Reels
Reels is Meta's short-form video format on Instagram and Facebook: 9:16 vertical, hook-driven, 6-90 seconds.
What does Reels actually mean?
Reels is Meta's TikTok-equivalent short-form video format, available on both Instagram and Facebook. Format spec: 9:16 vertical, 6-90 seconds, hook-first openings, burned-in captions, sound on by default.
Reels became the dominant Meta ad placement in 2023-2024 as Stories declined. Most performance teams now allocate 40-60% of Meta creative volume to Reels-native cuts. Older square (1:1) and 4:5 Feed ads still work for retargeting but underperform Reels for cold prospecting.
Reels-native creative differs from repurposed TikTok content. Top of mind: hooks need to capture attention against IG's slightly older audience (vs TikTok's), captions matter more (audio-off viewing is higher on IG), and brand fidelity is more important (IG users tolerate less raw / shaky content than TikTok).
Example
A DTC brand ships 12 Reels-native ads per week across Meta and TikTok. The Reels versions have slightly more polished pacing and burned-in captions; the TikTok versions are rougher and faster-moving. Same source, different cuts per platform.
When it matters
Reels is the dominant Meta ad placement in 2026. Repurposed Feed posts underperform Reels-native creative; the format requires its own production discipline.
Related terms
Stories
Stories is Meta's full-screen 9:16 vertical ad format on Instagram and Facebook. 24-hour duration, immersive, swipe-up interaction.
Shorts
Shorts is YouTube's vertical short-form video format: 9:16, up to 60 seconds, monetizable as ads via Demand Gen and Performance Max.
Carousel
Carousel is a multi-card ad format on Meta, LinkedIn and Pinterest: 2-10 swipeable cards, each with its own image, headline and link.
Spark Ads
Spark Ads on TikTok promote organic creator posts as paid ads, preserving the creator's handle and engagement signals.
UGC
UGC is creator-style content (testimonials, unboxings, demos) used as ad creative. Originally human-produced; now also AI-generated.
Hook
The hook is the first 1-3 seconds of an ad: the moment that earns attention and decides whether the rest of the ad gets watched.
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