kitio.aiQuillBot 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 QuillBot is freemium.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Paraphraser with multiple modes
- Grammar checker
- Summarizer
- AI detector
- Citation generator
- Invented words with definitions
- Example sentences
- Define your own word
- Shareable links
| Feature | QuillBot | This Word Does Not Exist |
|---|---|---|
| Best for | Paraphraser with grammar checker, summarizer and citation tools | GPT-2 experiment that invents English words with definitions |
| Category | Writing | Writing |
| Pricing model | Freemium | Free |
| Starting price | $19.95/mo | Free |
| Free plan | Yes | Yes, fully free |
| Made by | Learneo | 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 QuillBot is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- 125-word paraphrases
- 2 paraphrasing modes
- Grammar checker
Premium
$19.95/mo
- Unlimited paraphrasing
- All modes
- Advanced grammar suggestions
Team
Contact sales
- Everything in Premium
- Multiple users, one purchase
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
QuillBot
- Many rewrite modes to choose from
- Generous free tier
- Several writing tools under one login
- Free plan limits word count per paraphrase
- Rewrites can change the meaning
- Heavy use raises academic integrity questions
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 QuillBot if you want:
- Many rewrite modes to choose from
- Generous free tier
- Several writing tools under one login
Watch out: free plan limits word count per paraphrase.
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.
QuillBot vs This Word Does Not Exist FAQ
What is the difference between QuillBot and This Word Does Not Exist?
QuillBot: Paraphraser with grammar checker, summarizer and citation tools. This Word Does Not Exist: GPT-2 experiment that invents English words with definitions. Both are writing tools.
Is QuillBot or This Word Does Not Exist cheaper?
This Word Does Not Exist is completely free, while QuillBot is freemium.
Do QuillBot and This Word Does Not Exist have free plans?
QuillBot: Yes. This Word Does Not Exist: Yes, fully free.
Who makes QuillBot?
QuillBot is made by Learneo, 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, QuillBot or This Word Does Not Exist?
Choose QuillBot if you value many rewrite modes to choose from and generous free tier. Choose This Word Does Not Exist if you value free and instant and source code available.