Grammarly vs Copy.ai

A side-by-side comparison of Grammarly and Copy.ai — ratings, pricing, strengths, weaknesses and who each one is best for.

Updated 2026

Criteria	Grammarly Writing tool	Copy.ai Writing tool
Rating	4.6	4.2
Pricing	Free: Free Pro: $30/member/mo Enterprise: Custom	Chat: $29/mo Growth: $12,000/yr Enterprise: Custom
Pros	✓ Accurate grammar ✓ Works everywhere ✓ Real-time suggestions ✓ Enterprise style guides	✓ Marketing templates ✓ GTM workflows ✓ Multilingual ✓ Batch
Cons	✗ English-first ✗ Advanced features paid ✗ Sometimes over-corrects	✗ Pricey ✗ Needs fact-checking ✗ Average Chinese
Best for	English writing, Email polishing, Academic papers, Team standards	Marketing copy, Sales outreach, Blogs, GTM
Platforms	Web, Desktop, iOS, Android	Web, API

Our verdict

Grammarly edges ahead on our overall rating (4.6 vs 4.2 — a 0.4-point lead), but both are capable choices.

On price, Grammarly starts at $30/member/mo (Pro) and Copy.ai starts at $29/mo (Chat).

Choose Grammarly if you want English writing, Email polishing. Choose Copy.ai if you need Marketing copy, Sales outreach.

Read the full Grammarly review →Read the full Copy.ai review →

This verdict comes from comparing documented fields — rating, price tiers, best-for, platforms — not from running both tools on the same task. The rating is editorial judgement, not user reviews.

FAQ

Is Grammarly better than Copy.ai?

In our review Grammarly rates 4.6/5 and Copy.ai rates 4.2/5. Grammarly is best for English writing, Email polishing, while Copy.ai suits Marketing copy, Sales outreach — so the better choice depends on your priorities.

What is the difference between Grammarly and Copy.ai?

Grammarly: An AI writing assistant for grammar correction, polishing and generative rewrites. Copy.ai: An AI writing and GTM workflow platform for marketing and sales teams.

Which is cheaper, Grammarly or Copy.ai?

Grammarly starts at Free (Free); Copy.ai starts at $29/mo (Chat).