlines, the algorithm treats them as one creative entity. They compete for the same impression opportunities instead of expanding your reach.

This is why creative diversity must happen at the concept level. Five structurally different ads — each with a unique hook archetype, tension framing, and emotional arc — are treated as five separate entities. They reach different segments of your audience and fatigue on independent timelines. Learn more in our creative diversity guide.