Grammarly
Grammarly Inc.
8
Overall Score / 10
ChatGPT
OpenAI
8
Overall Score / 10
Our Verdict
Choose Grammarly if:
- —You want grammar and style checking inline everywhere you write
- —You need plagiarism detection and brand tone consistency
- —You want writing improvement suggestions without switching context
Choose ChatGPT if:
- —You need to generate content from scratch, not just improve existing text
- —You want a general-purpose AI for coding, analysis, and creative tasks
- —You need image generation, file analysis, and custom GPTs
The biggest difference: Grammarly works inline across all apps and browsers as a writing companion; ChatGPT is a standalone chat interface for generating content from scratch
Side-by-Side Comparison
| Criteria | Grammarly | ChatGPT |
|---|---|---|
| Cheapest Paid Plan | $30/mo (Pro)Source: Grammarly Inc. pricing page → | $8/mo (Go)Source: OpenAI pricing page → |
| Free Tier | Yes Basic grammar and spelling corrections, tone detection, 100 AI prompts/month | Yes GPT-4o mini access, limited GPT-4o messages, limited DALL-E |
| Value for Money | 7 | 7 |
| Ease of Use | 10 | 10 |
| Feature Power | 7 | 9 |
| Setup Ease | 10 | 10 |
| Migration Ease | 9 | 9 |
| Transparency | 7 | 5 |
| Deployment | cloud | cloud |
| API Available | Yes | Yes |
| Platforms | Web, Mac, Windows, iOS, Android, Browser extensions | Web, Mac, Windows, iOS, Android |
| Compliance | SOC 2 Type II, GDPR, HIPAA (Enterprise) | SOC 2 Type II, Enterprise: data not used for training |
Feature Comparison
Feature Comparison Matrix
20 features compared · 19 differences
| Feature | Grammarly | ChatGPT |
|---|---|---|
| Core | ||
| Brand tones | Full | None |
| Browser extension | Full | None |
| Canvas (document editing) | None | Full |
| Clarity rewrites | Full | None |
| Code generation | None | Full |
| Desktop app | Full | None |
| File analysis | None | Full |
| Grammar and spelling | Full | None |
| Image generation (DALL-E) | None | Full |
| Memory | None | Full |
| Mobile keyboard | Full | None |
| Plagiarism detection (Pro) | Full | None |
| Style guides (Enterprise) | Full | None |
| Tone detection | Full | None |
| Web browsing | None | Full |
| Advanced | ||
| Advanced Voice mode | None | Full |
| Conversational AI | None | Full |
| Custom GPTs | None | Full |
| Generative AI (GrammarlyGO) | Full | None |
| Integrations | ||
| API Access | Full | Full |
Pricing Comparison
Grammarly Pricing
Basic grammar/spelling, tone detection, 100 AI prompts/month
Advanced rewrites, plagiarism detection, 2,000 AI prompts/month, brand tones
Unlimited AI prompts, SSO, SCIM, admin console, brand voice, analytics
ChatGPT Pricing
GPT-4o mini, limited GPT-4o, limited image generation
Lighter access to GPT-4, limited messages
GPT-4o, GPT-4, DALL-E, Advanced Voice, 50 messages/3hr on GPT-4
Unlimited GPT-4o, o1 pro mode, unlimited Advanced Voice
Everything in Plus, workspace, admin tools, higher limits
Who Should Choose Which?
Who should choose Grammarly
Best for
- Anyone wanting grammar and style checking everywhere they write
- Business teams needing consistent brand voice across communications
- Non-native English speakers improving their writing
Avoid if
- You need long-form content generation (Jasper, Copy.ai are better)
- You write primarily in languages other than English
- You want a privacy-first tool (Grammarly processes text in the cloud)
Who should choose ChatGPT
Best for
- General-purpose AI assistance across all tasks
- Non-technical users wanting the simplest AI experience
- Teams needing a shared AI workspace
Avoid if
- You need specialized writing features (formatting, templates, brand voice)
- You want AI with real-time web access on all queries
- You have strict data privacy requirements
Switching Guidance
Switching from Grammarly
Common triggers to leave:
- •Need long-form content generation
- •Privacy concerns about cloud processing
- •Need multi-language support
Potential blockers:
- •Habit of having Grammarly everywhere (browser, desktop, mobile)
- •Enterprise brand voice and style guide setup
- •Team analytics data
Switching from ChatGPT
Try Grammarly
Start free — no credit card required
Try ChatGPT
Start free — no credit card required