Changelog
What's new in Metric37
March 2026
Free Humanizer Preview
Try before you sign up — paste AI text and see it humanized instantly, no account required.
March 2026
AI vs Human Blind Test
Interactive quiz to test if you can spot AI writing. Challenge your friends.
February 2026
Two-pass humanization pipeline
New voice injection pass produces dramatically more natural output with personality and rhythm variation.
January 2026
API access for Pro and Business
Full REST API with API key authentication, rate limiting, and comprehensive documentation.
December 2025
Version history with inline diff
Track every version of your document. Click any version to see word-level diff comparison.
November 2025
Metric37 launches in public beta
AI-powered text humanization for freelancers, agencies, and content teams.