Grammarly rate limits, context window & usage caps (2026)
Grammarly rate limits and usage caps. Writing corrections per month, plagiarism checks and tone detection - Free and Premium plans compared.
Grammarly usage limits by plan
| Ai Prompts | 250 prompts/month | Basic rewriting and suggestions |
| Grammar Checks | Unlimited | Basic grammar and spelling |
| Plagiarism Checks | Not available | Not available on free |
| Devices | Unlimited | Chrome, Edge, desktop apps |
| Ai Prompts | 1000 prompts/month | Advanced rewriting, tone |
| Plagiarism Checks | 100 checks/month | Checks against 16B+ web pages |
| Style Guides | Unlimited | Custom style guides for brand |
| Team Seats | Unlimited | Per user billing |
What happens when you hit Grammarly's limits?
Check the reset window - most limits refresh within 1–60 minutes
Reload or try again after the reset window passes
If you hit limits regularly, upgrade your plan to increase caps
Grammarly limit reset schedule
⚡
Per minute
API RPM limits - reset every 60 seconds
🕐
Per hour
Short rolling windows for message quotas
⏱
Per 5 hours
Common for consumer plan message limits
📅
Per day / month
Image gen credits and file storage caps
Exact reset period per limit type is shown in the "Notes" column of the plan table above. Grammarly uses rolling-window resets - quotas refresh continuously, not at a fixed midnight cutoff.
More Grammarly intelligence
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Limits sourced from Grammarly's official documentation. Updated when plan changes are announced.
Grammarly limits - frequently asked questions
What is the Grammarly message limit?
Grammarly message limits vary by plan - see the full breakdown by tier in the table above.
Does Grammarly have a file upload limit?
Yes, Grammarly enforces file upload limits that vary by plan. See the detailed breakdown above.
When do Grammarly limits reset?
Reset periods vary by limit type - many Grammarly limits reset on a rolling window (e.g., per 5 hours or per 24 hours). Check the notes column in the table above for specific reset schedules.
What happens when you hit Grammarly's rate limit?
Grammarly will temporarily block new requests when you exceed your plan's limits. You may see an in-app message or receive an HTTP 429 response. Wait for the reset window to pass or upgrade your plan.