AI thumbnail maker for YouTube that writes the brief, generates the image and checks it at feed size
Analyze why short-form videos go viral
Stage
Not given
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Founded
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Based in
MA
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Pricing model
Paid
Freemium
Pricing
Not given
Free: 3 transcripts per day, videos up to 60 seconds, track 1 creator. Pro: $7.42/month (billed yearly at $89/year), or $9.99/month billed monthly; unlimited transcripts, 100 AI agent runs/month, 5-minute video limit, track 5 creators. Business: $16.58/month (billed yearly at $199/year), or $24.99/m
Key features
Paste YouTube video link to automatically write brief from title, description and transcript
Text is read back and corrected if letters are wrong
Checked at feed size with readability graded at 336 pixels
Brand kit to apply channel colors, lettering and visual style to every thumbnail
Export at 4K resolution (3840×2160) recommended by YouTube
Auto-Polish finds weakest point and fixes it automatically
Hook and narrative structure breakdown
0-100 viral score
Algorithm signal detection
Transcription across 50+ languages
Creator tracking and weekly digests
Batch import up to 50 videos
Viral Hook Generator AI agent
Script Rewriter AI agent
Chrome extension analytics
Searchable research library with filtering
What makes it different
Text automatically checked and corrected before you see the image
Built specifically for YouTube's constraints like duration badge corner and feed size
Full commercial rights with no watermark on any plan
Analyzes real viral videos, not generic AI templates
Breaks down observable patterns without copying competitor words
Surfaces algorithm signals that pushed videos to the For You Page