ChatGPT vs Grammarly
Compared across 5 shared tasks, including write and edit better.
Short verdict
In the 5 TaskRanking use cases where both appear, ChatGPT ranks higher in 3 and Grammarly in 2. Average rank across these: ChatGPT 3.0, Grammarly 3.4 (1 = best).
Computed from our published rubric rankings, not paid placement.
Prices from vendor pages; Unverified and Contact sales are shown as-is.
Side by side
| Attribute | ChatGPT | Grammarly |
|---|---|---|
| Starting price | Go $8/mo (Plus $20/mo) pricing source · checked 2026-10-14 | Pro $12/mo pricing source · checked 2026-10-14 |
| Free tier | yes | yes |
| Pricing model | Free tier | Free tier |
| What it is | General AI assistant by OpenAI | AI writing assistant |
| Use cases ranked in | 27 | 8 |
| Shared use cases won | 3 of 5 | 2 of 5 |
| Where it ranks (rank of 5) |
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Head to head on shared use cases
| Shared use case | ChatGPT | Grammarly | Higher |
|---|---|---|---|
| Write and edit better | #5 | #1 | Grammarly |
| Write better sales emails | #4 | #2 | Grammarly |
| Write inclusive job descriptions | #2 | #4 | ChatGPT |
| Translate documents | #2 | #5 | ChatGPT |
| Write a resume and find jobs | #2 | #5 | ChatGPT |
Best for
Best for: ChatGPT
- Write inclusive job descriptions (#2 vs #4)
- Translate documents (#2 vs #5)
- Write a resume and find jobs (#2 vs #5)
- Start and register a business (#1; the other isn’t ranked here)
Best for: Grammarly
- Write and edit better (#1 vs #5)
- Write better sales emails (#2 vs #4)
- AI writing and plagiarism detection (#4; the other isn’t ranked here)
- Grow on LinkedIn (#5; the other isn’t ranked here)
FAQ
Is ChatGPT or Grammarly better?
Across the 5 TaskRanking use cases where both are ranked, ChatGPT places higher in 3 and the other in 2. Best pick depends on the task; see the shared use cases table.
Is ChatGPT or Grammarly cheaper?
ChatGPT: paid from Go $8/mo (Plus $20/mo) (free tier: yes; checked 2026-10-14). Grammarly: paid from Pro $12/mo (free tier: yes; checked 2026-10-14). Prices come from each vendor's own pricing page.
Do ChatGPT and Grammarly have free plans?
ChatGPT: yes. Grammarly: yes. As listed on vendor pricing pages, last checked 2026-10-14.
Which tasks do both ChatGPT and Grammarly cover?
Both are ranked for: Write and edit better; Write better sales emails; Write inclusive job descriptions; Translate documents; Write a resume and find jobs.