What Is Grammarly? Team Style Rules, Tone and AI Agents
By Joris van Huët · Grammarly's own site
The short answer: if your team keeps misspelling its own product names or drifting in tone between the website and LinkedIn, Grammarly Pro is a modest fix: $144 per member a year, or $30 a month on monthly billing, with a shared style rule set and a brand tone profile for teams of up to 149, per Grammarly's pricing article, checked on 26 October 2026. Grammarly itself is an AI writing assistant that works across your apps and is now part of Superhuman.
Disclosure: I may earn a commission through some links on this site. It does not change what this page says.
Work out before you add seats:
- The yearly bill. For example, eight members on annual billing cost 8 x $144 = $1,152 a year, against 8 x $30 x 12 = $2,880 on monthly billing, using the pricing article.
- The style guide you already have. Style rules import from a CSV template, so the brand book's naming page is a day's work, not a project, per the style rules article.
- The numbers that prove it. The same article shows how often each rule was viewed, accepted and dismissed. A rule nobody accepts is either wrong or unnecessary.
What Grammarly does
The homepage describes an AI partner for clear, credible writing: corrections, paragraph rewrites, tone suggestions, and agents such as a Humanizer and an AI Detector. In Grammarly's docs, a set of task agents sits in the side panel: Reader Reactions, Paraphraser, Citation Finder, Plagiarism Checker and others, per the agents page. Generative prompts are capped at 100 a month on Free and 2,000 per member on Pro. Multilingual suggestions, in beta, cover more than 20 languages including Dutch, French and German, per the multilingual article.
For teams the useful parts are style rules, brand tones, snippets of approved text and usage analytics.
Who it fits, and who it does not
It fits content, comms and support teams whose writing goes out under one brand and many names. It fits less well a group running several brands on Pro, which allows one style rule set; Business plans allow up to 50. Teams still on the Microsoft Office add-in should know Grammarly is retiring it in favour of the Windows app.
Plans
From the plans page and the pricing article, checked on 26 October 2026, in USD:
| Plan | Price | Style rule sets | Brand tone profiles | AI prompts a month |
|---|---|---|---|---|
| Free | $0 | None | None | 100 |
| Pro, monthly | $30 per member a month | 1 | 1 | 2,000 per member |
| Pro, quarterly | $60 per member per three months | 1 | 1 | 2,000 per member |
| Pro, annual | $144 per member a year | 1 | 1 | 2,000 per member |
| Enterprise | Through sales | Unlimited | Unlimited | Unlimited |
Regional prices in euros and pounds appear at checkout. The annual price hands Grammarly a full year of each seat at signing; while the team is still testing whether the rules stick, the quarterly plan in the table is the shorter commitment. The plans page lists unlimited style guides and brand tones only on Enterprise; for a company with several brands, that one-of-each cap on Pro is where the upgrade is designed to bite.
How it compares
- Quillbot is rewrite-first, with ten paraphrasing modes and freeze words for protected terms, priced by region at checkout per its pricing article. Pick it when one person reworks existing copy; pick Grammarly when a team needs shared rules.
- Microsoft Copilot sells a Copilot Business add-on at $18 per user a month paid yearly, down from $21, with drafting grounded in your work data inside Word, Outlook and Teams, per Microsoft's pricing, checked on 26 October 2026. It wins where the company already runs Microsoft 365 and needs drafting more than rule enforcement.
Getting started
Turn your naming rules into one style rule set and invite the team. How to use Grammarly takes a marketing team through that setup.
FAQ
Is there a free plan?
Yes. Free costs $0 and covers corrections, tone detection and 100 AI prompts a month, per the plans page.
Is GPTZero part of Grammarly now?
It is part of the same company. Superhuman's announcement says GPTZero is now part of Superhuman, which also owns Grammarly, and that GPTZero's checks will come to Superhuman Go.
Does Grammarly work in Dutch?
Partly. Multilingual suggestions in beta correct spelling, punctuation and grammar in Dutch and add clarity suggestions, per the multilingual article.