SAASINSPECTOR
Head-to-head · facts checked 15 Sept 2026

Gemini vs Grammarly

Gemini uniquely has 25 features · Grammarly uniquely has 8 features.

Grammarly
#1 of 6 AI writing assistants
8.3
/ 10
From
$12/mo (Pro plan, billed annually)
Free plan
Yes
The verdict

Gemini or Grammarly?

Section 01

Pricing, plan by plan

Every plan each vendor publishes, monthly and yearly where both are offered.

Gemini

Google AI Plus
$4.99/month
Get 2x higher usage limits
Google AI Pro
$19.99/month
Get 4x higher usage limits
Google AI Ultra
$99.99/month · $99.99/month for higher usage tiers. All Pro features included.
Get up to 20x higher usage limits

Grammarly

Free
$0/mo · $0/yr
Write without mistakes, see writing tone, 100 AI prompts/month
Pro
$30/mo · $144/yr
Full sentence rewrites, tone adjustment, plagiarism/AI detection, 2,000 AI prompts/month, 7-day free trial
Enterprise
Contact Sales
Unlimited members, dedicated support, BYOK encryption, data loss prevention, custom roles, unlimited AI prompts
Section 02

Pros and cons

From each tool's full review, written from the same checked facts.

Gemini

Pros
  • Real-time Search grounding allows Gemini to pull live web information rather than relying on a knowledge cutoff, making answers more current than most competitors.
  • Deep Google Workspace integration is genuine and functional — Gmail and Docs integrations in particular are consistently praised by enterprise users for saving real time.
  • Available across web, iOS, Android, and Chrome extension, giving users flexible access across devices and workflows.
  • Rapid feature shipping pace, including Gemini 2.5 Flash, video generation via Veo 3.1, and Deep Think reasoning, all landing in 2025–2026 updates.
  • Task automation across Google Workspace covers email drafting, Docs writing, Sheets formulas, and Slides content in a single integrated tool.
  • Meeting summaries and calendar scheduling via Google Meet integration add practical workflow utility for teams already in the Google ecosystem.
  • Runs on Google's proprietary Gemini 2.5 Flash and 2.5 Pro models, with over 100 million users suggesting broad real-world adoption.
Cons
  • The Slides integration feels noticeably thinner than Gmail and Docs, with marketing users flagging it as the weakest Workspace touchpoint.
  • The product feels more like a sprawling platform than a focused tool, with Gemini bolted into so many surfaces that coherence can suffer.
  • The fast shipping pace is sometimes uncomfortably rapid, suggesting features may land before they are fully polished or tested.
  • Google's user count of 100 million lacks meaningful context given the company's history of pre-installing products across its ecosystem.
  • Note-taking functionality runs through Google Docs and is described as functional rather than elegant, falling short of dedicated note-taking tools.
  • The product is heavily optimized for users already inside the Google stack, limiting its appeal or utility for teams using other ecosystems.
Full Gemini review →

Grammarly

Pros
  • Grammarly works across an impressive range of platforms including Chrome, Safari, Firefox, Edge, Windows, Mac, iOS, Android, Microsoft Word, and Google Docs.
  • The plagiarism checker is built directly into the editor rather than being a separate export tool, a useful workflow for academic and content marketing use.
  • Real-time grammar, spelling, and punctuation corrections remain reliable and are available even on the free plan.
  • The Pro plan at $12/month billed annually unlocks full sentence rewrites, tone suggestions, and style clarity options at a competitive price point.
  • Tone detection and brand voice features make it viable for enterprise teams managing content consistency across large organizations.
  • Grammarly says it works across more than 500,000 apps and websites, making it one of the most broadly compatible writing tools.
Cons
  • The free plan is significantly limited, though it does include tone detection and 100 AI prompts a month alongside basic grammar, spelling, and punctuation; most meaningful features still require a paid Pro subscription.
  • Grammarly is now owned by Superhuman, which adds uncertainty about the product's long-term direction.
  • Brand voice customization is heavily gated, with free users restricted to a single brand tone while unlimited options require an enterprise plan.
Full Grammarly review →

Side by side

Company
Founded20232009
HQMountain View, USASan Francisco, USA
AI modelGemini 3.6 Flash, Gemini 3.1 ProProprietary
User base100M+40 million+
PlatformsWeb, iOS, Android, Chrome ExtensionWeb, Windows, Mac, iOS, Android, Chrome, Safari, Firefox, Edge, MS Office, Google Docs
Languages40+English primary, with fluency support for non-native English speakers
Pricing
Pricing modelFreemiumFreemium
Free planYesYes
Free trialNoYes — 7-day free trial for Pro
Starting price$4.99/mo$12/mo (Pro plan, billed annually)
EnterpriseCustom — Google Workspace add-on pricingCustom
Refund policyPro-rated refund via Google Play / Google account billing policies
All plansGoogle AI Plus — $4.99/month Google AI Pro — $19.99/month Google AI Ultra — $99.99/monthFree — $0/mo Pro — $30/mo Enterprise — Contact Sales
Positioning
Best forEveryday productivity, creative work, and AI assistance at work, school, or homeIndividuals, teams, and enterprises seeking AI-powered writing assistance, grammar checking, and tone improvement
DifferentiatorTiered access with up to 20x higher usage limits, Google Flow creative studio credits, and first access to advanced features like Deep Think and Gemini SparkThe most widely adopted AI writing assistant, trusted by 40 million users and 50,000 organizations, offering real-time grammar, tone, plagiarism, and AI detection with enterprise-grade security and style guide enforcement.
CompetitorsChatGPT, Claude, Microsoft CopilotHemingway Editor, ProWritingAid, QuillBot, Jasper, Copy.ai, Writer
Features
Canvas
Deep Research
Gemini Live
Google Flow Credits
Image Generation
Video Generation
AI Assistant
AI Copywriting
AI Research
Brand VoiceDeep — brand tones (1 on Free, unlimited on Enterprise), style guide, knowledge share, snippets
Browser Extension
Bulk Generation
Calendar Integration
Content Editor
Document Creation
Email Management
Grammar Style
Image Generation
Long Form Writing
Meeting Summary
Mobile App
Note Taking
Offline Mode
Paraphrasing
Plagiarism CheckerBuilt-in — available on Pro and Enterprise plans
Presentation Builder
Project Management
Research Assistant
SEO Optimization
Short Form Writing
Spreadsheet AI
Task Automation
Team Collaboration
Templates
Integrations
API Access
Browser Extension
Chrome Extension
Google Calendar
Google Docs
Google Drive
Key IntegrationsGmail, Google Docs, Google Sheets, Google Slides, Google Drive, Google Meet, Google Calendar, YouTube, Google Search, Zapier, Google AI Studio APIGoogle Docs, Microsoft Office (Word), Chrome, Safari, Firefox, Edge, Windows desktop app, Mac desktop app, iPhone, iPad, Android, Zendesk (shown in marketing)
Microsoft 365
Slack Integration
Wordpress
Zapier
Section 03

Gemini vs Grammarly: common questions

Is Gemini or Grammarly cheaper?

Gemini's cheapest paid plan is $4.99/mo and Grammarly's is $12/mo (Pro plan, billed annually). Compare what each plan includes below before going on price alone.

Keep comparing