Arbitr vs Grammarly Business
Grammarly helps people write clearly and on brand wherever they type. Arbitr helps teams keep every piece of content right for the market it goes to, checked against what they’ve approved. Here’s how they compare, and when you’d choose each.
Chris Connell, Arbitr
Published October 29, 2026. Last reviewed October 29, 2026.
What’s the difference between Arbitr and Grammarly?
Grammarly is an AI writing assistant that gives people real-time suggestions on correctness, clarity and tone wherever they write, plus generative AI. For teams, it adds a company style guide and brand tone profiles. Grammarly Business is now sold as Grammarly Pro for teams and Grammarly Enterprise, and Grammarly’s company became Superhuman in late 2025.
Arbitr is an AI context platform for content. Its governed memory, Cortex, holds what a company has approved (claims, prices, terms and rules), each with an owner, the markets and languages it applies to, its evidence and the period it’s in force. Arbitr’s agents create and check content against that memory, before and after it’s published.
Choose Grammarly If your only priority is clearer, more correct writing from every employee.
Choose Arbitr If your only priority is making sure what goes out, in every market and language, matches what you’ve approved.
Choose both If your people write with Grammarly and you need what they publish checked against what you’ve approved.
Arbitr vs Grammarly: features, pricing and languages
Our own comparison, based on publicly available information. Last checked October 29, 2026.
| Feature |  | Grammarly |
|---|---|---|
| What it is | AI context platform for content: a governed memory of what’s approved (Cortex) plus agents that create and check content against it | AI writing assistant for individuals and teams, part of Superhuman since late 2025 |
| Main job | Keep content right for every market: create from what’s approved and check content before and after it goes out | Real-time suggestions on correctness, clarity and tone, plus generative AI, as people write |
| Built for | Teams who own what gets said: marketing, product content, localization and legal | Every employee who writes; Grammarly says 70,000 teams use it |
| Where its knowledge lives | Cortex. Every entry has an owner, a scope (market, language, channel, audience), its evidence and the dates it’s in force. Approved decisions govern; drafts and past content don’t | A company style guide and brand tone profiles, plus organization information for AI features |
| Whose content it checks | Content from any source: your people, agencies, partners and any AI tool, through Word, Google Docs, API and MCP | What employees write in the apps and browsers where Grammarly is installed |
| Content already published | Scans what you’ve already published and flags what no longer matches what’s approved, including after a decision changes | Not presented on Grammarly’s website as of October 29, 2026 |
| Markets and regions | Market and language are held separately, so content can be right for Germany and right for Austria, even in the same language | Not presented on Grammarly’s website as of October 29, 2026 |
| Languages | Creates and checks content in 120+ languages | Real-time writing support in English, Spanish, French, German, Portuguese and Italian, plus in-line translation |
| When a person is needed | You set the bar. What falls below it goes to your nominated reviewer, or to an accredited expert from Arbitr’s network of 37,000 working to your rules | Suggestions go to the writer, who accepts or rejects them |
| Record of what happened | Every check records what was checked, the approved entry it was checked against, what was held, who decided and when | Admin analytics, including style guide adoption |
| Models | Small custom models, run on IBM watsonx; knowledge stays in Cortex, not in the model | Not presented in the sources we reviewed |
| Pricing | See Arbitr pricing | Free; Pro $12 per user per month billed annually ($30 monthly), for teams up to 149; Enterprise: custom |
| Security | SOC 2 in progress. IBM Platinum Partner | Enterprise: SSO and SCIM provisioning |
Where Grammarly is strong, and where Arbitr leads
Grammarly helps people write well. Arbitr makes sure what’s published is right.
Where Grammarly is strong
- Everywhere people write. Suggestions appear in the apps and browsers employees already use.
- Better writing for everyone. Correctness, clarity and tone for every employee, not just content teams.
- Brand basics built in. A shared style guide and brand tone profiles keep everyday writing on brand.
- Low cost to start. A free tier and a low per-user price make it quick to roll out.
Where Arbitr leads
- It checks what you’ve approved, not just how it reads. Claims, prices, specifications and policies are checked against the decision that governs them.
- Right for each market. Market and language are held separately, so content is checked against the rules for where it’s going.
- It keeps live content right. When a price, claim or policy changes, Arbitr finds where the old version is still published, including translations.
- Built for what you publish. Arbitr checks content before and after it goes out, from people, agencies, partners and any AI tool.
Why “right” matters more than “consistent”
Consistency sounds like the goal until you sell in more than one market. The same product page often needs to say different things in different places, and every version needs to be right.
41 miles per gallon
Right for US5.7 L/100 km
Right for AU5,7 l/100 km
Right for DEArbitr or Grammarly: which should you choose?
Grammarly may suit you if
- You want every employee writing more clearly and correctly
- Your teams write mostly in English or a few European languages
- You want something people can install and use today
Arbitr may suit you if
- You publish across markets and languages, and each has its own claims, prices and rules
- Content comes from many sources: teams, agencies, partners and different AI tools
- You need to know what’s already live is still right when a decision changes
Use both if
- Your people write with Grammarly, and you want Arbitr to check what they publish against what you’ve approved
Arbitr vs Grammarly Business: FAQs
What is the main difference between Arbitr and Grammarly Business?
Grammarly is an AI writing assistant that helps people write clearly, correctly and on brand as they type. Arbitr is an AI context platform that holds what a company has approved, for each market, and creates and checks published content against it.
Is Grammarly Business still available?
Grammarly now sells its team plans as Grammarly Pro, for teams of up to 149, and Grammarly Enterprise. Grammarly’s company renamed itself Superhuman in late 2025.
Can Arbitr and Grammarly be used together?
Yes. People can keep writing with Grammarly, and Arbitr checks what they publish against the approved claims, prices, terms and market rules held in Arbitr.
Which languages does Grammarly support?
Grammarly offers real-time writing support in English, Spanish, French, German, Portuguese and Italian, plus in-line translation. Arbitr creates and checks content per market and language.
How is Grammarly priced compared with Arbitr?
Grammarly has a free plan, Pro at $12 per user per month billed annually, and custom Enterprise pricing. Arbitr doesn’t price per seat; pricing is set with each customer.
Is Arbitr an alternative to Grammarly Business?
For everyday writing help, Arbitr isn’t a like-for-like replacement. If your goal is making sure what you publish is right for every market, Arbitr covers work Grammarly doesn’t present today, such as checking content against approved claims and rules per market.
Sources
- Grammarly, “Grammarly for Teams and Businesses.” grammarly.com/business.
- Business Standard, “Grammarly is now Superhuman,” October 30, 2025. business-standard.com.
- eesel AI, “Grammarly pricing 2026,” June 9, 2026. eesel.ai.
About this comparison
How we compared. We used Grammarly’s public website, documentation and announcements, and our own product documentation to compile this comparison. Where Grammarly’s site doesn’t describe a capability, we say “not presented.” Information on this page may be incomplete or change. Do your own research.
Who wrote this. Arbitr wrote this page, so we’re not neutral. We’ve aimed to describe Grammarly fairly, and we’ll correct anything that’s wrong. Email marketing@arbitr.ai.