ChatGPT vs Grammarly

A detailed side-by-side comparison to help you choose the right tool.

The AI assistant that started it all — versatile, powerful, and constantly evolving.

AI writing assistant that catches errors, improves clarity, and helps you write with confidence.

Rating

4.8

4.5

Pricing Modelfreemiumfreemium

Starting Price$0/mo$0/mo

Extremely versatile — handles writing, coding, analysis, and creative tasks

Free tier available with GPT-3.5

Custom GPTs allow specialized use cases

Regular updates with new features and capabilities

Large plugin and integration ecosystem

Excellent at following complex, multi-step instructions

Works everywhere — browser extension covers Gmail, Slack, Docs, and 500+ platforms

Tone detection helps you understand how your writing will be perceived

Free tier catches more grammar issues than most paid competitors

Style Guide feature enforces consistent writing across entire organizations

30+ million users means the AI has been trained on massive amounts of feedback

GPT-4 requires a paid subscription ($20/mo)

Can produce confident-sounding but incorrect answers

Knowledge cutoff means it may miss recent events

Rate limits on GPT-4 usage even for paying users

Privacy concerns with data used for training

Premium subscription at $12/month feels steep for a grammar checker

GrammarlyGO generative features lag behind dedicated AI writers

Suggestions can be overly conservative, stripping personality from casual writing

Business plan at $15/member/month is expensive for large teams