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Reels vs carousels in Q3 — the numbers surprised us

September 4, 2026 · 7 min · by GrowSub team
We assumed reels would keep winning on reach. Turns out carousels quietly outperformed on save rate, and save rate is now weighted heavily in feed distribution.

Everyone assumed reels-vs-everything was over. Reels win, carousels legacy. Then we ran Q3 numbers and got confused.

The surprise

Across 8 test accounts posting evenly (2 reels + 2 carousels per week), carousels quietly beat reels on save rate by 3.1x. Meta reweighted save rate in July 2026 — saves now contribute to feed and Explore distribution far more than in Q2.

Reels still won on reach (~2x). But carousels won on downstream signals — profile visits, follows, product-tag clicks.

Why

Reels consumed passively. Carousels require active engagement — tap to advance, more time per post, save for later.

Do this

Shift to 50/50 for the next 90 days. Carousels are hard (slide 1 has to be a standalone hook) but the ROI on saves is worth it — especially in "useful info" niches (finance, tech, cooking, fitness).

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