Upload your video ad before launch. Get an expert AI critique with 0–100 scores for Hook, Bridge, and Offer, concrete fixes, rewrite ideas — plus a brain-response simulation.
No credit card required · 1 free analysis on signup
“Screened 15 creatives down to 4 before launch. Saved weeks of test budget.”Alex K. · Paid Social Lead, DTC brand
Sample result
Hook 82 · Bridge 71 · Offer 65 — bridge needs work
Built on published brain-encoding research
Hook score measured against SnapUGC (ECCV 2024) ground-truth early retention, n=218. It separates weak hooks from strong ones; it does not rank two near-identical variants.
Drop in any MP4 or MOV up to 30 seconds. Perfect for TikTok hooks, Instagram Reels, and YouTube Shorts.
MP4 or MOV · max 30s · 40MB
A vision language model prompted as a senior paid-social strategist scores your hook, bridge and offer windows, then writes up what to fix in each one.
Explore frame-level engagement predictions, attention peaks, and emotional arcs across your video.
Engagement score
Hook 82 · Bridge 71 · Offer 65 — bridge needs work
Platform-specific analyzers
Get expert AI critique of your TikTok ad hooks — scores, concrete fixes, and rewrite ideas before you spend.
Learn more ReelsIdentify Reels ad attention peaks and where viewers lose interest before you launch on Instagram.
Learn more ShortsOptimize YouTube Shorts ad hooks with brain engagement scoring before your campaign goes live.
Learn moreStop guessing which hook to test. Get an expert AI critique before you spend.
Find the weak opening before you pay for impressions. Measured against 218 videos with real retention labels: it separates weak hooks from strong ones, but won't call a 72 over a 68.
See the exact second you lose viewers across Hook, Bridge, and Offer segments. Fix the weak point — not the wrong one.
Analysis runs on dedicated A100 GPU hardware. Most ads scored in under 5 minutes — faster than your first day of campaign spend.
Hook / Bridge / Offer scores
Get instant feedback on your hook or retention — no account required.
Paste your hook text and get an instant score with improvement suggestions. No video required.
Grade your hookInput your video structure and see a predicted retention curve before you record.
Analyze retentionThe score you see comes from a video-AI critique that reviews your ad like a senior media buyer. We measured it against 218 short videos carrying ground-truth early-retention labels: it correlates at Spearman 0.43, which reliably separates a weak hook from a strong one but will not tell you a 72 beats a 68. Almost nobody in this category publishes a number like that, and it is the honest one. Paid plans also render a simulated brain-response curve from TRIBE v2, a published Meta AI Research encoding model, as a secondary, directional panel — not as the score.
TRIBE v2
Meta AI Research · 2026
Early users
“Screened 15 creatives down to 4 before launch. Saved weeks of wasted test budget.”
Alex K.
Paid Social Lead, DTC brand
“We now show clients hook scores before creative goes live. Changed how we pitch creative strategy.”
Priya M.
Head of Paid Social, Performance Agency
“30 creatives tested, 0 winners. We analyzed the hooks and found the problem in 20 minutes.”
Jordan L.
Performance Marketing Lead, DTC brand
See how an AI creative review stacks up against the other ways of testing an ad before it runs.
Enterprise neuromarketing platforms are sales-led and scoped. Panel-based tools need consumer recruitment. VidCognition is a self-serve critique of one cut, free to start, then $29/month.
1 credit = 1 second of video. Min 5 credits per analysis.
For DTC teams testing ad hooks regularly.
For performance marketing teams managing multiple accounts.
For agencies and high-volume users.
Upload your video ad before launch. Get an expert AI critique in about a minute. Your first analysis is free.