Upload your ad.
Get back the cut that wins.
One button. We cut your ad 6 ways, score every cut against 76 proven viral ads, and hand you the winner — ready to post.
Six re-cuts and your original, all scored by a brain model. Highest score wins — you keep every file.
Your first tournament is free. After that about $7 — vs $3,500+ to test 7 variants on live traffic.
See a finished tournament with receipts →
Works on any ad — filmed, designed, or AI-generated.
Benchmarked against TikTok Creative Center top-performers · No opinions · No guesswork
Why you can trust the score
AdCortex™ was trained on published fMRI research — real brain scans recorded while people watched video — and predicts viewer attention and engagement from your creative alone.
Trained on real brain data
The model comes from published neuroscience research: fMRI data recorded while people watched video. Your ad never touches a scanner — the prediction comes from its visual and audio features.
Benchmarked against public winners
Your score is a percentile against 76 TikTok Creative Center top performers — and the whole benchmark is public: every video, curve, and transcript.
Proven on a real rescore
We took a live KAYAK banner that scored 5/100 and rebuilt it with the score as the guide — three rounds later it hit 88.
Score any ad format
Video ads up to 60 seconds — TikTok, Reels, YouTube — or any static image. We convert stills to a 10-second visual stimulus and score everything against the same benchmark. Shot on a phone, cut in an editor, or made with AI — the model scores the creative, not the process.
Four things your score tells you
Not a single number you don't understand. A full breakdown of what's working and what isn't.
Hook Strength
How hard your first 3 seconds capture attention. Weak hooks lose viewers before your message lands.
Attention Drop
The exact second your viewer's predicted engagement falls. Know where you're losing them so you can fix it.
Peak Moment
The single highest-engagement frame in your video — your best thumbnail candidate.
Purchase Signal
Predicted engagement during your CTA window. High signal means viewers are still locked in when you make your offer.
Know which thumbnail to use
AdCortex ranks every frame of your video by predicted engagement. Your Peak Moment — the single highest-scoring frame — is your strongest thumbnail candidate, picked by data instead of gut feel.
We ran our own ad through the tournament.
This is our ad. We threw the full bracket at it — re-cuts scored 50, 30, 5, and 0. The original won. The machine told us our cut was already the best version, so that's what we ship. When a re-cut wins, it says that instead.
Tools that always claim to improve your ad are selling edits, not answers. Ours will tell you when you were already right.
See the full receipts for this tournament →Watch it work: a real ad, rescored from 5 to 88
We pulled a live KAYAK banner from the ad library and rebuilt it with AI image tools in three scored rounds — same offer, same price, 83 points better.
5
47
88See the 76 ads your score is measured against
The full benchmark is public: 76 proven TikTok Creative Center top performers, each with its video, attention curve, and transcript. Even "winners" vary 55× in brain engagement — see where the bar actually is.
New · Competitor intelligence · Facebook Ad Spy on the PreTestAds MCP
Point your AI at any advertiser.
Get told exactly what to steal.
Every spy tool shows you the ads your competitors run. None can tell you which ones actually work. Now your AI can. Say "spy on this brand's Facebook ads," and it opens the public Meta Ad Library, reads their entire live account, and scores every ad for attention — then hands back a verdict on each.
No uploading. No homework. Their whole playbook, judged — before you spend a dollar.
The verdict no spy tool can give you
HIDDEN GEM
Great creative nobody's backing — steal it early
MODEL IT
Proven winner — copy the structure
SKIP
Nothing to learn or beat
OUT-HOOK IT
They're committed to weak creative — beat it
Creative attention score →
Three steps. One answer.
Upload your ad
Drag and drop your video or image ad. We handle the rest.
AdCortex™ scores it
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.
Know exactly what to fix
You get your Hook Strength, the exact second attention drops, your Peak Moment frame, and your Purchase Signal at the CTA — a straight read on whether the ad holds attention, about six minutes after you upload it.
Simple pricing
A full tournament — 6 re-cuts + your original, all scored — is 3 credits (about $7). A single ad score is 1 credit.
For scale: a live A/B test runs $500+ per variant before significance — testing 7 variants on traffic is $3,500 and a week. The tournament answers the same question in 10 minutes.
Try it free before you pick a plan
Up to 8 free credits — 1 for signing up, 2 more when you verify your phone, 5 more after your first scored ad. No credit card; free credits expire in 7 days. The quick SMS check just keeps bots from farming free tests.
Claim your free credits →Need more? Buy credit packs anytime — 10 for $45, 25 for $99, 50 for $179. Full pricing details →
See your ad's score before you spend
Upload your ad and get an answer — not an opinion.
Run Your First Tournament →No credit card · Up to 8 free credits — 1 on signup, 2 on phone verify, 5 after your first scored ad