Know which headline wins before you spend traffic on it.
Stage
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Founded
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Based in
US
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Pricing model
Freemium
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Pricing
Pro plan: $49/mo billed yearly. Team plan: $99/mo per seat. Contact for team plan details.
Free: $0/month with 5 rankings and 60 Claude-written options monthly. Creator: $19/month with 100 rankings and 2,500 options. Pro: $49/month with 600 rankings and 6,000 options. Agency: $149/month with 3,000 rankings and 20,000 options.
Key features
Smart Chat powered by GPT-4 for real-time editing feedback
Content Clusters to generate 10+ related content ideas in seconds
Wizard for transforming notes into outlines and paragraphs
Luna AI assistant for first draft generation from prompts
Boss Mode for complete content transformation
Custom Style Generator to write like famous authors and public figures
Multiple content templates including blog, essay, newsletter, and technical guides
Team collaboration with real-time editing
Rich media integration with links, images, and uploads
Public drafts to share work with others
Head-to-head comparison of up to 200 variants
Bradley-Terry model ranking with calibrated odds
Honest uncertainty verdicts: Clear, Lean, Too close to call
Brand profiles to calibrate accuracy on your audience
Works for YouTube titles, subject lines, ad headlines, and article headlines
Accuracy measured on 9,841 held-out A/B tests
What makes it different
Only AI writing assistant specifically trained for long-form content
Produces coherent, researched content without meaningless nonsense
30-day money-back guarantee on paid plans
Powerful text editor designed specifically for AI-generated content
GPT-4 powered features for superior quality output
82% accuracy on clear calls, trained on thousands of real A/B tests never seen during tuning
Honest about uncertainty instead of always crowning a winner
56 times cheaper than Claude Sonnet while maintaining comparable accuracy
Custom calibration to your audience's behavior via brand profiles
Compare versions in both orders to cancel out model bias
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