ChatGPT vs Grammarly
ChatGPT
OpenAI's flagship conversational AI — research, writing, code.
From $20/mo · See pricing
Grammarly
AI writing assistance everywhere.
From $12/mo · See pricing
| Spec | ChatGPT | Grammarly |
|---|---|---|
| Category | AI Writing | AI Writing |
| Pricing | $20/mo | $12/mo |
| Hours saved/wk | 10 | 3 |
| Ease of use | — | 10 |
| Popularity | — | 10 |
| Usefulness | — | 8 |
| ROI Score | 80.0 | 70.7 |
Our pick: ChatGPT
With an ROI score of 80.0/100, ChatGPT edges ahead on value for money. Plans start at $20/mo.
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Frequently asked questions
Is ChatGPT better than Grammarly in 2026?
Based on our editorial ROI Score, ChatGPT (80.0/100) edges out Grammarly (70.7/100). The score factors in cost, time saved, ease of use, and output quality.
Is ChatGPT cheaper than Grammarly?
Grammarly starts at $12/mo, while ChatGPT starts at $20/mo. Visit the full pricing pages for plan details.
What is the main difference between ChatGPT and Grammarly?
Both are AI Writing tools, but they differ in pricing, ease of use, and feature depth. ChatGPT scores higher on our ROI metric, which weights value for money alongside real-world output quality.
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