Grammarly vs Plus AI
Which Productivity AI tool is better in 2026?
Grammarly
AI writing assistant for individuals and teams.
Plus AI
AI presentation maker for Google Slides and PowerPoint
Side-by-side
Grammarly is the more established option (raised $1.2B), but Plus AI is cheaper to start.
| Metric | Grammarly | Plus AI |
|---|---|---|
| Taglinei | AI writing assistant for individuals and teams. | AI presentation maker for Google Slides and PowerPoint |
| Foundedi | 2009🏆 | 2021 |
| HQi | San Francisco, US | Seattle, US |
| Employeesi | 1001-5000 | 11-50🏆 |
| Neuron scorei | 69🏆 | 54 |
| Total fundingi | $1.2B🏆 | $8M |
| Latest roundi | Growth · May 2025 | Seed · Apr 2023 |
| Valuationi | $13B🏆 | — |
| Cheapest paid plani | Pro (Annual) · $12/mo | From $10/mo🏆 |
| Free plani | ✓ Free | ✗ |
| Free triali | ✓ | ✓ |
| Top tier pricei | Pro (Monthly) · $30/mo | Pricing not disclosed |
| Pricing summaryi | 6 published plans | Free trial · From $10/mo |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Grammarly and Plus AI.
| Capability | Grammarly | Plus AI |
|---|---|---|
| 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 $8M)
- Higher Neuron score (69 vs 54)
- Offers a free plan
- More mature (2009)
🔵 Strengths of Plus AI
- Lower starting price ($10/mo)
- Newer company (2021)
Which should you choose?
Choose Plus AI if price matters most — it starts at Free trial · From $10/mo, which is friendlier for teams watching burn. Both AI Productivity 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.
Plus AI for Slides — 7-day free trial
Try Plus AI free for 7 days — generate full Google Slides and PowerPoint decks from a prompt or document.
Terms: No card required for trial start.
Frequently asked questions
Grammarly vs Plus AI — which is better?
It depends on your priority. Grammarly has raised more capital and is the more established option; Plus AI is cheaper to start. See the side-by-side table above.
Is Grammarly cheaper than Plus AI?
No — Plus AI's cheapest paid plan is Free trial · From $10/mo, while Grammarly's is Pro (Annual) · $12/mo.
Do Grammarly and Plus AI offer free plans?
Grammarly: Yes, has a free plan. Plus AI: Free trial only.
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