What is the difference between Grammarly and AI Writer?

Grammarly focuses on Grammar and spell check and is freemium, while AI Writer specializes in Article generation from headlines and is paid. Both are AI Writing tools.

Is Grammarly or AI Writer better?

It depends on your needs. Grammarly excels at Works across all platforms, while AI Writer is known for Automatic source citations. Compare their features above to decide which fits your workflow.

Grammarly vs AI Writer

AI Writing tools comparison · Updated 2026

Choosing between Grammarly and AI Writer? Both are popular AI Writing tools. Grammarly starts at Freemium and focuses on Grammar and spell check. AI Writer starts at From $29/mo and specializes in Article generation from headlines. Here's a detailed side-by-side comparison to help you decide.

At a Glance

	Grammarly	AI Writer
Category	AI Writing	AI Writing
Pricing	freemium	paid
Starting Price	Freemium	From $29/mo
Best For	grammar, writing-assistant, proofreading	article-generation, citations, research
Features	6 listed	5 listed

Grammarly

AI writing assistant for grammar, clarity, tone, and style improvements.

AI Writing freemium

Visit Grammarly → Alternatives

AI Writer

AI article generator with source citations and verifiable content creation.

AI Writing paid

Visit AI Writer → Alternatives

Feature Comparison

Grammarly	AI Writer
✓ Grammar and spell check	✓ Article generation from headlines
✓ Tone detection	✓ Source citation
✓ Plagiarism checker	✓ SEO editor
✓ Style suggestions	✓ Text rewording
✓ Browser extension	✓ Sub-topic discovery
✓ Generative AI writing	—

Pricing Comparison

Grammarly

freemium

Free basic grammar checking. Premium $12/mo. Business $15/member/mo.

AI Writer

paid

Starting at $29/mo

Basic $29/mo. Standard $49/mo. Power $375/mo. Annual discounts.

Pros & Cons

Grammarly

Pros

+ Works across all platforms
+ Excellent grammar detection
+ Intuitive interface
+ Real-time suggestions

Cons

− Premium is expensive for individuals
− Occasional false positives
− Limited free tier features

AI Writer

Pros

+ Automatic source citations
+ Verifiable content
+ Good sub-topic suggestions
+ Clean interface

Cons

− Citations not always accurate
− Limited content types
− Higher-tier plans expensive
− Smaller feature set than competitors

The Verdict

Both Grammarly and AI Writer are strong AI Writing tools. Grammarly stands out for Works across all platforms, making it ideal if that's your priority. AI Writer excels at Automatic source citations, which may be more important for your workflow. Price-wise, Grammarly is freemium while AI Writer is paid, so budget may also factor in.