Grammarly
AI-powered writing assistant for grammar and style
ChatGPT
Conversational AI assistant by OpenAI
Grammarly vs ChatGPT
A detailed side-by-side comparison to help you choose the best writing AI tool for your needs in 2026.
Quick Verdict
$0 - $15/mo
Grammarly and ChatGPT are closely matched. Your choice depends on specific needs and preferences.
$0 - $200/mo
Feature Comparison
| Feature | Grammarly | ChatGPT |
|---|---|---|
| Grammar and spelling correction | Yes | No |
| Tone detection | Yes | No |
| Plagiarism detection | Yes | No |
| Style suggestions | Yes | No |
| Generative AI writing | Yes | No |
| Brand tones | Yes | No |
| Works everywhere (browser, desktop, mobile) | Yes | No |
| Team analytics | Yes | No |
| Conversational AI with memory | No | Yes |
| File and image upload | No | Yes |
| Web browsing | No | Yes |
| Code interpreter | No | Yes |
| DALL-E image generation | No | Yes |
| Custom GPTs | No | Yes |
| Voice mode | No | Yes |
| Canvas for editing | No | Yes |
Pricing Comparison
Grammarly
AI-powered writing assistant for grammar and style
Basic grammar and spelling checks
ChatGPT
Conversational AI assistant by OpenAI
GPT-4o mini with usage limits
Pros & Cons
Grammarly Pros
- Industry-leading grammar checking
- Works across all platforms
- Excellent browser extension
- Clear and actionable suggestions
Grammarly Cons
- Premium is needed for best features
- Generative AI features lag behind ChatGPT
- Can be overly prescriptive
- Privacy concerns with keystroke monitoring
ChatGPT Pros
- Extremely versatile
- Large ecosystem of plugins and GPTs
- Excellent at following complex instructions
- Frequent model updates
ChatGPT Cons
- Can hallucinate facts
- Free tier has usage caps
- Privacy concerns for sensitive data
- Occasional downtime during peak usage
Which One Is Right for You?
Who Should Choose Grammarly?
AI-powered writing assistant for grammar and style
- Users who want a free tier to get started
- Budget-conscious individuals and small teams
- Power users who need a comprehensive feature set
- Users who need versatility across multiple use cases
Who Should Choose ChatGPT?
Conversational AI assistant by OpenAI
- Users who want a free tier to get started
- Professionals and small-to-medium teams
- Power users who need a comprehensive feature set
- Users who need versatility across multiple use cases
- General-purpose users who want an all-in-one AI assistant
Frequently Asked Questions
Is Grammarly better than ChatGPT?
It depends on your needs. Grammarly (rated 4.4/5) excels at industry-leading grammar checking, while ChatGPT (rated 4.5/5) is known for extremely versatile. Both are strong writing tools with different strengths.
Which is cheaper, Grammarly or ChatGPT?
Grammarly pricing is $0 - $15/mo (free tier available). ChatGPT pricing is $0 - $200/mo (free tier available). Both offer free tiers to get started.
Can I use Grammarly and ChatGPT together?
Yes, many users combine Grammarly and ChatGPT for different tasks. Grammarly may be better for some writing workflows while ChatGPT excels at others. Using both can give you the best of each tool's strengths.
What are the main differences between Grammarly and ChatGPT?
Key differences include: Grammarly offers Grammar and spelling correction and Tone detection, while ChatGPT provides Conversational AI with memory and File and image upload. Grammarly is priced at $0 - $15/mo and ChatGPT at $0 - $200/mo.
Which has better features, Grammarly or ChatGPT?
Grammarly offers 8 features including Grammar and spelling correction and Tone detection. ChatGPT offers 8 features including Conversational AI with memory and File and image upload. The "better" feature set depends on which capabilities matter most for your use case.
Related Comparisons
People Also Compare
Explore more writing AI tool comparisons and alternatives