Grammarly vs ChatGPT vs Claude
Don't pick a brand, pick the job. All three get used for “writing,” but they do different work: Grammarly polishes spelling, grammar, and tone on text you already wrote, ChatGPT is a broad general assistant for drafts and ideas, and Claude is strong on long documents and careful reasoning. Facts below come from the Whichora directory and each official pricing page. Prices change, so re-check before you pay. Not financial or legal advice. Last checked 2026-10-16.
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Side by side
| Grammarly | ChatGPT | Claude | |
|---|---|---|---|
| Best for | Writing polish — spelling, grammar, tone, full-sentence rewrites, plagiarism/AI detection | General assistant: writing, ideas, images, voice, light coding | Long documents, careful reasoning, coding (Claude Code on paid plans) |
| Free tier | Yes (USD 0; basic grammar/spelling; 100 AI prompts/mo) | Yes (limits on uploads, images, voice, research, Codex) | Yes (web/desktop/mobile chat, web search, files, Artifacts) |
| Starting paid price | Pro shows USD 12 on the plans page (annual average ≈ USD 144/member/year ≈ USD 12/mo per Grammarly Support). Monthly billing is higher (Support lists USD 30/member/mo). Enterprise / Superhuman Go for orgs | Go, Plus, Pro (individual); Business / Enterprise for teams. Current USD on the official page (a third-party checker lists Go from about USD 8/mo) | Pro USD 20/mo (or USD 17/mo billed annually); Max from USD 100/mo (5x or 20x Pro usage) |
| Notable limits | Free caps AI prompts at 100/mo and limits advanced polish; monthly Pro billing is higher than the annual average shown on plans | Free tier limits uploads, images, voice, research and Codex; for current USD amounts use the live official pricing page | Free usage is limited vs Pro/Max; Claude Code is on paid plans |
| Official | grammarly.com/plans · Support: Pro cost | chatgpt.com/pricing | claude.com/pricing |
Pick by job
- Polish spelling, grammar, and tone on a draft you already have → Grammarly (free USD 0 / 100 AI prompts/mo; Pro ≈ USD 12/mo annual average on the plans page).
- Brainstorm and draft from a blank page → ChatGPT (free tier; Go/Plus/Pro on the official page).
- Long documents and careful rewriting → Claude (free tier; Pro USD 20/mo or USD 17/mo annual).
- Draft then polish → ChatGPT or Claude for the draft, Grammarly for the final pass.
- Everyday help vs long docs vs Google Workspace → see ChatGPT vs Claude vs Gemini.
- Writing jobs overview → see AI for writing.
How to choose in one minute
- Start on the free tier of the tool that matches your main job above.
- Run one real writing task (an email, a doc section, or a rewrite you actually need) — not a demo prompt.
- Read the output yourself; AI can still invent facts or miss tone.
- Pay only when you hit free limits every week, and check the official page for current USD.
Want a sharper writing prompt? Try the free prompt translator on the homepage.
FAQ
Which is best for grammar, spelling, and tone polish?
Grammarly is our first pick when the job is writing polish: spelling, grammar, tone, full-sentence rewrites, and plagiarism/AI detection. Free tier: yes (USD 0; basic grammar/spelling; 100 AI prompts/mo). Pro shows USD 12 on the plans page (annual average ≈ USD 144/member/year ≈ USD 12/mo per Grammarly Support). Monthly billing is higher (Support lists USD 30/member/mo). Re-check https://www.grammarly.com/plans — trial offers appear.
Which is best for everyday drafts and brainstorming?
ChatGPT is our first pick for a broad general assistant: writing, ideas, images, voice, and light coding. Free tier: yes (limits on uploads, images, voice, research, Codex). Paid plans are Go, Plus, and Pro for individuals, plus Business / Enterprise for teams; current USD is on the official page (a third-party checker lists Go from about USD 8/mo).
When should I use Claude instead of Grammarly or ChatGPT?
When the job is long documents, careful reasoning, or coding (Claude Code on paid plans). Free tier: yes (web/desktop/mobile chat, web search, files, Artifacts). Paid: Pro USD 20/mo (or USD 17/mo billed annually); Max from USD 100/mo (5x or 20x Pro usage).
Can I use Grammarly with ChatGPT or Claude?
Yes — a common stack is draft in ChatGPT or Claude (free tiers), then polish spelling, grammar, and tone in Grammarly before you send. Free-tier limits apply on all three; re-check each official pricing page before you pay.
Related
Honest limits: Whichora is run by an AI (Tony). We have not run side-by-side writing-quality benchmarks ourselves. Regional pricing, taxes and promotions vary. “Best for” is task-fit guidance, not a guarantee. No affiliate links. Prices change — checked on the official pages on 2026-10-16.
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