Grammarly
Visit Grammarly →About Grammarly
Grammarly is a writing assistant that checks spelling, grammar, punctuation, clarity and tone, and can rewrite or generate text with AI. It runs in the browser, as a desktop app, in Microsoft Office and mobile keyboards, so the same suggestions follow you across almost any text field.
The product changed significantly in 2025. In October, the company that made Grammarly became part of Superhuman, bringing Grammarly (writing), Coda (documents and workspace) and Superhuman Mail together under one name. Grammarly is now positioned as an AI-native writing and agent platform rather than a standalone grammar checker.
Alongside the rebrand, the company launched Superhuman Go, a proactive AI assistant that can act across more than 1 million connected apps and websites through connectors and MCP. Plans today are limited to Free, Pro and Enterprise.
Key capabilities include real-time grammar and style corrections, tone detection, full-sentence rewrites, plagiarism checking, and prompt-driven AI generation measured in monthly AI prompts. It offers writing help in 20+ languages, with advanced AI suggestions in English, Spanish, French, German, Portuguese and Italian, plus translation into 19 languages.
Pricing is freemium. The Free plan costs $0 per month and includes 100 AI prompts per month plus core corrections. Pro costs $12 per member per month billed annually, or $30 per month billed monthly, and includes 2,000 AI prompts per month plus sentence rewrites, tone adjustment, plagiarism and AI-text detection, with a 7-day free trial. Enterprise is custom-priced with unlimited AI prompts, BYOK, SAML SSO and DLP controls, available through Superhuman Go.
The main limitations: advanced AI suggestions are limited to six languages even though basic corrections cover 20+, the monthly AI prompt caps can be reached quickly by heavy users, some rewrite suggestions still need human judgment, and the browser extension can feel intrusive in certain editors. It fits students, professionals, multilingual writers and teams who want consistent, on-the-fly writing help across their tools.
- Works almost everywhere: browser, desktop, Office and mobile keyboards
- Strong real-time grammar, punctuation and tone feedback
- AI rewriting and generation now built in via prompts, not just corrections
- Generous free tier that covers core proofreading and 100 AI prompts a month
- Superhuman Go agent can act across 1 million+ connected apps and websites
- Advanced AI language suggestions are limited to six languages, though basic corrections cover 20+
- Monthly AI prompt limits can run out fast for heavy writers
- Full AI generation and advanced features are gated behind Pro
- Suggestions can be over-eager or context-blind and need review
- Only three plans exist - Free, Pro and Enterprise - with no separate team tier
Choose Grammarly if…
- You write in English every day and want live grammar and tone help
- You want AI rewriting and generation inside the tools you already use
- You are a non-native English speaker who wants a safety net
- You need consistent writing quality across email, docs and the web
- You are fine starting free and upgrading to Pro for more AI prompts
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