Grammarly Premium costs $12/month (annual) — here's a clear-eyed look at what Free vs Premium actually offers and whether the upgrade is worth it in 2026.
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Premium (Annual): $12/month (billed $144/year) · ⭐⭐⭐⭐ (4/5)
| Feature | Free | Premium | Business | |---------|------|---------|----------| | Grammar, spelling, punctuation | ✅ | ✅ | ✅ | | Conciseness suggestions | ❌ | ✅ | ✅ | | Clarity and engagement rewrites | ❌ | ✅ | ✅ | | Tone detection | ❌ | ✅ | ✅ | | Vocabulary suggestions | ❌ | ✅ | ✅ | | Plagiarism detection | ❌ | ✅ | ✅ | | Full-sentence rewrites | ❌ | ✅ | ✅ | | Grammarly Go (AI writing) | Limited | ✅ | ✅ | | Style guide enforcement | ❌ | ❌ | ✅ | | Team management dashboard | ❌ | ❌ | ✅ | | SAML SSO | ❌ | ❌ | ✅ |
| Plan | Monthly | Annual | Best For | |------|---------|--------|----------| | Free | $0 | $0 | Basic grammar checking | | Premium | $30/mo | $12/mo ($144/yr) | Individual writers | | Business | $15/member/mo | varies | Teams |
Grammarly occupies a unique market position in 2026 — it's no longer just a grammar checker. With Grammarly Go (AI-powered writing assistance) deeply integrated into the Premium and Business tiers, it's evolved into a comprehensive writing assistant that competes with ChatGPT and Claude for day-to-day writing tasks.
The free tier handles the basics well: grammar, spelling, and punctuation corrections across browser extensions, the web editor, and desktop apps. For occasional writers who just want a safety net, free is entirely adequate.
The jump from free to Premium is substantial and the pricing discrepancy between monthly and annual billing is dramatic — $30/month vs $12/month is a 60% difference. This is a clear push toward annual commitment, which is worth being aware of when budgeting.
What Premium actually adds: clarity and engagement rewrites go beyond fixing errors to actively improving sentence structure and readability. Tone detection helps match your writing's emotional register to your intent. Plagiarism detection compares text against billions of web pages — genuinely valuable for academic writers, content professionals, and anyone publishing online. The full-sentence rewrite suggestions in Premium are the most time-saving feature for heavy writers.
Grammarly Go's AI assistant integrates prompt-based writing, tone adjustment, and content generation directly into documents. It's useful but not so differentiated from other AI tools that it alone justifies the subscription — the value is in the combination with Grammarly's traditional suggestion engine.
Grammarly Premium is worth it for professionals who write frequently and value quality — content marketers, editors, academics, business writers, and anyone communicating in a second language. The annual plan at $12/month is the only pricing tier worth considering; the $30/month monthly rate is difficult to justify. If you write casually and just need basic error correction, the free tier handles it.
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