Retention (Watch Time)
How much of a video viewers actually watch — the metric short-form algorithms weight most heavily.
Retention measures how long viewers stay, usually shown as a curve across the video's length. Feeds reward clips that hold attention, so retention (and its cousin watch time) is the strongest lever on reach. A steep early drop points to a weak hook; a mid-video dip points to slow pacing.
Tight edits, B-roll and captions all exist largely to protect retention.
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Average View Duration
The mean amount of time viewers spend watching a video, in seconds or as a percentage of its length.
Read →Completion Rate
The percentage of viewers who watch a clip all the way to the end (and often loop it).
Read →Hook Rate
The share of viewers who watch past the first few seconds — a direct measure of how well your hook works.
Read →Virality Score
An AI prediction (often 0–100) of how likely a clip is to perform, based on hook, pacing and retention signals.
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