kitio.aiGrammarly vs This Word Does Not Exist
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. This Word Does Not Exist is completely free, while Grammarly is freemium.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Grammar and spelling checks
- Tone detection
- Full-sentence rewrites
- Plagiarism checker
- Authorship tracking
- Invented words with definitions
- Example sentences
- Define your own word
- Shareable links
| Feature | Grammarly | This Word Does Not Exist |
|---|---|---|
| Best for | Grammar, tone and rewrite suggestions in almost every app you type in | GPT-2 experiment that invents English words with definitions |
| Category | Writing | Writing |
| Pricing model | Freemium | Free |
| Starting price | $30/mo | Free |
| Free plan | Yes | Yes, fully free |
| Made by | Superhuman Platform Inc. | Thomas Dimson |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
This Word Does Not Exist is completely free, while Grammarly is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- Spelling and grammar checks
- Tone detection
- 100 AI prompts
Pro
$30/mo
- Per member
- Full-sentence rewrites
- Tone adjustments
- Plagiarism and AI detection
Enterprise
Contact sales
- BYOK encryption
- Custom roles and permissions
- Data loss prevention
- Dedicated support
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Grammarly
- Works in nearly every app and website
- Free plan catches most basic errors
- Clear explanations for each suggestion
- Best features need the paid plan
- Can flatten a writer's personal style
- English only
This Word Does Not Exist
- Free and instant
- Source code available
- Good for naming and word games
- Output is unreviewed and can be off-color
- Built on an older GPT-2 model
- English only
Which one should you choose?
Choose Grammarly if you want:
- Works in nearly every app and website
- Free plan catches most basic errors
- Clear explanations for each suggestion
Watch out: best features need the paid plan.
Choose This Word Does Not Exist if you want:
- Free and instant
- Source code available
- Good for naming and word games
Watch out: output is unreviewed and can be off-color.
Grammarly vs This Word Does Not Exist FAQ
What is the difference between Grammarly and This Word Does Not Exist?
Grammarly: Grammar, tone and rewrite suggestions in almost every app you type in. This Word Does Not Exist: GPT-2 experiment that invents English words with definitions. Both are writing tools.
Is Grammarly or This Word Does Not Exist cheaper?
This Word Does Not Exist is completely free, while Grammarly is freemium.
Do Grammarly and This Word Does Not Exist have free plans?
Grammarly: Yes. This Word Does Not Exist: Yes, fully free.
Who makes Grammarly?
Grammarly is made by Superhuman Platform Inc., based in United States.
Who makes This Word Does Not Exist?
This Word Does Not Exist is made by Thomas Dimson.
Which should I choose, Grammarly or This Word Does Not Exist?
Choose Grammarly if you value works in nearly every app and website and free plan catches most basic errors. Choose This Word Does Not Exist if you value free and instant and source code available.