Gemini vs Grammarly comparison

By starting price alone, Gemini is $10.01 cheaper. But price is not everything, so check the highlighted rows in the table below.

Gemini and Grammarly compared side by side in AI.

CurrencyUSDKRWEUR

Gemini

Google's AI assistant. Connects directly to Google services such as Gmail, Drive and YouTube

What is good

  • Strong integration with Google services
  • Good with long documents and video (up to 1M context)
  • Can start with the cheap AI Plus ($4.99)

What could be better

  • Fewer advantages outside the Google ecosystem
  • Features are split up in a complicated way across plans

Gemini official site

Grammarly

An AI writing assistant that fixes English grammar and sentences

What is good

  • English proofreading anywhere in browsers and apps
  • Useful for business English

What could be better

  • Advanced style and tone suggestions and paragraph rewriting are limited to 6 languages including English (Korean gets only spelling, basic grammar and translation)
  • Monthly billing is expensive

Grammarly official site

At a glance

Highlighted rows are where they differ.

ItemGeminiVisit siteGrammarlyVisit site
Starting price≈₩6,626+ ($4.99)Official USD price≈₩19,918+ ($15)Official USD price
Free tierFree plan availableFree plan available
Korean supportGoodAverage
Main models
  • Gemini 4 Argon
  • Gemini 3.8 Flash
  • Gemini 3.1 Pro
  • Gemini 3 Deep Think
  • Nano Banana 2/Pro (image)
  • Gemini Omni/Veo 3.1 (video)
  • In-house proofreading model + generative AI
  • AI agents (AI Detector/plagiarism check/AI Grader and others)
  • Superhuman Go
TypeAI servicesAI services
CategoryChatbot/Assistant, Search, Image GenerationWriting/Productivity
CompanyGoogle, United StatesGrammarly (Superhuman), United States
Plans
  • Free
  • AI Plus $4.99
  • AI Pro $19.99
  • AI Ultra $99.99 (5x), $199.99 (20x)
  • Enterprise from $21
  • Free
  • Pro $15 (annual billing $12)
  • Business $40 ($33 annual, Mail included)
  • Enterprise
Pros
  • Strong integration with Google services
  • Good with long documents and video (up to 1M context)
  • Can start with the cheap AI Plus ($4.99)
  • English proofreading anywhere in browsers and apps
  • Useful for business English
Cons
  • Fewer advantages outside the Google ecosystem
  • Features are split up in a complicated way across plans
  • Advanced style and tone suggestions and paragraph rewriting are limited to 6 languages including English (Korean gets only spelling, basic grammar and translation)
  • Monthly billing is expensive

Prices and benefits may change. Check the official site before you pay.

Prices converted at 1 USD = ₩1,327.84 (2026-10-20). Original price shown in brackets. Taxes as listed by each provider.

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