Grammarly occupies an odd corner of the AI writing world: it is the tool almost everyone has tried, yet almost no one can tell you what it costs. That confusion exists for a reason. The free tier is genuinely useful, Grammarly advertises different prices on different pages, and third-party review sites frequently quote a number that has nothing to do with what you will actually pay. Here is the version we can stand behind as of September 2026: there is a real free tier covering spelling, punctuation, and basic grammar, and there is a Premium plan that costs about $12/month when billed annually. This guide explains what each tier actually does, who should pay for Premium, and who is better off staying free.
The Short Answer: Free vs Premium
Before the numbers, the framing matters more. Grammarly is an editing assistant, not an AI generator. It does not write your emails, articles, or ad copy from a blank page. It checks, corrects, and improves text you have already written. That single fact drives the entire pricing decision, and most of the "is it worth it" arguments online miss it.
The free tier handles the mechanical layer: spelling errors, punctuation, and basic grammar mistakes. For a native English speaker writing internal notes, social posts, and casual email, that layer genuinely covers most of the job. You will rarely feel the absence of Premium for that kind of writing.
Premium adds the layer people are actually missing when they say their writing feels "off": tone detection and adjustments, clarity rewrites, and style and vocabulary suggestions that rework whole sentences instead of flagging a comma. On annual billing it runs about $12/month. On the month-to-month rate (around $30/month) it is much harder to justify — that price only makes sense if you need it immediately and want the option to cancel next month.
Grammarly Plans: Free vs Premium
| Plan | Price | What It Covers | Who It Is For |
|---|---|---|---|
| Free | $0 | Spelling, punctuation, and basic grammar; browser extension, desktop app, and Docs/Gmail plugin | Casual writing, native speakers, internal notes and messages |
| Premium | ~$12/mo (annual billing); around $30/mo month-to-month | Everything in Free, plus tone detection and adjustments, clarity rewrites, and full-sentence style and vocabulary suggestions | Anyone whose writing is read by clients, bosses, admissions officers, graders, or a public audience |
Prices verified September 2026. Annual billing works out to roughly $12/month, and Grammarly frequently runs first-year discounts, so check the live price on grammarly.com before you pay. The month-to-month rate is roughly $30/month — fine if you want to cancel quickly, wasteful if you plan to keep the tool for a year.
Is Grammarly Free Actually Enough?
Honest answer: for a large share of users, yes. If English is your first language and most of what you produce is internal, social, or chat-level, the free tier catches the mistakes that would actually embarrass you. Misspellings, comma splices, subject-verb slips, doubled words — the free tier handles all of those without asking for a card.
Premium starts earning its money the moment your writing is judged by someone who does not already know what you meant. An email to a prospective client. A proposal. A university essay. A job application. A published post with your name on it. In our 30-day test on this site (full Grammarly review) that was exactly the dividing line we kept landing on: if every message you send represents your work, roughly $12/month is cheap insurance against the one typo that makes you look careless. If you write five thousand-plus words a week of externally visible text, Premium is close to a no-brainer at that price.
The second group that should treat Premium as near-essential is second-language English writers. The fluency and word-choice suggestions in Premium do real work the free tier cannot: the free tier tells you a sentence is grammatically wrong, while Premium will often hand you a cleaner, more natural way to say the same thing. That is the difference between "technically correct" and "reads like a native wrote it."
One more honest note on the free tier's limits: it can feel inconsistent. Grammarly Free will sometimes flag a genuinely awkward sentence as fine, then suggest a change on something that was already good. That is not a bug in your usage — free simply runs a lighter set of checks. If you have ever felt that Grammarly "misses things," what you were probably hitting was the free tier's ceiling, not the tool being broken. That experience, more than any feature list, is the signal that Premium is the tier you actually want.
Grammarly Is an Editor, Not a Generator
This is the most common misunderstanding we see, so it is worth being blunt. A lot of people search for "Grammarly AI writing" expecting a tool that writes for them. It does not. Grammarly's AI suggestions rewrite and improve your own sentences; they do not produce a first draft out of thin air. If you need to draft from scratch, Grammarly is the wrong tool and no paid tier fixes that.
The distinction also changes what you should compare it against. We benchmark AI writing tools on this site, and Grammarly deliberately does not appear in that benchmark: it is an editing assistant, not a generator, and scoring it on raw generation would misrepresent what it does. What the benchmark does show is that the free tiers of general chatbots like Claude and ChatGPT already produce better raw prose than the paid dedicated writing tools we tested. So if your real problem is a blank page, the tool you want is a chatbot, not Grammarly. If your real problem is a finished draft full of small errors that reads slightly flat, that is Grammarly's job — and the free tier may already do most of it. Our longer verdict on whether Premium pays for itself lives in Is Grammarly Premium Worth It in 2026?
How Grammarly Fits With Other Tools
Because Grammarly edits instead of generating, it pairs naturally with the rest of a writing stack rather than competing with it:
- Generation: draft with a chatbot — Claude, ChatGPT, or Gemini — then run Grammarly over the output. Grammarly never needs to write the first sentence.
- Rewriting and paraphrasing: that is QuillBot's lane. Grammarly flags what is wrong in your sentence; QuillBot hands you alternative phrasings of the same idea. The tools overlap less than people assume — see Grammarly vs QuillBot for when you need each one.
- Tone for customer-facing copy: if you send a lot of email or marketing text, Premium's tone suggestions act as a second pass over drafts you generated or wrote elsewhere.
- Structured workflows: if you use a dedicated writing tool for templates and brand voice (we compared Grammarly against Jasper here), Grammarly slots in at the end as the proofreading layer.
The pattern is consistent: Grammarly sits at the end of the writing pipeline, not the start. Budget for it after you have sorted out generation and rewriting, not instead of them.
Who Should Pay for Premium — and Who Should Skip
Pay for Premium if:
- Your writing is read by clients, customers, or a public audience every day — sales, consulting, freelancing, marketing.
- English is not your first language and you want fluency help, not just error flags.
- Your grade or your job application depends on clear, error-free writing.
- You consistently write more than a few thousand externally visible words a week; at ~$12/mo annual, it is the cheapest quality upgrade most professionals can buy.
Skip Premium if:
- You are a native speaker writing mostly internal notes and casual messages — the free tier covers you.
- Your actual gap is generating a first draft from a blank page — that is a chatbot purchase, and paid Grammarly will not fix it.
- You were about to pay the monthly ~$30 rate without a reason to cancel soon — go annual or go free.
Start with the free tier
Install Grammarly Free, write normally for a week, and see how often you wish it had caught more. If the answer is "constantly," Premium's annual ~$12/mo is the upgrade.
Try Grammarly →Read the Worth-It Verdict →Frequently Asked Questions
How much does Grammarly Premium cost?
Roughly $12/month when billed annually; the month-to-month rate (around $30/mo) is much higher. A genuinely free tier also exists and covers spelling, punctuation, and basic grammar.
Is Grammarly Premium worth it?
For professionals who write a lot (roughly 5,000+ words a week) or whose writing is externally judged by clients, bosses, or graders, the ~$12/mo annual Premium is worth it. For light or casual writing, the free tier usually covers the job.
What's the difference between Grammarly free and Premium?
Free covers spelling, punctuation, and basic grammar. Premium adds tone detection and adjustments, clarity rewrites, and style and vocabulary suggestions that can rewrite whole sentences.
Does Grammarly do AI writing?
No. Grammarly is an editing assistant that corrects and improves text you have already written, not a generator that writes from a blank page. For drafting, use a chatbot like Claude or ChatGPT, then run Grammarly over the result as the polish step.
Grammarly vs QuillBot: which do I need?
They solve different problems. Grammarly catches correctness and tone issues in your own sentence; QuillBot rewrites and paraphrases it into new phrasings. Many writers use both: Grammarly to correct, QuillBot to rephrase.