AI Writing Tools

Grammarly vs ChatGPT

Both are ai writing tools. The short answer: choose Grammarly if you are anyone writing emails, proposals and blog posts in English; choose ChatGPT if you are general business writing, brainstorming and analysis.

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Grammarly logo GrammarlyChatGPT logo ChatGPT
Best forAnyone writing emails, proposals and blog posts in EnglishGeneral business writing, brainstorming and analysis
Free planYesYes
PricingSee providerSee provider
Built for IndiaGlobalGlobal
CategoriesAI Writing ToolsAI Writing Tools, AI Assistants & Chatbots, AI Coding Assistants
Strengths
  • Works in browsers and apps
  • Free grammar checks
  • Tone suggestions
  • Very versatile
  • Free tier
  • Large ecosystem of custom GPTs
Watch out for
  • Generative features limited on free plan
  • Outputs need fact-checking
  • Advanced models and limits depend on plan
Visit GrammarlyVisit ChatGPT

Which should you choose?

Grammarly: AI writing assistant for grammar, clarity, tone and generative rewrites across apps.

ChatGPT: OpenAI's AI assistant for drafting, summarising, data analysis and image generation.

The best way to decide is to run the same week of real work through both — most offer a free plan or trial — and compare how long tasks take, what your team prefers, and the total cost for your number of users including renewal pricing.

Not sure either fits? See all ai writing tools compared.