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Grammarly AI
Summary
Grammarly is a writing assistant that catches grammar and style errors in real time across your favorite apps.
Grammarly sits in your browser and writing apps, flagging mistakes as you type—grammar, spelling, tone, clarity. It's useful if you write emails, documents, or social posts and want a second pair of eyes without leaving your workflow. The free tier covers basics; Premium ($12/month) adds tone detection and advanced rewrites. The catch: the free version is genuinely limited, and Premium's AI-powered suggestions sometimes miss context or feel prescriptive. It works best for high-stakes writing where accuracy matters more than speed.
Bottom line: *Use this if email and document accuracy matter; skip it if you write fast and loose or rarely proofread.*
Pricing Plans
FreemiumLast verified 4 months ago- Price
- $12/mo
- Free Tier
- Write without spelling and grammar mistakes, see your writing tone, generate text with 100 AI prompts per month
Free
Basic writing assistance with grammar and spelling checks for individuals who want to write without mistakes.
- Write without spelling and grammar mistakes
- See your writing tone
- Generate text with 100 AI prompts per month
- Enterprise-grade privacy and security
Pro
Advanced writing features for individuals and eligible teams to achieve clear and confident writing with unlimited personalized suggestions and plagiarism detection.
- Rewrite full sentences with a click
- Adjust writing tone with ease
- Write fluently in English
- Unlimited personalized suggestions
- Detect plagiarism and AI generated text
- Generate text with 2,000 AI prompts per member per month
Enterprise
Comprehensive solution for larger organizations with proactive AI, dedicated support, and advanced security features across every app and tab.
- Proactive AI that works in every app and tab
- Dedicated support
- BYOK encryption
- Custom roles and permissions
- Data loss prevention
- Unlimited AI prompts per member per month
View full pricing on grammarly.com →
Pricing may have changed since last verified. Check the official site for current plans.
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Pros
Sign in to edit- Real-time feedback
- Grammar and spelling corrections
- Integrated with popular platforms
Cons
Sign in to edit- Limited free tier accounts
- Subscription required for advanced features
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About
- Platforms
- Web, iOS, API
- Languages
- 95+ languages
- API Available
- Yes
- Self-Hosted
- No
- Last Updated
- 2023-12
Best For
Who it's for
- Proofreading written content
- Writing emails and messages
- Editing documents
What it does well
- Writing
- Proofreading
- Email Drafting
Integrations
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Recommended skills for this tool
Auto-curated by the AIDiveForge recommendation matrix. These skills are predicted to enhance this tool based on category, capability, and domain signals.
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Editorial Style Matcher transform 30%
Rewrite a draft to match a target publication's house style (sentence length, voice, diction) without changing meaning.
Why: caps 0/0 · domain content · io-match
-
Draft Tightener enhance 30%
Cut 20 percent of a draft while preserving the argument, using sentence-level surgery instead of paragraph deletion.
Why: caps 0/0 · domain content · io-match
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Fact-and-Source Annotator post 30%
Annotate every factual claim in a draft with a source URL and confidence level, blocking publication until each claim is cited or marked opinion.
Why: caps 0/0 · domain content · io-match
-
Brand Voice Extractor post 30%
Sample existing marketing copy to produce a voice guide — do/don't, vocabulary, rhythm rules — that new drafts can be checked against.
Why: caps 0/0 · domain content · io-match
-
Podcast Chapter Generator post 30%
From an episode transcript, produce timestamped chapter markers with topic labels ready for Apple Podcasts and YouTube chapters.
Why: caps 0/0 · domain content · io-match
Frequently Asked Questions
- Is Grammarly AI free?
- Grammarly AI has a permanent free tier alongside paid upgrades (paid plans from $12/mo). You can keep using a baseline version indefinitely without paying.
- Is Grammarly AI open source?
- No — Grammarly AI is a closed-source tool. Source code is not publicly available.
- Does Grammarly AI have an API?
- Yes. Grammarly AI exposes a developer API. See the official documentation at https://grammarly.com for details.
- What are the alternatives to Grammarly AI?
- Common alternatives include Ginger, ProWritingAid. Compare them on AIDiveForge for pricing, features, and platform support.
- When was Grammarly AI released?
- Grammarly AI was first released in 2009.
- What platforms does Grammarly AI support?
- Grammarly AI is available on: Web, iOS, API.
Hours Saved & ROI Stories Community
Sign in to contributeBe the first to contribute. Concrete time/cost savings, with context. e.g. "Cut my code review backlog from 4h to 45m per week."
Best Grammarly AI alternatives →
Curated lists that include this category
Many writers miss grammar, spelling, tone, and clarity problems when they draft emails, documents, or social posts and lack an extra set of eyes inside their normal workflow.
How it works
Grammarly sits in your browser and writing apps, flagging mistakes as you type. The vendor states it covers grammar, spelling, tone, and clarity. It integrates with popular platforms and is available on Web, iOS, and via API, with connections to Slack, Zapier, and Microsoft Teams.
Pricing and limits
The tool uses a freemium model at $12 per month for Premium. The free tier covers spelling and grammar checks plus tone display and 100 AI prompts per month. Advanced tone detection and rewrites require the paid plan.
Strengths and trade-offs
Real-time feedback, grammar and spelling corrections, and broad platform integration are listed as pros. Cons include a limited free tier and the need for a subscription to unlock advanced features. The docs describe cases where AI suggestions miss context or feel prescriptive. It suits proofreading written content, writing emails and messages, and editing documents.
Who it is for / who should skip it
Use it if you need steady grammar and style support across apps and can pay for Premium when the free tier runs out. Skip it if you want unlimited free AI prompts or need suggestions that always match exact context.