Every score is worked out from the vendor's own pages · How we score →Disclosure
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Head-to-head · facts checked 16 Oct 2026

Claude vs Grammarly

Claude uniquely has 24 features · Grammarly uniquely has 8 features.

Claude
#12 of 20 AI assistants
7.8
/ 10
From
$20/mo (Pro)
Free plan
Yes
Grammarly
#1 of 7 AI writing assistants
8.3
/ 10
From
$12/mo (Pro plan, billed annually)
Free plan
Yes
The verdict

Claude or Grammarly?

Section 01

Pricing, plan by plan

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

Claude

Free
Free
Chat on web, iOS, Android, and desktop
Pro
$20 · $200
For everyday productivity
Max
From $100
Get the most out of Claude
Team Standard
$25 · $20
All Claude features, plus more usage than Pro
Team Premium
$125 · $100
5x more usage than standard seats
Enterprise
Custom
Seat price + usage at API rates

Grammarly

Free
Free
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

For everything else about each tool, read the full Claude review and Grammarly review.

Side by side

Company
Founded20212009
HQSan Francisco, USASan Francisco, USA
AI modelClaude (Fable, Opus, Sonnet, Haiku — Proprietary by Anthropic)Proprietary
User baseMillions+ (exact not publicly stated)40 million+
PlatformsWeb, Windows, Mac, iOS, AndroidWeb, Windows, Mac, iOS, Android, Chrome, Safari, Firefox, Edge, MS Office, Google Docs
Languages25+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$20/mo (Pro)$12/mo (Pro plan, billed annually)
EnterpriseCustom pricing — contact salesCustom
All plansFree — Free Pro — $20 Max — From $100 Team Standard — $25 Team Premium — $125 Enterprise — CustomFree — Free Pro — $30/mo Enterprise — Contact Sales
Positioning
Best forWriters, researchers and developers who want voice, memory, projects and code execution free, with deep research on paid plansIndividuals, teams, and enterprises seeking AI-powered writing assistance, grammar checking, and tone improvement
DifferentiatorClaude combines Constitutional AI safety training with powerful reasoning, massive context windows, and a growing suite of agentic tools (Claude Code, Cowork, Design, Science) all under one platform built by Anthropic.The 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, Gemini, Copilot, PerplexityHemingway Editor, ProWritingAid, QuillBot, Jasper, Copy.ai, Writer
Features
Claude Code✓—
Claude Cowork✓—
Claude Design✓—
Claude Science✓—
Microsoft 365 Integration✓—
Remote MCP Connectors✓—
AI Assistant✓—
AI Copywriting—✓
AI Research—✕
Brand Voice—Deep — 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 Checker—Built-in — available on Pro and Enterprise plans
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 IntegrationsGoogle Workspace, Slack, Microsoft 365, Microsoft Outlook, Microsoft Excel, AWS, Google Cloud Vertex AI, Microsoft Azure Foundry, remote MCP connectorsGoogle 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—✕
Section 02

Claude vs Grammarly: common questions

Is Claude or Grammarly cheaper?

Claude's cheapest paid plan is $20/mo (Pro) and Grammarly's is $12/mo (Pro plan, billed annually). Compare what each plan includes below before going on price alone.

Keep comparing