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FreemiumBy Grammarly, Inc.

Grammarly

World-leading AI writing assistant with 40M+ daily users. Real-time correction, generative AI, multilingual support. $13B valuation, 96% Fortune 500.

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Description

Grammarly

What is Grammarly?

Grammarly is the world's leading AI-powered writing assistant, designed to improve written communication in real-time. Founded in 2009 in Kyiv, Ukraine by Max Lytvyn, Alex Shevchenko, and Dmytro Lider, Grammarly has evolved from a simple grammar checker to a complete AI productivity platform.
With over 40 million daily active users, integration across 500,000+ applications and websites, and presence in 96% of Fortune 500 companies, Grammarly is one of the most successful AI startups in the world, with a $13 billion valuation and over $700 million in annual recurring revenue (2025).

Company and Funding

DataInformation
CompanyGrammarly, Inc.
Founded2009
HeadquartersSan Francisco, California, USA
FoundersMax Lytvyn, Alex Shevchenko, Dmytro Lider
Current CEOShishir Mehrotra (since January 2025)
Valuation$13 billion (since 2021)
Total Funding$1.55B+
Revenue (2025)$700M+ ARR
Employees1,000+
Daily Users40+ million
Organizations70,000+ (50,000+ Business)
Founders' Story: All three founders are Ukrainian. Lytvyn and Shevchenko met at the International Christian University in Ukraine, where they created My DropBox, a plagiarism detection system. They sold that company to Blackboard Inc. in 2007 and used the proceeds to found Grammarly. The company was profitable for 8 years before seeking external funding.
Funding Rounds:
  • Series A (May 2017): $110M - General Catalyst, IVP, Spark Capital
  • Series B (October 2019): $90M - $1B+ valuation
  • Series C (November 2021): $200M+ - Baillie Gifford, BlackRock ($13B val.)
  • Non-dilutive financing (May 2025): $1B - General Catalyst CVF (revenue-based)
Investors: General Catalyst, Baillie Gifford, BlackRock, IVP, Spark Capital, Breyer Capital, SignalFire, Sozo Ventures, Section Partners
Strategic Acquisitions (2024-2025):
  • Coda (December 2024): AI productivity platform - Shishir Mehrotra becomes CEO
  • Superhuman (July 2025): AI email client ($825M val., $36M ARR, 100+ employees)

Products and Key Features

Grammarly Editor

  • Real-time grammar, spelling, and punctuation correction
  • Clarity, conciseness, and tone suggestions
  • Plagiarism detection (16+ billion web pages indexed)
  • Full-sentence rewrites with one click
  • Writing goal customization (audience, formality, intent)

GrammarlyGO (Generative AI - March 2023)

  • Contextual text generation with prompts
  • Message rewriting adjusting tone and formality
  • Brainstorming and ideation
  • Powered by OpenAI ChatGPT API
  • 100-2,000 monthly prompts depending on plan

Grammarly Docs (2025)

  • AI-native document editor
  • AI agents for every stage of the writing process
  • Coda Brain integration for enterprise context
  • Rubric-aligned feedback
  • Citation assistance

Grammarly Go (2025)

  • Personalized AI assistant
  • Works across all your tools, tabs, and workflows
  • Understands context and respects privacy
  • Adapts to how you already work

Grammarly Authorship (2023)

  • AI-generated content detection
  • Designed for educational institutions
  • Student writing development monitoring
  • Maintains academic integrity while embracing AI

Multilingual Support (September 2025)

First expansion beyond English in 15 years:
  • Corrections: Spanish, French, German, Italian, Portuguese
  • Rewrites: Same 5 languages + Ukrainian
  • Inline translation: 19 languages including Chinese, Japanese, Korean, Dutch, Swedish, Polish, Turkish, Indonesian

Pricing and Plans (December 2025)

PlanMonthly PriceAnnual PriceAI Prompts
Free$0$0100/month
Pro$30$12/month ($144/year)2,000/month
EnterpriseCustomCustomUnlimited
EducationInstitutionalInstitutionalVariable

Features by Plan

Free:
  • Basic grammar, spelling, punctuation corrections
  • Tone detection
  • 100 AI prompts/month
  • Browser extensions and apps
Pro (formerly Premium):
  • Everything in Free
  • Full-sentence rewrites
  • Tone and formality suggestions
  • Plagiarism detection
  • Vocabulary suggestions
  • Snippets (reusable phrases)
  • Auto-citations
  • 2,000 AI prompts/month
  • Brand tones and style guides (teams)
  • Up to 149 members per team
Enterprise:
  • Everything in Pro
  • Unlimited AI prompts
  • Advanced security features (confidential mode, DLP)
  • Audit Logs API
  • Granular roles and permissions
  • Centralized knowledge share
  • Customized onboarding
  • Dedicated customer success
  • SSO/SAML integrations

Integrations and Platforms

Browser Extensions

  • Google Chrome (30M+ downloads)
  • Mozilla Firefox
  • Microsoft Edge
  • Safari

Desktop Applications

  • Grammarly for Windows
  • Grammarly for Mac
  • Microsoft Office Add-in (10M+ downloads)

Mobile Applications

  • Grammarly Keyboard iOS
  • Grammarly Keyboard Android (10M+ downloads)
  • Grammarly iPad App

Direct Integrations

  • Google Docs
  • Gmail
  • Microsoft Word, Outlook
  • Slack
  • Salesforce
  • LinkedIn
  • Twitter/X
  • Facebook
  • 500,000+ applications and websites

Technology and AI

Machine Learning & NLP

  • Over 100 linguistic rules
  • Custom deep learning models
  • Algorithm updates every ~2 weeks
  • 14+ billion words processed daily
  • 95% error detection accuracy
  • 400+ error types detected (Premium)

Most Common Errors Detected

  1. Missing commas
  2. Incorrect prepositions
  3. Missing articles

AI Models

  • Proprietary NLP models developed internally
  • OpenAI integration for GrammarlyGO
  • Coda Brain for enterprise context

Impact Metrics

For Individuals

  • 74% average improvement in writing quality
  • 76% report writing with more confidence
  • 99% of students say it improved their grades
  • 94% of students improved grades after 3 months

For Businesses

  • $5,000 saved per employee per year
  • 19 work days saved per employee annually
  • 30 hours/year saved by average user
  • 50+ million emails edited weekly

Recognition

  • #1 in G2 AI Writing Assistants (Enterprise, Mid-Market, Americas)
  • 25+ industry awards
  • 94% User Satisfaction Rating (14,000+ reviews)
  • Inc. 500 list (2013)

Security and Privacy

Grammarly has 15+ years of experience in secure and responsible AI:
  • Does not sell user data - business model based solely on subscriptions
  • Isolated data - one customer's writing never appears in another's suggestions
  • Most comprehensive enterprise-grade certifications of any AI writing assistance company
  • Trust Center with detailed documentation
  • Confidential mode for sensitive content (Enterprise)
  • Data Loss Prevention (Enterprise)
  • GDPR, SOC 2, HIPAA compliant

Notable Customers

Fortune 500 (96% penetration)

  • Atlassian
  • Databricks
  • Zoom
  • Ford
  • Chevron
  • Salesforce
  • Expedia
  • Zapier
  • HackerOne
  • Cisco

Education (3,000+ institutions)

  • NYC Department of Education
  • University of Illinois Chicago
  • Universities worldwide

Competition

CompetitorGrammarly Differentiator
ChatGPTGrammarly works natively in 500K+ apps
Microsoft CopilotGreater writing specialization
QuillBotMore enterprise features and security
Ginger SoftwareBetter error detection (95%)
ProWritingAidMore intuitive interface
HemingwayMore generative AI features

Roadmap and Future Vision

Transformation to AI Productivity Platform

With Coda and Superhuman acquisitions, Grammarly is evolving from writing assistant to:
  • AI productivity platform for apps and agents
  • Hundreds of task-specific intelligent agents
  • "AI superhighway" delivering agents to users where they work
  • Direct competition with Microsoft, Google, and Salesforce

Upcoming Features

  • Advanced clarity suggestions in Spanish (2025)
  • Multilingual support in other languages (2026)
  • Multilingual integration in Grammarly Docs
  • Potential IPO in the future

Support for Ukraine

Despite its global success, Grammarly hasn't forgotten its Ukrainian roots:
  • Maintains office in Kyiv
  • Full salaries and benefits to employees in Ukraine during war
  • $5 million donated since conflict began
  • Suspended services in Russia and Belarus
  • Founders (net worth $4B each) among wealthiest Ukrainians

Technical Information

SpecificationDetail
Correction LanguagesEnglish + 5 additional
Translation Languages19 languages
English VariantsUS, UK, Canadian, Australian, Indian
Words/day14+ billion processed
Compatible Apps500,000+
Accuracy~95%
Error Types150+ (Free), 400+ (Pro)

Key Features

Real-time grammar, spelling, and punctuation correction

Full-sentence rewrites with one click

Tone, clarity, and conciseness suggestions

Plagiarism detection (16B+ pages indexed)

GrammarlyGO: AI text generation

Grammarly Docs: AI-native document editor

Multilingual support: 6 languages + 19 for translation

Integration with 500,000+ apps and websites

Extensions for Chrome, Firefox, Edge, Safari

Desktop apps for Windows and Mac

Mobile keyboard for iOS and Android

Microsoft Office add-in

AI-generated content detection (Authorship)

Customizable style guides and brand tones

Reusable text snippets

Auto-citations from research websites

Inline translation in 19 languages

Coda Brain: Integrated enterprise context

Confidential mode for sensitive content

Analytics and usage reports for teams

Use Cases

Writing error-free professional emails

Academic writing and university papers

Marketing content creation and copywriting

Clear and effective business communication

Sales proposal and document preparation

Learning and improving written English

Optimized social media posts

Technical documentation and manuals

Remote team internal communication

Brand consistency across all communications

Content originality verification

Quick text translation between languages

CV and cover letter writing

Written customer support

Blog and article writing

Legal communication and contracts

Executive reports and presentations

Clearer Slack and Teams messages

Collaborative writing in global teams

Academic feedback for students

User Reviews

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