Grammarly Premium vs ChatGPT Plus for Writing: Which to Keep?

If you are paying for both Grammarly Premium and an AI assistant like ChatGPT, you are likely over-subscribed. Here is the honest comparison.

What Each Does

Grammarly Premium ($144/year): - Real-time inline grammar and spelling correction - Tone detector and consistency checking - Browser extension works everywhere - Plagiarism detection - Works in email, Google Docs, Word, browser fields

ChatGPT Plus ($240/year): - Can rewrite and improve entire documents - Generate content from scratch - Explain grammar rules - Edit for tone, clarity, and style - But: requires copy-pasting, not inline

The Overlap ChatGPT can do everything Grammarly does — and more — if you paste text into it. But Grammarly works inline in every text field automatically.

The Decision Framework **Keep Grammarly, drop ChatGPT writing use:** If you mainly need automatic correction while writing emails and documents. **Keep ChatGPT, drop Grammarly:** If you frequently rewrite whole sections or generate content — Grammarly's inline correction is the only thing you'd miss. **Keep both:** Only if you write professionally and the combined $32/month represents a small fraction of your income.

The Emerging Answer Googles built-in AI writing tools in Gmail and Docs, and Microsoft Copilot in Word, are making dedicated writing subscriptions less necessary for many users — especially if you already pay for Google Workspace or Microsoft 365.