#Grammarly: AI Writing Before ChatGPT
A browser extension that corrects grammar became a $13 billion company—and one of the most ubiquitous sponsored products in YouTube history.
The Rise
Grammarly launched in 2009 as an online proofreading tool but gained mainstream traction around 2015-2016 when its browser extension became impossible to avoid.
The tool offered real-time grammar, spelling, and style suggestions across email, social media, and documents. The free tier handled basics; Premium ($12/month) added tone detection, clarity suggestions, and plagiarism checking.
The YouTube Takeover
By 2017, Grammarly sponsored seemingly every YouTube creator. Tech channels, commentary channels, cooking channels—all featured the same talking points: “helps you write mistake-free in Gmail, Facebook, Twitter…”
The ubiquitous sponsorships became a meme. Viewers joked about Grammarly ads being mandatory YouTube viewing. Some creators built entire parody segments around them.
The Professional Adoption
Despite meme status, Grammarly proved genuinely useful. Non-native English speakers relied on it for professional communication. Students used it to catch errors before submission. Business professionals valued the tone detection for email.
The company claimed 30 million daily users by 2020. Its AI suggestions evolved from simple grammar fixes to style and clarity improvements—essentially light editing AI years before ChatGPT.
The Privacy Concerns
Critics raised security questions: Grammarly’s browser extension could read everything users typed. Corporate IT departments banned it for handling sensitive information.
The company insisted data was encrypted and not used for training, but the privacy implications of an always-watching writing assistant generated ongoing debate.
In 2021, Grammarly raised funding at a $13 billion valuation, proving the humble grammar checker had become essential infrastructure for written communication.
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