G
GChatGPT vs Grammarly
Pricing, features, platforms and who each one suits — side by side.
C
Choose ChatGPT if…
- you're in its core audience: individuals and students, writers and knowledge workers
G
Choose Grammarly if…
- you work on Windows, macOS, iOS
- you're in its core audience: students, professionals
Side by side
Feature ChatGPT Grammarly
Pricing modelFreemiumFreemium
Starting price$8/mo—
Free plan
Free trial
API
Open source
Trains AI on your contentYesYes, unless you opt out
Data retention—Saved documents kept until you delete them or your account
Security and compliance—SOC 2 Type II
Web search—
File upload & analysis—
Image generation—
PlatformsWebWeb, Windows, macOS, iOS, Android, Chrome
CategoryAI ChatbotsGrammar & Proofreading
CompanyOpenAISuperhuman Platform Inc.
Based in—United States
Founded—2009
Part of—Superhuman
Key features
C ChatGPT
- Chat-based answers to questions and tasks
- Help with writing and editing
- Coding help through the included Codex agent
- Several individual tiers from Free to Pro
- Per-seat team workspaces through Business
- Enterprise plan sold through sales
G Grammarly
- Real-time spelling, grammar and clarity checks
- Paragraph and full-sentence rewrites
- Tone suggestions for different audiences
- Reader Reactions predicts how readers respond
- AI Detector and Humanizer agents
- Plagiarism checker and citation generator
- Works in MS Office, Google Docs and browsers
- Enterprise style guides, brand tones and DLP
Plans and prices
From each vendor's site. Prices change — confirm before buying.
ChatGPT
Free$0
Go$8/mo (US)
Plus$20/mo
ProFrom $100/mo
Business$20/user/mo billed annually; $25 monthly
EnterpriseCustom
Grammarly
Free€0
Pro€12/member/mo billed annually (€30 billed monthly)
EnterpriseCustom
Strengths and limitations
ChatGPT
- Free plan available
- Go plan costs $8/month in the US
- Codex is included in all plans, Free included
- Business plan starts at just 2 users
- Free plan has limited features
- Pro tiers cost $100–$500 per month
- Enterprise pricing is only available from sales
Grammarly
- Free plan includes grammar checks and 100 AI prompts a month
- Available on desktop, mobile, browser extensions, MS Office and Google Docs
- Pro includes plagiarism and AI-text detection
- Enterprise offers SSO, SCIM, BYOK and data loss prevention
- Pro costs €30 when billed monthly versus €12 billed annually
- Free plan is limited to 100 AI prompts per month
- Enterprise pricing is not published
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MSearchable local snapshots of your screen history on Windows 11 Copilot+ PCs
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Personal Assistants
Built from each vendor's public website; we haven't tested them hands-on. Editorial policy