Cognition Devin vs Grammarly
Cognition Devin
Cognition's autonomous AI software engineer for production work.
From $500/mo · See pricing
Grammarly
AI writing assistance everywhere.
From $12/mo · See pricing
| Spec | Cognition Devin | Grammarly |
|---|---|---|
| Category | AI Agents | AI Writing |
| Pricing | $500/mo | $12/mo |
| Hours saved/wk | 10 | 3 |
| Ease of use | — | 10 |
| Popularity | — | 10 |
| Usefulness | — | 8 |
| ROI Score | 60.0 | 70.7 |
Our pick: Grammarly
With an ROI score of 70.7/100, Grammarly edges ahead on value for money. Plans start at $12/mo.
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Frequently asked questions
Is Cognition Devin better than Grammarly in 2026?
Based on our editorial ROI Score, Grammarly (70.7/100) edges out Cognition Devin (60.0/100). The score factors in cost, time saved, ease of use, and output quality.
Is Cognition Devin cheaper than Grammarly?
Grammarly starts at $12/mo, while Cognition Devin starts at $500/mo. Visit the full pricing pages for plan details.
What is the main difference between Cognition Devin and Grammarly?
Cognition Devin is a AI Agents tool while Grammarly falls under AI Writing. They serve different primary use cases but are frequently compared by teams evaluating AI tool stacks.
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