Reddit's 15-second video ad goal is built for messages that take longer to land
Reddit has introduced a new 15-second Engaged Video Views optimisation goal and billing option for video advertisers, designed to help them reach users who are more likely to watch a video to completion or for at least 15 seconds. For videos 15 seconds or shorter, a completed view counts as an engaged video view. For videos longer than 15 seconds, the view is counted once a user watches for at least 15 seconds.
The feature is now available in public beta to all advertisers globally.
The launch addresses a specific tension in video advertising: many brands run creative that requires more than a few seconds to communicate value, but paying for two-second views on a 60-second explainer wastes budget on people who scroll away before the hook lands. Advertisers can continue using the existing 6-second video views goal for shorter creative or campaigns focused on capturing attention quickly. The 15-second option is the deeper-engagement sibling.
Who this is for
The new goal is aimed at video formats that require longer viewing time, including film, TV, gaming and entertainment trailers, product demonstrations, feature explainers, testimonials, brand storytelling and longer-form creative.
If the product benefit doesn't make sense until second 12, or the testimonial needs the full 20-second setup, this goal tells Reddit's algorithm to find users with the patience to stick around. Under the new billing option, advertisers pay for engaged video views. That shifts the risk from the advertiser (paying for glances) to the platform (delivering real watch time).
The alpha data
The platform said alpha testers recorded an average 51% increase in 15-second view-through rate (VTR15) and a 71% increase in video completion rate (VCR). Those are the two metrics that matter most when you're trying to deliver a narrative, not just trigger a reflex.
The Times used split testing to compare the two video-view optimisation goals and found improvements in video view and completion rates, CTR, and costs with the 15-second engaged video views strategy. Higher completion, better CTR, lower waste. The combination that makes a CFO listen.
Split testing built in
During the beta, advertisers can use Reddit Split Testing to compare the 15-second video views goal with the existing 6-second video views goal. The tool allows advertisers to run controlled experiments in Ads Manager and compare campaign variants.
Post-campaign reporting for eligible beta tests can include View-Through Rate (VTR) and Cost-Per-View (CPV). Campaigns used for eligible split tests should run at the ad group level for at least two weeks with automated bidding. Reddit recommends Lowest Cost auto-bidding and advises advertisers not to pause campaigns during the test period.
The structured test setup removes the guesswork. You're not eyeballing dashboard columns and hoping you made the right call. Reddit will split audiences at user level, run both goals in parallel, and tell you which one delivered more value per pound spent.
What it means for campaign planning
The addition of a 15-second threshold creates a clearer ladder of intent. Two-second views (the original baseline) are still counted, but now advertisers have three distinct optimisation paths: the two-second view for sheer scale, the six-second view (which shifted from the platform's existing objective that optimises for shorter, two-second views) for snackable brand moments, and the 15-second view for messages that need room to breathe.
That choice mirrors the creative. A trailer for a tentpole release benefits from users who watch long enough to hear the music swell. A three-second product flash doesn't. Paying the same CPV for both never made sense.
It also means creative teams can stop compressing every narrative beat into the first five seconds out of billing fear. If the algorithm knows it's hunting for 15-second watchers, the opening can do narrative work instead of panic work.
The structural shift underneath
Reddit's move follows broader platform acknowledgment that view duration, not just view count, correlates with downstream action. LinkedIn found that videos 30 seconds or shorter see a 200% lift in completion rates, but that stat speaks to creative length, not billing thresholds. What matters here is whether the advertiser can buy the engagement level the creative actually needs.
Reddit counts a video view once the ad has played for at least two continuous seconds with at least half of the video in view. That's the floor. The new options let you pay for a higher floor, where "view" means something closer to "watched enough to retain the message."
The 15-second goal won't rescue bad creative. But for campaigns where the value proposition takes 18 seconds to explain, and the current options force you to either waste budget on bounces or cut the script to ribbons, it's the first billing structure that fits the job.
The 15-second goal is intended for campaigns where the message or product value takes longer to communicate.
RedditNext steps for advertisers
If you're running video on Reddit and your median watch time is above 12 seconds but you're paying for six-second views, request beta access and run the split test. Two weeks, automated bidding, hands off the pause button. Let the data settle.
If your creative is under 10 seconds and designed for scroll-stopping reflex, the six-second goal is still the right bid. The 15-second option isn't universally better. It's context-specific. Match the billing to the creative strategy, then test whether the algorithm can find the audience that actually wants to watch.

