AI Writing & Editing Free plan
Grammarly
AI writing assistant for grammar, clarity, tone, and rewrites wherever you type.
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Visit Grammarly → Last verified 2026-10-14
Pricing
| Plan | Price | Billing | Notes |
|---|---|---|---|
| Free | $0 | — | 100 AI prompts/month |
| Pro | $12/member/mo | billed annually ($144/yr) | $30/mo billed monthly; $60/quarter. 2,000 AI prompts/member/month |
| Enterprise | Custom | — | Via Superhuman Go; contact sales |
Free plan: Yes — Spelling/grammar, tone detection, 100 AI prompts per month.. Source: official pricing page.
Key features
- Full-sentence rewrites and tone adjustment (Pro)
- Fluency suggestions for non-native English writers
- Plagiarism and AI-generated text detection (Pro)
- Style guides and brand tones (1 each on Pro, unlimited on Enterprise)
- Enterprise: SSO, DLP, BYOK encryption
Coverage
Alternatives
- ProWritingAid — Grammar checker and in-depth style editor built for long-form and fiction writers.
- QuillBot — Paraphrasing tool with 10+ rewrite modes, plus grammar checking and AI detection.
Sources
- https://www.grammarly.com/plans
- https://support.grammarly.com/hc/en-us/articles/115000090011-How-much-does-Grammarly-Pro-cost
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