Grammarly free tier: quotas, limits and gotchas
Grammarly Free Tier
Last verified: 2026-09-21
Models and quotas
| Model | Quota | Window | Notes |
|---|---|---|---|
| Grammarly editing engine | No limit on spell and grammar checking | — | Basic editing is unlimited, but AI-powered features such as Image generation have limitations. |
What you get for free
| Feature | Free tier | Notes |
|---|---|---|
| Spell and grammar check | Unlimited | The most practical part of the free version |
| Sentiment analysis | Available | Sounds friendly. |
| AI generation/rewriting | 100 times per month | This is the main limitation of the free version |
| The SaaS pricing comparison website has been translated from Traditional Chinese to English, providing a clear and concise comparison of various products, including their pricing, features, and limitations, such as Image generation, Video generation, Chatbots, Coding, Writing, Productivity, Search & research, Music & voice, and AI agents, as well as details on Free quota, Quota, Quota reset, Commercial use, and Watermark. | No | Requires Pro |
| Plagiarism detection | No | Requires Pro, suitable for those who need to write papers |
| Please provide the Traditional Chinese text that needs to be translated into English. I will ensure that the translation is natural, concise, and accurate, following the provided guidelines for fixed translations. | Not supported | **Grammarly only supports English** |
Limits at a glance
- Quota reset: Resets monthly
- Commercial use: Allowed
- Conditions: Registration is required; it is recommended to install the browser extension to fully utilize its features.
Watch out for this
The most common misconception is that it can proofread Chinese - **it only handles English**. The free version's spell and grammar check is actually enough for daily use, what really forces you to upgrade is the "100 times AI generation per month" and the sentence rewriting function being locked. If you need plagiarism detection for writing papers, you definitely need Pro.
When the free quota is insufficient, how much does it cost to pay for it?
| Plan | pricing | Description |
|---|---|---|
| Pro | US$12 / mo | Monthly 2,000 times AI generation/person, including sentence rewriting, tone adjustment, plagiarism detection, and AI-generated content detection, with unlimited personalized suggestions and priority customer service; a 7-day free trial is available. The official website indicates that there is a yearly payment discount, but the actual fee rate is not disclosed (Checked on 2026-07-31). |
| Enterprise | Official quote (upon inquiry) | Custom quotes are available upon request. AI generation is unlimited, with features including BYOK encryption, SAML SSO/SCIM, data breach protection, and customizable role permissions (Checked on 2026-07-31 from official website). |
Checked 2026-09-21
Information for Taiwanese users
- Payment method:Payable; Credit card
- Chinese support: none
- Available platforms:web
Related
Sources: Grammarly official pricing page (as of 2026-07-31)
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