Signal-by-signal breakdown
| Signal | Copy.ai | Grammarly |
|---|---|---|
| Signal Score (overall) | 81.9 | 90.2 ✓ |
| Citation Score | 83 | 91 ✓ |
| Trust Score | 82 | 94 ✓ |
| Entity Strength | 83 | 93 ✓ |
| Coverage Score | 81 | 90 ✓ |
| Source Diversity | 80 | 88 ✓ |
| Consistency | 82 | 90 ✓ |
| Freshness | 84 ✓ | 80 |
| Expert Mentions | 76 | 86 ✓ |
Copy.ai- Starting price
- $36/mo
- Founded
- 2020
- HQ
- Memphis, Tennessee, USA
- Category rank
- #2
Grammarly- Starting price
- $12/mo
- Founded
- 2009
- HQ
- San Francisco, California, USA
- Category rank
- #1
Which should you choose?
Choose Copy.ai if…
- →Marketing teams producing go-to-market content
- →Writers needing many copy variations quickly
- →Ops teams automating repetitive content workflows
Choose Grammarly if…
- →Individuals and teams improving everyday writing
- →Organizations enforcing consistent tone and style
- →Writers who want editing plus generation in one place
Frequently asked questions
Which has better AI visibility, Copy.ai or Grammarly?
Grammarly has stronger AI visibility, with a Signal Score of 90.2 versus 81.9 for Copy.ai — a 8.3-point gap. AI engines cite and recommend Grammarly more consistently.
What is Copy.ai's AI visibility score?
Copy.ai has a Top Citation Signal Score of 81.9 out of 100 (Strong Signal), measured across ai writing tools buyer questions in AI answers.
What is Grammarly's AI visibility score?
Grammarly has a Top Citation Signal Score of 90.2 out of 100 (Signal Leader), measured across ai writing tools buyer questions in AI answers.
How is Copy.ai vs Grammarly measured for AI visibility?
Both brands are scored on Top Citation Signal's eight signals — citation, trust, entity strength, coverage, source diversity, consistency, freshness, and expert mentions — from real answers given by AI engines with live web search. The comparison is independent and not pay-to-play.
How does your brand score?
See exactly how AI engines cite and recommend your business — the same way we scored Copy.ai and Grammarly. Free to start with a Google sign-in.
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