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AI材料星 vs Grammarly
A factual side-by-side comparison of AI材料星 and Grammarly. We compare pricing, categories, free tiers and official websites — no invented scores.
Updated 2026-10-22
Quick take
AI材料星 is Paid; Grammarly is Freemium. If you want to start free, check the free or freemium option first; otherwise compare the categories and taglines below.
| Pricing | Paid | Freemium |
|---|---|---|
| Categories | Official Documents / Writing | Writing / Productivity |
| Best for | Writes 10k-character official drafts in 90 seconds | The household grammar and tone assistant |
| Free tier | No — paid only | Yes — free or freemium |
| Website | www.cailiaoxing.com | www.grammarly.com |