Categories AI

Anti-Grammarly: The AI Tool That Deliberately Adds Mistakes

In today’s digital age, the landscape of writing is evolving, with a notable shift towards authenticity over perfection. As AI tools generate immaculate emails in mere moments, there’s a growing skepticism towards perfectly polished text. This is where ‘Sinceerly,’ a uniquely spelled browser plugin, comes into play. It introduces subtle typos and imperfections to AI-generated writing, making it resonate more with the human touch.

While it may sound ironic, this plugin addresses a genuine concern: people are more likely to trust communication that feels natural and relatable, rather than flawlessly crafted.

WHEN ‘SINCERELY’ BECOMES ‘SINCEERLY’

The name itself hints at its purpose. ‘Sinceerly’ intentionally drops a letter to highlight its mission.

This innovative tool takes AI-generated emails and introduces slight alterations, avoiding chaos but simulating real human writing. A missing letter here, a quirky phrase there—these imperfections make all the difference.

After all, emails are often quick, a bit messy, and fundamentally human.

WHY PERFECT WRITING NOW FEELS OFF

There was a time when flawless grammar was ideal. Now, it can serve as a red flag.

AI-produced text carries a unique rhythm—too perfectly balanced and polished. While it reads fluidly, sometimes it feels excessively so.

This realization has prompted the creation of tools like ‘Sinceerly,’ which disrupts the pattern sufficiently to allow for more believable writing.

WHERE THE BUZZ STARTED

The concept gained traction when Ben Horwitz, a Harvard Business School student, developed what’s been referred to as an ‘anti-Grammarly’ tool named ‘Sinceerly.’ His intention was straightforward yet surprisingly relatable—AI-generated content had become so refined that it began to all resemble one another.

Reports highlighted how this tool rewrites text by introducing minor mistakes, ensuring it embodies a more human quality, especially in an era when impeccably written emails are frequently associated with AI.

MODES THAT MAKE IT EVEN MORE FUN

‘Sinceerly’ doesn’t just add random typos; it also alters the tone of the writing.

  • One mode maintains a polished appearance but includes a minor error or two.
  • Another mode leans towards a casual style, mimicking a quick note jotted between meetings.
  • There’s also a super short, straightforward tone—think of the classic “sent from my phone” vibe.

This specificity is what adds to its charm.

WHY PEOPLE ARE ACTUALLY USING THIS

There’s an increasing demand for authenticity in work-related emails and everyday communication.

Text generated by AI can often feel disconnected; small imperfections can create relatability.

Even prior to the existence of tools like ‘Sinceerly,’ individuals tended to manually edit AI-generated content to introduce typos, and this tool merely automates that instinct.

THE IRONY IS KIND OF PERFECT

Years spent relying on autocorrect and spellcheckers have trained us to sidestep mistakes.

Now, a plugin is intentionally bringing them back.

This creates a fascinating circular journey: utilizing AI, only to later leverage another tool to make that AI output appear more human.

In a realm where machines can produce near-perfect writing, it seems perfection is no longer the objective.

A typo here, a slightly awkward phrase there—these elements restore authenticity to our writing. And if that involves signing off as ‘Sinceerly,’ then so be it.

– Ends

Published By:

vaishnavi parashar

Published On:

Apr 27, 2026 12:37 IST

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