AdCortex™ engagement prediction model
Upload a video or image ad. AdCortex™ predicts how strongly it captures attention, second by second, and benchmarks it against curated top-performers from the TikTok Creative Center. You get a score, a full breakdown, and an AI-ready report you can paste directly into Gemini for frame-level coaching.
Benchmarked against TikTok Creative Center top-performers · No opinions · No guesswork
Video or static image — same engagement scoring, same benchmark.
TikTok, Instagram Reels, YouTube — any video ad up to 60 seconds.
Packaging, banner ads, print ads, product thumbnails. We convert your image to a 10-second visual stimulus and score it the same way.
Not a single number you don't understand. A full breakdown of what's working and what isn't.
How hard your first 3 seconds capture attention. Weak hooks lose viewers before your message lands.
The exact second your viewer's predicted engagement falls. Know where you're losing them so you can fix it.
The single highest-engagement frame in your video — your best thumbnail candidate.
Predicted engagement during your CTA window. High signal means viewers are still locked in when you make your offer.
After your score, copy your AI Report and open Gemini. Upload your video alongside the report — Gemini can watch your actual ad and map the engagement data against specific frames, giving you precise recommendations: what to cut, what to move, what to reshoot. It's the fastest way to turn a weak score into a strong one.
For static images it goes even further. Upload your banner or packaging shot, get the score, then ask Gemini to redesign it based on the engagement data. Gemini generates a new version — you score that one too. In our internal testing, we took a static ad from a 46% to a 76% late-window signal in three rounds, using nothing but PreTestAds scores and Gemini-generated mockups.
Engagement data + video = frame-level coaching
Engagement data + AI image generation = a creative testing loop that used to cost thousands
Drag and drop your video or image ad. We handle the rest.
Our engagement prediction model scores your ad frame by frame and compares it against a curated benchmark of TikTok Creative Center top-performers — the ads TikTok itself holds up as the gold standard.
See your Hook Strength, where attention drops, your peak engagement moment, and your purchase signal — then paste your report into Gemini with your video for frame-level coaching.
1 credit = 1 analysis. Know before you spend.
Need more? Buy credit packs anytime — 10 for $45, 25 for $99, 50 for $179.