BrainScore
Score a video or script and pinpoint where attention fractures before you publish.
Score a YouTube video
Start with the URL. If transcript extraction fails, BrainScore will ask for the script and keep going.
Upload a YouTube Analytics screenshot to compare predicted vs actual drop-offs.
Make sure this retention graph is from the same video as the URL above. Mismatched graphs will produce inaccurate results.
One free neural diagnosis per session. Sign up free to unlock every rewrite.
A neural engagement score that predicts how your audience's brain responds in the first 15 seconds — the window where most videos are already lost.
A predicted attention map — second by second, where neural engagement rises, holds, and fractures, with exact quotes from your transcript at every inflection point.
Ranked attention fractures — the exact lines triggering viewer exit, with neural rewrites that reverse the damage before you publish the next video.
Why this feels different
Most tools grade your thumbnail. BrainScore reads your actual transcript against published attention research — curiosity gaps, cognitive overload, narrative memory — and shows you the exact lines where viewers leave. No invented percentages, no magic number: real quotes from your video, real research behind every flag, and your own retention graph as the judge if you upload it.