Grammarly vs QuillBot
Which Writing AI tool is better in 2026?
Grammarly
AI writing assistant for individuals and teams.
QuillBot
AI writing suite with the world's most popular paraphraser, grammar checker, and more
Side-by-side
Grammarly leads on both fronts — more capital raised ($1.2B) and a lower entry price than QuillBot.
| Metric | Grammarly | QuillBot |
|---|---|---|
| Taglinei | AI writing assistant for individuals and teams. | AI writing suite with the world's most popular paraphraser, grammar checker, and more |
| Foundedi | 2009🏆 | 2017 |
| HQi | San Francisco, US | Chicago, United States |
| Employeesi | 1001-5000🏆 | — |
| Neuron scorei | 68 | 68 |
| Total fundingi | $1.2B🏆 | $4.3M |
| Latest roundi | Growth · May 2025 | Acquisition · Aug 2021 |
| Valuationi | $13B🏆 | — |
| Cheapest paid plani | Pro (Annual) · $12/mo🏆 | Pricing not disclosed |
| Free plani | ✓ Free | ✓ |
| Free triali | ✓ | ✗ |
| Top tier pricei | Pro (Monthly) · $30/mo | Pricing not disclosed |
| Pricing summaryi | 6 published plans | Free |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Grammarly and QuillBot.
| Capability | Grammarly | QuillBot |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✓ | ✗ |
| SDK languages | 1 (JavaScript) | — |
| Free plan | ✓ | ✓ |
| Free trial | ✓ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✓ | ✗ |
🟢 Strengths of Grammarly
- Has raised more capital ($1.2B vs $4.3M)
- Offers a free trial
- Lower starting price ($12/mo)
- More mature (2009)
🔵 Strengths of QuillBot
- Newer company (2017)
Which should you choose?
Choose Grammarly if price matters most — it starts at Free · From $12/mo, which is friendlier for teams watching burn. Both AI Writing tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Grammarly if you want the most established option — it has raised $1.2B, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
💸 Deals
7-day free trial of Grammarly Premium
Try Grammarly Premium free for 7 days — AI writing assistant used by 30M+ daily.
Frequently asked questions
Grammarly vs QuillBot — which is better?
It depends on your priority. Grammarly has raised more capital and is the more established option; QuillBot has broader feature depth. See the side-by-side table above.
Is Grammarly cheaper than QuillBot?
Yes — Grammarly's cheapest paid plan is Pro (Annual) · $12/mo, while QuillBot's is Free.
Do Grammarly and QuillBot offer free plans?
Grammarly: Yes, has a free plan. QuillBot: Yes, has a free plan.
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