Compose AI vs Grammarly (2026): Pricing, Features & Which to Choose

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

Lower starting price
Compose AI
From $9/mo against from $12/mo
Free plan
Tie
Both have one
Higher rating
Grammarly
4.2 against 4.6
Same job?
Yes
Both are Writing tools

Side by side

Compared on	Compose AI	Grammarly
Our rating	4.2	4.6Better
Starts at	$9/moBetter	$12/mo
Free plan	Yes	Yes
Category	Writing	Writing
Plans	From $9/mo	FreeFree Pro$12/mo Business$15/user/mo
Key features	Ghost-text autocomplete across any website Inline rewrite commands (shorten, expand, tone) Works inside Gmail, Docs, and web forms Lightweight Chrome extension, no separate app Powers parts of Notion AI's autocomplete	Real-time grammar, spelling, and punctuation checks Tone detection and clarity rewrite suggestions GrammarlyGO generative drafting and rewriting Works inline across Gmail, Docs, Slack, and most websites Plagiarism checking on paid tiers
Pros	Works everywhere you type, not just inside one editor Genuinely free tier with real daily use Fast and unobtrusive, no context switching	Free tier is genuinely useful long-term, not just a trial Runs inline almost everywhere you write, no copy-pasting Over a decade of refinement on core grammar detection
Cons	No long-form generation or document workspace Autocomplete quality varies a lot by context Feels thin next to full writing platforms if that's what you need	Generative features feel bolted onto an older core product Tone and clarity suggestions can be overly conservative Desktop and browser experiences aren't perfectly consistent
Company	Compose AI, Inc., founded 2020	Grammarly, founded 2009

Prices come from each vendor's pricing page, last checked 20260629. Check the vendor before you buy.

FAQ

Questions people ask

Is Compose AI better than Grammarly?

In our reviews Compose AI scores 4.2 and Grammarly scores 4.6. The better pick depends on the job. Compose AI: Autocomplete for anything you type in the browser. Grammarly: The writing assistant almost everyone has already used.

Which is cheaper, Compose AI or Grammarly?

Compose AI has the lower starting price: from $9/mo for Compose AI and from $12/mo for Grammarly.

Do Compose AI and Grammarly have free plans?

Yes, both have a free plan.

More comparisons

Compose AI compared with

All Compose AI alternatives

Grammarly compared with

All Grammarly alternatives